The vertical separation between the prominences of the buttocks is referred to as the
A. posterior furrow.
B. natal cleft.
C. gluteal line.
D. linea alba.
E. median furrow.
Answer: B
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The largest peripheral nerve in the body is the ______ nerve
Fill in the blank(s) with the appropriate word(s).
Which of the following statements about the Na+-K+ pump is incorrect?
a. Phosphorylation of the pump must occur before K+ can attach to its binding site. b. It has ATP synthase activity. c. It helps decrease Na+ and K+ concentration gradients across the plasma membrane. d. It regulates cell volume by controlling the concentration of solutes inside the cell. e. Its action is important for secondary active transport.
The H-shaped mass in the center of the spinal cord is mostly
A) axons. B) white matter. C) gray matter. D) black matter. E) None of the answers are correct.
Which is FALSE about interneurons?
A. They receive synaptic input from other neurons in the CNS. B. They sum excitatory and inhibitory synaptic inputs. C. They deliver synaptic input on other neurons. D. They make synapses on effector organs in the PNS. E. They can transmit information between afferent neurons and efferent neurons.