The adult human trachea is about ________ in diameter and contains ________ tracheal cartilages
A) 1.0 cm; 15-20
B) 1.0 cm; 10-15
C) 2.5 cm; 15-20
D) 2.5 cm; 40-50
E) 4.5 cm; 60-80
C
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Why do people with Parkinson's disease experience resting tremors?
A. Damage to the cerebellum alternately activates agonist/antagonist muscle pairs. B. Acetylcholinesterase at neuromuscular junctions is inactivated. C. Activation of the sensorimotor cortex is reduced when the substantia nigra fails to deliver dopamine to the basal nuclei. D. Excess glutamate is released in the premotor areas of the motor cortex. E. Dopamine-secreting tumors directly activate alpha motor neurons.
Painful urination, urinary frequency, nighttime urination, and foul smelling, cloudy urine are symptoms of ________
A) Uremia B) Diabetes insipidus C) Urinary tract infection D) Renal failure
The internal acoustic meatus is located in which bone?
A) occipital B) ethmoid C) sphenoid D) temporal E) parietal
The submucosal nerve plexus provides the major nerve supply to the GI tract wall and controls GI motility
Indicate whether the statement is true or false