physiology

posted by .

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 _________ions.

a.sodium, potassium
b. calcium, potassium
c.potassium, sodium
d.chloride, potassium


Nerve cells depolarize due to the influx of K+ True or False


I reallllllllly need this for a test

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Check + biology

    The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell …
  2. Bio _

    The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell …
  3. Bio+ chcekc!

    The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell …
  4. Bio + check!!

    The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell …
  5. check+ please!

    The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell …
  6. check!

    The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell …
  7. Physiology

    Glial cells normally lose their mitotic ability prior to birth True or False Which of the following is NOT a function of astrocytes?
  8. Biochemistry

    A cell has a resting membrane potential of -66 mV and a membrane Cl ion equilibrium potential of -24.0 mV If a neurotransmitter acts on the cell membrane to open channels that are specifically permeable to Cl, will the membrane potential …
  9. Biology

    18. The function of neurons is to a. maintain a difference in electrical charge across the cell membrane b. have specific ions cross the membrane through ion channels c. maintain a membrane potential with charged ions on either side …
  10. Animal Physiology-Membrane Potential

    Intracellular Extracellular Na+ 12 mM 160 mM Cl- 7 mM 110 mM K+ 140 mM 5 mM 1.How do you calculate the equilibrium potential for potassium, K+, under these conditions?

More Similar Questions