What is the greatest determinant of the intracellular water volume?
A) Ca2+ B) PO43- C) Cl- D) K+ E) Na+
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Question 2) Peptide hormones are synthesized by cytoplasmic ribosomes as active enzymes.
Indicate whether the statement is true or false
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Question 3) Why would an enlarged prostate gland interfere with urination?
A) It produces thicker prostatic secretions that block the urethra.
B) It inhibits urine production.
C) It compresses the urethra.
D) It inhibits the micturition reflex.
E) It develops calcified deposits that block the urethra.
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Question 4) Place the following events in synaptic transmission at a cholinergic synapse in order:
A - A postsynaptic potential is produced; B - Voltage gated calcium channels open and calcium enters the cell; C - ACh is released and diffuses across the synaptic cleft; D - A nerve signal arrives at a synaptic knob; E - Ligand gated sodium channels open and sodium enters the cell.
A) D, B, C, E, A B) B, D, C, A, E C) D, B, E, A, C D) B, C, D, E, A
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Question 5) Your grandmother is experiencing temporary dizziness, blurred vision, paralysis on her left side, and mild aphasia. What do you think might be happening?
A) She is having a TIA. B) She has an aortic aneurism.
C) She has arteriosclerosis. D) She is having a myocardial infarction.
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Question 6) The lumbar vertebrae are ________ to the thoracic vertebrae.
A) anterior B) inferior C) superior D) cephalic E) posterior
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Question 7) The joint between the L2 and L3 vertebrae is a ________.
A) syndesmosis
B) synchondrosis
C) gomphosis
D) synostosis
E) symphysis
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Question 8) Cholesterol is essential for the synthesis of steroid hormones.
Indicate whether the statement is true or false
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Question 9) The visceral pericardium is ________ to the parietal pericardium.
A) lateral B) deep C) medial D) anterior E) superficial
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Question 10) Where does saltatory conduction occur?
A) From node to node in myelinated fibers
B) From node to node in unmyelinated fibers
C) Down the entire length of an unmyelinated fiber
D) Down the entire length of a myelinated fiber
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