Which of the following is inserted on the calcaneus by the Achilles tendon?
A. tibialis posterior
B. peroneus longus
C. peroneus brevis
D. extensor digitorum longus
E. gastrocnemius
E
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Blood flow through most organs in the systemic circuit is regulated primarily by increasing or decreasing the ________ activity to arteriolar smooth muscles in the organ. Another form of regulation, called ________, depends upon the metabolic activity of the organ. Increased activity leads to increased interstitial fluid metabolites, which cause ________ of the arterioles. The former is a type of ________ regulation of blood flow; the latter is an example of ________ regulation.
A. sympathetic; active hyperemia; dilation; extrinsic; intrinsic B. parasympathetic; reactive hyperemia; dilation; extrinsic; intrinsic C. parasympathetic; active hyperemia; constriction; extrinsic; intrinsic D. sympathetic; reactive hyperemia; dilation; intrinsic; extrinsic E. sympathetic; flow autoregulation; constriction; intrinsic; extrinsic
Slowly adapting proprioceptors that would let you know the position of your thumb without looking at it are known as
A. phasic receptors. B. primary receptors. C. secondary receptors. D. tonic receptors.
What type of muscle assists an agonist by causing a like movement or by stabilizing a joint over which an agonist acts?
A) a prime mover B) an agonist C) a synergist D) an antagonist
How many cells does the human body have?
A. 100 million B. 25 trillion C. 4 billion D. 75 trillion