Which tissue is characterized by an abundance of intercellular material called the matrix?
a. epithelial
b. nervous
c. muscle
d. connective
d
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A subthreshold stimulus evokes only a small muscle twitch instead of a full tetanic contraction
Indicate whether this statement is true or false.
A lesion in which structure would cause a person to have an erratic waking/sleeping cycle?
A. Satiety center B. Mammillary nucleus C. Pituitary gland D. Suprachiasmatic nucleus E. Medial geniculate nucleus
Which of the following is not a trigger for mass movements of the colon?
A. Chyme filling the duodenum B. Chyme filling the stomach C. The duodenocolic reflex D. The gastrocolic reflex E. The colorectal reflex
Exposure to the bacterium Clostridium tetani causes continuous release of acetylcholine. What effect does this have on smooth muscle?
A. Spastic paralysis B. Flaccid paralysis C. No effect D. Lockjaw E. Myocardial atrophy