Because the capillaries have the smallest radii of any vascular segment, they are the major resistive vessels
Indicate whether the statement is true or false
F
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Answer the following statements true (T) or false (F)
1) Irritation of the phrenic nerve may cause diaphragm spasms called hiccups. 2) The obturator nerve branches from the sacral plexus. 3) Reciprocal inhibition means that while one sensory nerve is stimulated, another sensory neuron for synergistic muscles in the same area is inhibited and cannot respond. 4) The mucous membrane that lines the eyelids and is reflected over the anterior surface of the eyeball is the conjunctiva. 5) Researchers have found that retinal ganglionic fields are of two types: on center or off center.
Besides visual input, what other sensations contribute to the sense of equilibrium?
A) strong leg muscles B) mental activities, such as counting backwards C) proprioceptors detecting information about neck muscles D) sound detected in the cochlea
Which of the labeled papilla houses 100—300 taste buds each?
v a) A b) B c) C d) D e) Both A and D
Which of the following is not a role of ionic calcium in muscle contraction?
A) triggers neurotransmitter secretion B) promotes breakdown of glycogen and ATP synthesis C) removes contraction inhibitor D) activates epinephrine released from adrenal gland