physiology

Most popular questions
  1. physiology

    Which of the following statements is TRUE regarding bile? Bile is produced by the gall bladder, and secreted into the duodenum Bile is produced and secreted in response to CCK, which is in turn secreted primarily in response to high acidity of duodenal

    asked by Anna on April 26, 2010
  2. Physiology

    Suppose a salt and a glucose solution are separated by a membrane that is permeable to water but not to the solutes. The NaCl solution has a concentration of 1.95 g per 250 mL (molecular weight = 58.5). The glucose solution has a concentration of 9.0 g per

    asked by ivy on May 14, 2011
  3. physiology

    Muscles located in the walls of the small intestine help push digested material along. Muscles located in the walls of arteries help push blood along. Based on this information and your understanding of muscle types, which of the following statements is

    asked by no one on November 8, 2018
  4. physiology

    when the pH of the extracellular fluid DECLINES the a) pH of the urine increases b) kidneys reabsorb less water c) kidneys excrete more sodium ions d) kidneys secrete more potassium ions e) kidneys excrete more bicarbonate ions study guide question thank

    asked by pbear on December 11, 2006
  5. physiology

    anaerobic respiration is triggered when the ratio of ________falls below a critical level. a.carbon dioxide supply to oxygen need b.oxygen supply to glucose need c.glucose supply to glucose need d.oxygen supply to oxygen need the electron transport chain

    asked by Natash on September 17, 2008
  6. Physiology

    When the pH of the extracellular fluid declines: 1 the kidneys excrete more sodium ions. 2 the kidneys excrete more bicarbonate ions. 3 the kidneys reabsorb more potassium ions. 4 the kidneys reabsorb less water. 5 the pH of the urine increases.

    asked by Ali on March 15, 2019
  7. physiology

    Pepsin would have the greatest activity... a.)when the pH of the chyme is greater than 3. b.)immediately upon entering the duodenum. c.)immediately upon secretion into the stomach. d.)when the pH of the chyme is less than 3.

    asked by becca on December 10, 2011
  8. physiology

    The single most important factor influencing potassium ion secretion is a) the potassium ion content in the renal tubule cells b) intracellular sodium levels c) potassium ion concentration in blood plasma d) pH of the ICF c

    asked by pbear on December 11, 2006
  9. Physiology

    Pure gold has a density of 19 g/ml. If you bought a gold ring and found it had a volume of 0.3 ml and it weighed 5.7 grams, is it real gold? Show me your calculation

    asked by Jerome on January 27, 2011
  10. Physiology

    Why is the Achilles tendon reflex protective and what is it protecting? Is it protective because it prevents the muscle from being overstretched? I don't know what it is protecting.

    asked by ADK on October 19, 2014
  11. physiology

    True or False The secretion of GnRH, FSH, and LH are pulsatile instead of continuous?

    asked by becca on December 4, 2011
  12. Physiology

    Suppose you were to grind up and homogenate a pancreas. Do you think it would be possible to isolate insulin from this hemogenate? ( Hint: remember that the pancreas is also an exocrine gland, producing pancreatic juice) Explain your answer

    asked by Amy on May 18, 2011
  13. Physiology

    Indicate the site of the following activity in the digestive system (mouth, esophagus, stomach, small intestine, large intestine, liver, gall bladder, pancreas). 1.breakdown of cholesterol by formation of bile acid 2. principal site of formation of folic

    asked by ivy on May 18, 2011
  14. physiology

    how the kidney is able to regulate its own blood flow is an example of …. A/ extrinsic regulation C/ Hormonal control B/ humoral control D/ neural control E/ intrinsic regulation

    asked by tram on November 23, 2018
  15. Physiology

    What is the volume of 0.23 kg of pure water?

    asked by Jerome on January 27, 2011
  16. physiology

    a One of the major physiological factors that triggers thirst is: a) a rise in plasma osmolarity b) a dry mouth from high temperatures c) becoming overly agitated d) drinking caffeinated beverages a

    asked by sheila on December 11, 2006
  17. Physiology

    If you have a respiratory minute volume of8.7 L and your tidal volume is 670mL determine breaths per minute?

    asked by Chloe on April 8, 2019
  18. Physiology

    Suppose you were to grind up and homogenate a pancreas. Do you think it would be possible to isolate insulin from this hemogenate? ( Hint: remember that the pancreas is also an exocrine gland, producing pancreatic juice) Explain your answer

    asked by ivy on May 14, 2011
  19. Physiology

    Before the invention of refrigerators, pioneers preserved meat by salting it. Explain how meat can be preserved by this procedure.(Hint: think about what salting the meat would do to decomposer organisms, such as bacteria and fungi)

    asked by ivy on May 14, 2011
  20. Physiology

    What are the different nuances of meaning associated with the expressions brain damage and central nervous system impairment?

    asked by Tise on August 5, 2013
  21. Physiology

    Air in the alveoli has a partial pressure of nitrogen of 569 mm Hg, oxygen is 104 mm Hg, water is 40 mm Hg, Carbon dioxide is 47 mm Hg. What is the total pressure? What is the percent composition of each gas (partial pressure/total pressure x 10)

    asked by Chloe on April 8, 2019
  22. physiology

    Which of the following is TRUE regarding the small intestine? The small intestine secretes roughly the same volume of fluid as it absorbs Segmentation is responsible for mixing the chyme and bringing it in contact with the intestinal wall for absorption

    asked by Anna on April 26, 2010
  23. Physiology

    Compare the properties of an EPSP with those of an action potential?

    asked by Lia on June 6, 2011
  24. physiology

    You are a physiologist on a space flight to a distant planet. You discover aliens inhabiting the planet and they are willing to submit to your tests. You discover that the aliens kidney handles the sugar alcohol mannitol just like our kidneys handle

    asked by Erika on November 19, 2008
  25. Physiology

    if someone is infected with the common cold virus, which type of nonspecific immune response would attempt to deal with the invader? A) T cells B) b cells C) antibodies D) none of these

    asked by Ali on June 6, 2012
  26. physiology

    Most of the glucose secreted by the liver during fasting is due to A. glycogenolysis. B. gluconeogenesis. C. lipolysis. D. deamination 57.Fatty acids are NOT an energy source for A. the brain. B. resting skeletal muscle. C. the liver. D. the heart. is it

    asked by anonymous on September 16, 2008
  27. Physiology

    Indicate whether the following would increase or decrease during exercise.? 1.activity of the sympathetic nervous system 2.urine FORMATION 3.vasodilation of blood vessels in the skeletal muscles 4. stroke volume 5.venous return 6.activity of the vagus

    asked by ivy on May 18, 2011
  28. physiology

    Which of the following statements pertaining to protein digestion and absorption is FALSE? The majority of amino acids and peptides are absorbed in the upper portion of the small intestine. Protein can enter the GI tract via ingestion or via secretion as

    asked by Anna on April 26, 2010
  29. physiology

    Which of the following is FALSE regarding carbohydrate digestion and absorption? Carbohydrates are broken into monosachrides prior to absorption The removal of sodium and monosachrides from the intestinal lumen favors water secretion Monosachrides are

    asked by Anna on April 26, 2010
  30. physiology

    Oxidation reduction reactions a) occur via the gain of hydrogen or the loss of oxygen b) utilize hydrogenases c) require oxidases d) are rarely coupled together study guide question thank you a

    asked by pbear on December 11, 2006
  31. Physiology

    Would you expect the muscle fibers of the tongue to be striated or smooth? What about the muscle of the diaphragm? Explain your answer.

    asked by ivy on May 14, 2011
  32. physiology

    Is the hormone protein,steroid or glycoprotein? 1. Follicle-stimulating hormone 2. Cortisol 3. Antidiuretic hormone 4. Parathyroid hormone 5. Thyroid-stimulating hormone 6. Insulin 7. Norepinephrine

    asked by ivy on April 9, 2011
  33. physiology

    Excess potassium ion is eliminated from the body by a) the digestive system b) the kidneys c) the spleen d) sweating e) the liver b

    asked by pbear on December 11, 2006
  34. physiology

    NAD+ and FAD a) are oxidized to form NADH+H+ and FADH2 b) pick up hydrogen and carry it to the electron transport chain c) are reduced molecules d) all of these Study guide question Thank you this one is b

    asked by pbear on December 11, 2006
  35. physiology

    list from smallest to largest to smallest; atom, bacteria, sugar molecule, or ribosome

    asked by Anonymous on September 16, 2016
  36. physiology

    I have some questions related to diabetes. Im just wondering if someone's fasting glucose level could be different if they have Type I diabetes compared to Type II diabetes, or would they be similar? Also, if a drug for treating Type II diabetes supressed

    asked by kayla on April 3, 2012
  37. physiology

    blood helps maintain homeostasis by all of these mechanisms EXCEPT: a. eliminates waste products b. protects about foreign substances c. transports nutrients and gases d. regulates pH e. clot formation I don't totally understand this question. I know that

    asked by lulu78 on July 19, 2011
  38. Physiology

    Compare and Contrast the structure and function of the epithelium of the skin and the epithelium of the intestion

    asked by ivy on May 14, 2011
  39. Physiology

    If you placed the stethoscope on the patient's bracial artery, but did not put the BP cuff on the patient, you wouldnt hear blood flow sounds. Explain Why you woundnt hear hear bllod floww sounds if you didn't put the BP cuff in the patient?

    asked by Ivy on April 13, 2011
  40. Physiology

    Prostaglandins are formed as part of the inflammatory response, and are often formed after a cell has been damaged. From what cell organelle are prostaglandins formed?

    asked by Jerome on February 15, 2011
  41. physiology

    starvation decreases metabolic rate by as much as a. 10% b.20% c. 40% d.65%

    asked by anna on December 11, 2008
  42. physiology

    Why do the control mechanisms have several intergation centers? Julia, did you mean integration or interrogation? The control systems are not simple, they are multilayered, multistepped, and operate by releasing hormones, enzymes, and bioactive substances

    asked by julia on June 3, 2007
  43. physiology

    an unintentional increase in CO2 is a cause of respiratory acidosis but a deliberate increase in CO2 is a compensation for metabolic alkalosis True or False

    asked by pbear on December 11, 2006
  44. physiology

    When the amount of sodium ion in extracellular fluid INCREASES: a) ADH secretion decreases b) there is a decreased thirst c) there is an increase in the volume of urine produced d) osmoreceptors are stimulated e) aldosterone secretion increases study guide

    asked by pbear on December 11, 2006
  45. physiology

    Factors that increase the secretion of antidiuretic hormone include all of the following except: a)increased osmolarity of the ECF b) decreased renal blood flow c) increased concentration of potassium ions in the ICF d) increased concentration of sodium

    asked by pbear on December 11, 2006
  46. Physiology

    When maternal oxygen is transferred to the fetus and fetal CO2 is passed back, how does this affect the maternal dissociation curve? Does this shift increase the transfer of oxygen to the fetus?

    asked by Sean on March 3, 2013
  47. Physiology

    The rate at which the Na+-K+ pump operates is not constant but is controlled by a combined effect of changes in ICF Na+ concentration and ECF K+ concentration. Do you think an increase in both ICF Na+ and ECF K+ concentrations would accelerate or slow down

    asked by Morgan on September 14, 2011
  48. Physiology

    Which structures of the inner ear would be activated by a somersault? A cartwheel? By fast acceleration in a race car?

    asked by Paige on June 2, 2011
  49. Physiology

    For discussion of endocrine disorders 1.Diabetes insipidus Hormone affected? Too much or too little? 2.Graves’ disease Hormone affected? Too much or too little? 3.Acromegaly Hormone affected? Too much or too little? 4.Addison’s disease Hormone

    asked by ivy on May 18, 2011
  50. Physiology

    What is the difference between the function of autonomic transmitters and receptors? In what way or how do they regulate effector cells that are dually innervated? Thanks!

    asked by Josh on February 15, 2011
  51. Physiology

    Anesthetics such as ether, chloroform and nitrous oxide reduce responsiveness of cells by blocking ion channels and altering other properties of cells. What chemical property of these molecules enables them to easily enter cells?

    asked by Jerome on February 15, 2011
  52. Physiology

    Briefly answer the question about cellular processes. (Hint: think about the function of the cell in question.) Cells in the pancreas, which makes a lot of digestive enzymes, tend to have a lot of rough endoplasmic reticulum. Why?

    asked by Jerome on February 15, 2011
  53. physiology

    Which of the following statements regarding pepsin is FALSE? Pepsin is derived from the inactive enzyme pepsinogen Pepsin primarily works to digest fatty acids Pepsinogen secretion is stimulated by increased protein concentration, gastric distension, and

    asked by Anna on April 26, 2010
  54. physiology

    You are a physiologist on a space flight to a distant planet. You discover aliens inhabiting the planet and they are willing to submit to your tests. You discover that the aliens kidney handles the sugar alcohol mannitol just like our kidneys handle

    asked by Erika on November 18, 2008
  55. physiology

    the blood-brain barrier prevents hydrophobic molecules from diffusing into the brain. T or F Excitable cells are incapable of maintaining a constant resting membrane potential. T or F The membrane of resting nerve cells is more permeable to______ions than

    asked by anna on October 12, 2008
  56. physiology

    the respiratory mechanism of acid-base balance: a) operates well only within a very narrow margin b) requires an enzyme within red blood cells that causes the formation of carbonic acid c) is considered a chemical buffering system d) includes an increased

    asked by pbear on December 11, 2006
  57. physiology

    Make a good argument for blood to be placed in an organ system OTHER than cardiovascular. Make a good argument for blood to remain in the cardiovascular system. I chose lungs because it is positioned in the same level as heart, but don't know what else to

    asked by Nisar on June 21, 2005
  58. physiology

    Which one(s) of the essential chemical elements (O, H, C, N) does blood contain? It contains all of them. I hope this helps. Thanks for asking.

    asked by Jawad on June 20, 2005
  59. Physiology

    Will someone look at these again please? There are 2 wrong but can't figure out which 2 1.During which stage of cellular respiration is most ATP made? C  A. Glycolysis  B. Chemiosmosis  C. Electron Transport Chain  D. Citric acid Cycle  2. The

    asked by Hayley on January 21, 2018
  60. Physiology

    1. Two molecules of ____ are produced by glycolysis. Each molecule has ____ carbons. C A. Oxaloacetate...4 B. Citrate...3 C. Pyruvate...3 D. Acetate...4 2. Oxaloacetate combines with acetyl coA at the beginning of. D A. Electron transport chain B.

    asked by Hayley on January 21, 2018
  61. physiology

    Given a Helium-Neon laser-based fiber optic Doppler probe at an angle of 60¡C with a blood vessel that registers a frequency shift of 63KHz, what is the velocity of the blood? Is this a reasonable number from a physiologic point of view when compared to

    asked by cs on June 16, 2011
  62. Physiology

    Match the hormone or regulatory mechanism to digestive function.? a. Enterokinase b. gastrin c. intestinal cells of Cajal d. cholecystokinin e. CFTR f.enteric nervous system 1._______ this hormone contributes to the secretion of pancreatic juice 2._______

    asked by ivy on May 18, 2011
  63. physiology

    Discuss the similarities and differences between the pelvic and pectoral girdles and relate findings to function.

    asked by lulu78 on May 16, 2011
  64. physiology

    How is this hormones regulated: hypothlamus/pituitary axis, nervous system,feedback inhibition indicate which? 1. Follicle stimulating hormone 2. Cortisol 3. Antidiuretic hormone 4. Parathyroid hormone 5. Thyroid-stimulating hormone 6. Insulin 7.

    asked by ivy on April 11, 2011
  65. physiology

    Which might, in theory, be used to combat osteoporosis? Parathyroid or Calcitonin?

    asked by ivy on April 11, 2011
  66. Physiology

    Name a disease caused by a defect in the mitochondria and describe the symptoms. In both cases, the disease may refer to a structural defect in the organelle, or some type of abnormal activity that takes place inside the organelle.

    asked by Jerome on February 15, 2011
  67. Physiology

    Name a disease caused by a defect in the lysosome and describe the symptoms.

    asked by Jerome on February 15, 2011
  68. Physiology

    Indicate whether the following circumstances would tend to increase, decrease or have no effect on the rate of enzyme activity. 1.adding more substrate but keeping the amount of enzyme of the same 2.adding more enzyme but keeping the amount of substrate

    asked by Jerome on February 15, 2011
  69. Physiology

    Why do cells tend to die if their lysosomes are damaged and break open?

    asked by Jerome on February 15, 2011
  70. Physiology

    The muscle cells of a trained athlete tend to have more mitochondria than those of a couch potato. Why?

    asked by Jerome on February 15, 2011
  71. Physiology

    If a man’s ideal weight is 165 lbs. and he weighs 185 lbs., how many pounds above his ideal weight is he? What percent above his ideal weight is he? ______________lbs. above ideal weight ______________% above ideal weight

    asked by Ivy on February 9, 2011
  72. Physiology

    What condition triggers its release(e.g., glucose in blood) 1.Thyroid hormone 2.ADH 3. Aldosterone 4. Epinephrine 5. Melatonin 6. Estrogen

    asked by Ivy on March 28, 2011
  73. Physiology

    Why is it important to clear a neurotransmitter quickly from the synaptic cleft? What might happen to the target muscle cell if the neurotransmitter were NOT cleared? What might happen if neurotransmitter reuptake occured too quickly?

    asked by Ivy on March 29, 2011
  74. Physiology

    If the R waves of leads I and II are both 4mV, what is the value of lead III? a. 8mV b. 1mV c. -4mV d. 0mV e. -8mV

    asked by Alex on May 17, 2010
  75. Physiology

    If the R waves of leads I and II are both 4mV, what is the value of lead III? a. 8mV b. 1mV c. -4mV d. 0mV e. -8mV

    asked by Alex on May 17, 2010
  76. physiology

    Gastrin is a hormone secreted into the __________ by the ___________. Blood; stomach Lumen; stomach Lumen; pancreas Blood; small intestine

    asked by Anna on April 26, 2010
  77. Physiology

    The amount of DNA (measured in ng per mg ventricle) decreased. One nucleus is present in each vertebrate myocardial cell (each cell is mononucleated). Explain how it is possible that a decrease in mass-specific DNA concentration indicates growth of

    asked by brad on June 24, 2009
  78. physiology

    dizziness during hyperventilation is due to a decrease in cerebral blood flow. The decreased blood flow is caused by a. vasodilation b. decreased stroke volume c.vasoconstriction d. decreased respriation

    asked by Natash on November 11, 2008
  79. physiology

    Hypotension could be induced by a.excessive renin secretion b.excessive antidiuretic hormone secretion c.excessive aldosterone secretion d.excessive atrial natriuretic factor secretion

    asked by Natash on November 11, 2008
  80. physiology

    what percent of blood flow to the body per minute goes to the brain ? 10, 20, 25, or 30% ?

    asked by anna on October 12, 2008
  81. physiology

    Assume that fluid enters the distal convoluted tubule with an osmolarity of 100 mOsm and that the maximum osmolarity of medullary interstitial fluid is 1100 mOsm. As plasma ADH levels rise, the osmolarity of the urine a) approaches 300 mOsm, the normal

    asked by pbear on December 11, 2006
  82. physiology

    Study guide question...please help Bob attends a party. a few hours before the party, Bob ate beans and cabbage. His best friend made a funny joke and Bob finds it funny and his abdominal muscles begin to contract forcefully as he laughs. Physiologically,

    asked by csumicro on December 10, 2006
  83. physiology

    Heres the scenario: You stop at McDonald's and buy a Sausage Biscuit. Thinking about the chemical breakdown of foodstuffs, these are the questions... 1) what the main food molecule is in each part of the sandwich 2) where in the digestive tract each part

    asked by csumicro on December 10, 2006
  84. Physiology

    Which one(s) of the essetional chemcial elements (C, H, O, N) does blood contain. You only need to ask the question once. Additional repetitions will not get you a faster response. An answer to your question can be found in response to your other post(s).

    asked by Jawad on June 20, 2005
  85. Physiology

    1. Atp synthase is an enzyme in the. D A. NUCLEUS B. CELL MEMBRANE C. MITOCHONDRIAL MEMBRANE D. MITOCHONDRIAL MATRIX 2. Each condon on a(n) ____ molecule encodes for ___ amino acids. A A. mRNA...one B. mRNA....three C. tRNA...three D. tRNA...one

    asked by Hayley on January 21, 2018
  86. Physiology

    1. Atp synthase is an enzyme in the. C A. NUCLEUS B. CELL MEMBRANE C. MITOCHONDRIAL MEMBRANE D. MITOCHONDRIAL MATRIX 2. Each condon on a(n) ____ molecule encodes for ___ amino acids. B A. mRNA...one B. mRNA....three C. tRNA...three D. tRNA...one 3. Two

    asked by Hayley on January 20, 2018
  87. Physiology

    1.During which stage of cellular respiration is most ATP made? C A. Glycolysis B. Chemiosmosis C. Electron Transport Chain D. Citric acid Cycle 2. The anticodon is part of a(n) ____ molecule and the codon is part of a(n) ___ molecule? B A. tRNA...rRNA B.

    asked by Hayley on January 20, 2018
  88. physiology

    How does alkalosis stimulates the secretion of erythropoietin?

    asked by Akam Ahz on November 4, 2017
  89. physiology

    how many grams of glucose (180grams/mole) to make a 13% glucose solution with a final volume of 600 milliters.

    asked by sam on February 20, 2017
  90. Physiology

    How many is moles are in 0.5L of a 3.0M solution of sodium chloride? Sodium chloride dissociates into 2 osmoles per mole. I'm having trouble setting this up. My teacher couldn't explain it clear enough and neither does the book.

    asked by Karen on September 8, 2015
  91. Physiology

    What would be (3) world arguments for birth control and two (2) world arguments against birth control?!

    asked by Jason on December 1, 2014
  92. Physiology

    How are Lower Body Negative Pressure and hemorrhage similar and different?

    asked by Lindsey on January 21, 2013
  93. physiology

    Match each term with the appropriate description. A. peptide hormone B. steroid hormone C. amino acid-derived hormone D. anterior pituitary E. hypothalamus F. posterior pituitary lipophobic molecule that interacts with receptors on cell surface

    asked by lilianna on November 7, 2012
  94. Physiology

    Can someone direct me on the question below? I am not sure how to work this problem. Thank you. Chambers A and B are separated by a membrane. Chamber A contains 15.7 M KNO3 and chamber B contains 10.98 M KNO3. If K+ is in equilibrium across the membrane,

    asked by Sara Lee on August 29, 2012
  95. Physiology

    Palpation of the left axillary region demonstrated palpable lymph nodes extending into the ipsilateral anterior thorax. ( Does ipsilateral refer to the axillary ( armpit), meaning the anterior thorax is on the same side as the axillary (left)? ( Must be

    asked by Sarah on August 25, 2012
  96. Physiology

    How might the following affect blood volume (increase or decrease) (note: refer to physiology of kidney): High protein concentration in blood plasma Secretion of ADH Renin-angiotensin-aldosterone ANF (atrial natriuretic factor)

    asked by ivy on May 8, 2011
  97. Physiology

    what causes calcium to be released in sliding filament action for muscle contraction?

    asked by ivy on May 6, 2011
  98. physiology

    please help with a link to scientific articles about metabolic demands of excercise in cardiovascular system

    asked by kabelo on April 21, 2011
  99. Physiology

    Compare and contrast the activity of acetylcholine, dopamine, serotonin, and norepinephrine. If the statement applies to more than one, indicate which ones. ___________________________ curare interferes with the action of this neurotransmitter

    asked by Ivy on March 18, 2011
  100. Physiology

    Obesity is defined medically as 20% above a person’s ideal weight. If a person’s ideal weight is 72 kg, when (above what weight) would that person be considered obese? ________________kg

    asked by Ivy on February 9, 2011

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