From the heart to body tissues, which of the following sequences of vessels is correct?
A. muscular artery, arteriole, elastic artery, capillary
B. arteriole, muscular artery, elastic artery, capillary
C. elastic artery, muscular artery, arteriole, capillary
D. elastic artery, arteriole, muscular artery, capillary
E. distributing artery, muscular artery, medium artery, capillary
C
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Accommodation of the lens occurs when
A. the lens becomes more spherical. B. parasympathetic axons stimulate the ciliary muscles. C. ciliary muscles contract. D. the ciliary body moves closer to the lens. E. All of these choices are correct.
The type of neuronal circuit that spreads information from one presynaptic neuron to several postsynaptic neurons is a ________ circuit.
A. reverberating B. diverging C. converging D. parallel-after-discharge E. None of the choices is correct.
Hyposecretion of growth hormone during childhood leads to ________
A) pituitary dwarfism B) Cushing's disease C) acromegaly D) myxedema E) gigantism
The figure illustrates a detailed drawing of the neuromuscular junction. What does "B" represent?
A. Presynaptic terminal B. Sarcolemma C. Synaptic vesicles D. Synaptic cleft E. Postsynaptic membrane