The left and right coronary arteries
A.
are interconnected with several high-volume anastomoses allowing for well perfused alternate blood paths.
B.
are functional end arteries because the blockage of one of them leads to tissue death in the area it supplies.
B
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The Golgi tendon reflex
A) involves the synapse of sensory neurons from the Golgi tendon organs with stimulating interneurons at the spinal cord. B) prevents contracting muscles from applying excessive tension to tendons. C) involves the stimulation of alpha neurons leading back to the muscles that are stretching tendons. D) results in increased tension at tendons.
Nonfluent aphasia, due to a lesion in the ________, results in slow speech, difficulty in choosing words, or use of words that only approximate the correct word.
A. primary auditory area B. cerebral lateralization C. Broca area D. primary motor area E. Wernicke area
The pacemaker potential produced in autorhythmic cells is due to the presence of
a. a continuously depolarizing membrane that slowly reaches threshold. b. intercalated discs at cell junctions. c. desmosomes. d. many large mitochondria in the cytoplasm.
The intervertebral discs are composed of the tissue ________.
Fill in the blank(s) with the appropriate word(s).