In an action potential, which event directly follows repolarization?
A) The resting membrane potential is reinstated
B) Threshold is reached
C) Hypopolarization of the membrane
D) Depolarization of the membrane
E) Hyperpolarization of the membrane
E
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Together the thalamus, hypothalamus, and epithalamus are called the
A) brain stem. B) gray matter. C) diencephalon. D) cerebellum. E) rhombencephalon.
What is the fate of ACh following binding to receptors?
a. It remains bound, causing continued excitement. b. It is removed by acetylcholinesterase. c. It is actively reabsorbed by the axon terminal. d. It is passively reabsorbed by the muscle cell. e. None of the above.
Which type of section would separate superior and inferior structures?
A) transverse B) sagittal C) frontal D) coronal
The hormone that increases the flexibility of the pubic symphysis during pregnancy is
A) oxytocin. B) progesterone. C) human chorionic gonadotropin. D) human placental lactogen. E) relaxin.