In an EPSP (excitatory postsynaptic potential), there is a
A. local depolarization.
B. local hyperpolarization.
C. net movement of Cl? into the cells.
D. net movement of Na+ out of the cells.
E. decrease in action potential amplitude.
Answer: A
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A coiled fibrous protein in connective tissue that is stretchy is called
A. hyaluronic acid. B. proteoglycan. C. elastin. D. collagen. E. a reticular fiber.
In nursemaids elbow the radial head is dislocated from the
A) ulnar collateral ligament. B) radial collateral ligament. C) articular capsule. D) anular ligament. E) antebrachial interosseous membrane.
Smooth muscles in the dermis that attach to hair follicles are called ________.
What will be an ideal response?
Iron is considered a
A. trace mineral, because less than 100 milligrams are required daily in the diet. B. trace mineral, because it is rare on the Earth. C. major mineral, because it is extremely abundant in the Earth. D. major mineral, because it has a crucial physiological role.