14. Which of the following is the blood vessel with the largest diameter?
a. capillary
b. artery
c. vein
d. venule
Not sure...?
16. As a defense against pathogens, mucous membranes
a. cover all of the body's surfaces to act as an impenetrable barrier
b. line internal body surfaces that contact the environment
c. produce antibodies to combat infection
d. secrete sweat, which has antibacterial enzymes
B? I'm stuck between that and A
26. Which vessels carry deoxygenated blood?
a. the pulmonary arteries
b. the pulmonary veins
c. parts of the aorta
d. part of the atria
?
28. The final function of the digestive system is
a. absorption
b. ingestion
c. climination
d. peristalsis
A?
Thanks
-MC
---I think 26 is A
-MC
Ooops I meant B
-MC
14, D?
-MC
14c
16. Goodness, I hope your skin is never covered with mucous membranes, you will never get a husband being slimy. Try b instead.
26,28 correct.
haha, thanks!
-MC
14. To determine which blood vessel has the largest diameter, you can refer to the anatomy of blood vessels. The largest blood vessel will be the one that allows for the easiest flow of blood and has the highest capacity. In this case, the correct answer is b. artery. Arteries have thicker muscular walls compared to veins and capillaries, allowing them to withstand higher pressures. They transport oxygenated blood away from the heart to various parts of the body, and their large diameter helps facilitate blood flow.
16. To understand the function of mucous membranes as a defense against pathogens, you can eliminate answer choices that are incorrect. Option a. is not correct because mucous membranes do not cover all body surfaces, as there are areas like the skin that are not lined by mucous membranes. The correct answer is b. Mucous membranes do line internal body surfaces that come into contact with the environment, such as the respiratory, digestive, and reproductive tracts. They produce mucus, which traps pathogens and helps prevent their entry into the body.
26. Deoxygenated blood refers to blood that has low oxygen levels and is returning to the heart to be oxygenated. One way to determine which vessels carry deoxygenated blood is to understand the oxygenation process in the cardiovascular system. The correct answer is a. the pulmonary arteries. These arteries carry deoxygenated blood from the heart's right ventricle to the lungs, where it picks up oxygen and gets reoxygenated.
28. To determine the final function of the digestive system, you can eliminate answer choices that are not accurate descriptions of this system. In this case, option b. ingestion is not correct because ingestion refers to the intake of food and is not the final function of the digestive system. The correct answer is c. elimination. After the process of digestion and absorption, waste materials that cannot be used by the body are eliminated from the body through the process of defecation. Elimination is the final step in the digestive system process.
I hope this helps! Let me know if you have any more questions.