Which does not prevent entrance of foreign bodies into the respiratory system?
A. Nasal hairs
B. Saliva
C. Mucus
D. Lysozyme
E. Twisted passageways
Answer: B
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The connective tissue wrappings of a nerve, beginning at the outermost layer, are
A. epineurium ? endoneurium? perineurium. B. epineurium ? perineurium? endoneurium. C. perineurium ? epineurium? endoneurium. D. endoneurium ? perineurium? epineurium. E. perineurium ? endoneurium? epineurium.
In the diagram, which organelle is responsible for autophagy and autolysis?
a) C b) B c) F d) J e) D
Which of the following structures is probably NOT directly involved in memory?
A) prefrontal cortex B) medulla oblongata C) thalamus D) hippocampus
A person who has difficulty swallowing is diagnosed as having esophageal achalasia, a condition that involves the ANS. What division and action would you expect to be the cause of this problem?
A) defects in both sympathetic and parasympathetic responses, causing esophageal spasms B) sympathetic, which causes too-rapid peristaltic movement of the esophagus C) a defect in the sympathetic swallowing center that coordinates esophageal contraction D) parasympathetic, which causes excessive and irregular esophageal contraction E) None of the answers are correct.