Tight junctions are found primarily in what type of tissue?
a. nerves
b. tendons
c. brain tissue
d. muscles
e. sheets of epithelial tissue
e
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A threshold stimulus applied to an excitable membrane is one that is just sufficient to:
A. trigger an excitatory postsynaptic potential. B. cause a change in membrane potential. C. trigger an action potential. D. be conducted to the axon hillock. E. depolarize a dendrite.
What is true about the blood supply to the skin?
A) Both epidermis and dermis are poorly vascularized. B) Epidermis is avascular and dermis is richly vascularized. C) Epidermis is richly vascularized and dermis is avascular. D) Both epidermis and dermis are richly vascularized.
Which channel type responds when a molecule binds to it by opening or closing?
What will be an ideal response?
When electrolytes are deficient, a person may experience ____________, a desire to eat salty foods.
Fill in the blank(s) with the appropriate word(s).