Which of the labeled structures in the diagram of the trigeminothalamic pathway is a second-order neuron?
a) A
b) B
c) C
d) D
e) E
e
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Which of the following is NOT a correct comparison of cardiac myocytes to other muscle cell types?
A) Like some smooth muscle cells, cardiac myocytes are electrically coupled. B) Like skeletal muscle, contraction of cardiac muscle is under autonomic nervous control. C) Like smooth muscle cells, some cardiac myocytes have pacemaker potentials. D) Like smooth muscle cells, cardiac muscle is under hormonal control. E) Like skeletal muscle cells, actin and myosin are organized into sarcomeres.
All of the following local chemical factors will cause vasodilation of arterioles, except
a. decreased K+. b. increased CO2. c. increased acid. d. decreased O2. e. histamine release.
The _____ is the largest organ in the body.?
A) ?pancreas B) ?liver C) ?stomach D) ?gallbladder
A blood clot attached to a blood vessel wall is called a(an)
A. thrombus. B. embolus. C. prostacylin. D. hemorrhage. E. anticoagulant.