There are no cranial nerves associated with which part of the brain?
A. Medulla oblongata
B. Thalamus
C. Midbrain
D. Cerebellum
E. Pons
Answer: D
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Which component of the ECG represents the repolarization of the ventricles?
A) P-R interval B) S-T segment C) P wave D) T wave
Which of the following is not found in the ureter?
A. Two layers of smooth muscle B. Adventitia C. Skeletal muscle D. Three layers of smooth muscle E. Transitional epithelium
Matching
A) Sodium ions B) Acetylcholinesterase C) Calcium ions D) Acetylcholine E) Creatine phosphate 27) The final chemical messenger and "trigger" for muscle contraction. It binds to troponin. 28) A neurotransmitter released at motor end plates by the axon terminals. 29) It diffuses across the cell membrane resulting in depolarization. 30) Activates synaptic vesicles in axon terminals to fuse with plasma membrane of axon terminal. 31) Used to convert ADP to ATP by transfer of a high-energy phosphate group. A reserve high-energy compound. 32) Breaks down ACh into its building blocks, rendering it ineffective.
Hypothetically, if the interstitial endocrine cells of a male were selectively killed off by an environmental toxin, which of the following would occur?
A. His voice would become deeper. B. He would experience increased virility. C. He would experience increased hairiness (hirsutism). D. His testosterone levels would decrease.