Which bone feature is not correctly paired with its description?
A. Suture - immovable joint
B. Sinus - hollow cavity
C. Malleolus - a hole for blood vessels and nerves
D. Head - large knob
Answer: C
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What is a follicle composed of?
A. An organ in the ovary B. An oocyte C. An oocyte enclosed in follicular or granulosa cells D. A group of granulosa cells E. A group of follicular cells
A neuron with nicotinic receptors is exposed to acetylcholine. This will not lead to
A) activation of chemically gated ion channels. B) excitation of the neuron. C) entry of sodium ion. D) binding of the nicotine to the channel. E) activation of muscarinic receptors.
Which of the following statements concerning the properties of action potentials is TRUE?
A. The rate of propagation of an action potential down an axon is independent of stimulus strength. B. Action potentials can undergo summation. C. A supra-threshold stimulus can stimulate an action potential during the absolute refractory period. D. Action potentials generally propagate from the axon terminal toward the initial segment. E. Increasing the size of a stimulus will increase the amplitude of an action potential.
Patients with chronic renal failure may present with uremic frost, especially:
A) in the urine. B) during emesis. C) to the flank area. D) around the face.