An EPSP:
A. is a direct result of the opening of ligand-gated channels permeable to both Na+ and K+ ions.
B. is a direct result of the opening of voltage-gated channels permeable to both Na+ and K+ ions.
C. stabilizes the membrane to remain at its resting potential.
D. opens voltage-gated Ca2+ channels in the presynaptic membrane.
E. occurs when voltage-gated Cl- channels open in a postsynaptic cell membrane.
A
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The gas law that describes the pressure changes that occur during pulmonary ventilation is
a) Boyle's law b) Charles' law c) Henry's law d) The inhalation law e) The law of partial pressure
The part of the hair that begins from a small cap-shaped cluster of cells is called the:
a. hair follicle b. hair shaft c. hair papilla d. none of the above
The ________ of the sperm contains microtubules and mitochondria.
Fill in the blank(s) with the appropriate word(s).
Neonate is the term used to refer to a baby
A. in the 24-48 hours preceding birth. B. in the 24-48 hours after birth. C. during the first month after birth. D. during the six months after birth. E. during the first year after birth.