The muscle that causes an action is the
A. agonist.
B. antagonist.
C. mediator.
D. synergist.
Answer: A
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Which of the following statements regarding phagocytes and phagocytosis is TRUE?
A. Macrophages, monocytes, and mast cells are phagocytes. B. Contact of phagocytes with microbes stimulates the phagocytes to release chemicals that mediate the inflammatory response. C. Phagocytosis is a process that only occurs within the bloodstream. D. Phagocytosis is stimulated by the presence of proteins called rhodopsins. E. Phagocytosis is the process by which leukocytes exit the bloodstream.
A somatic spinal reflex that involves one effector muscle being stimulated while the opposing muscle is inhibited is called _____ innervation
a) reversal b) relaxed c) representative d) reciprocal e) relegated
The war veteran experiences an intense burning sensation seeming to come from where his foot had been amputated. He most likely has
A) hereditary sensory and autonomic neuropathy. B) reflex sympathetic dystrophy. C) post traumatic stress disorder. D) anosmia.
What term is used to describe a transmembrane potential in which the electrical and chemical gradients are equal and opposite with no net ion movement?
A. Action potential B. Graded potential C. Excitatory postsynaptic potential D. Equilibrium potential