Atrial depolarization causes the ________
A) P wave
B) first heart sound
C) quiescent period
D) QRS complex
E) T wave
A
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Steven has the dominant tongue rolling phenotype but he does not know his genotype. His wife has the recessive non-tongue rolling trait. If their son can roll his tongue this means ________
A) Steven has a homozygous recessive genotype B) Steven has a heterozygous genotype C) Steven has a homozygous dominant genotype D) that it is impossible to tell Steven's genotype from this information alone
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.
The ulnar nerve provides feeling to the skin of the ___ .
Fill in the blank(s) with the appropriate word(s).
What category of receptors do Pacinian corpuscles belong to?
A. Chemoreceptors B. Nociceptors C. Photoreceptors D. Mechanoreceptors