The neurotransmitter ________ is released from most postganglionic sympathetic neurons.
Fill in the blank(s) with the appropriate word(s).
norepinephrine
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The enzyme _____________ resides in the synaptic cleft and breaks down molecules of ACh
Fill in the blank with correct word.
All fibers of the trapezius muscle are innervated by the __________.
A. scapular nerve B. spinal accessory nerve C. axillary nerve D. coxal nerve
Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as:
A) sebaceous. B) ceruminous. C) endocrine. D) exocrine.
What statement best describes dense regular collagenous connective tissue?
A) Dense regular collagenous connective tissue forms tendons and ligaments. B) Dense regular collagenous connective tissue contains parallel bundles of elastic fibers. C) Dense regular collagenous connective tissue is found in the dermis of the skin. D) Dense regular collagenous connective tissue contains bundles of collagen fibers arranged haphazardly.