What term is used to describe a single, brief contraction and relaxation cycle in a muscle fiber?
A. Contraction phase
B. Whole muscle contraction
C. Power stroke
D. Muscle twitch
Ans: D. Muscle twitch
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Two mechanical barriers to infection are interferon and inflammation.
Answer the following statement true (T) or false (F)
A hypodermic needle would penetrate the skin in which order?
A) epidermis, papillary layer, reticular layer B) reticular layer, papillary layer, epidermis C) papillary layer, reticular layer, epidermis D) epidermis, reticular layer, papillary layer E) None of the answers are correct.
The ________ can be found as part of the epithalamus, near the superior colliculi of the midbrain.
A. hypothalamus B. pituitary gland C. pineal gland D. adrenal gland E. hypophysis
Injury to the thalamus would
A. affect pH regulation. B. affect sensory projection to the cerebral cortex. C. prevent puberty. D. affect body temperature regulation. E. cause us to stop breathing.