Muscles with fibers that run perpendicular to the long axis of the body are called
A) lateralis.
B) transversus.
C) rectus.
D) oblique.
E) medialis.
Answer: B
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A fascicle is a
A) group of muscle fibers that are encased in the perimysium. B) layer of connective tissue that separates muscle from skin. C) group of muscle fibers that are all part of the same motor unit. D) group of muscle fibers and motor neurons. E) collection of myofibrils in a muscle fiber.
A ______, also called a mole, is a harmless, localized overgrowth of melanin-forming cells
Fill in the blank with correct word.
Merocrine sweat glands
A) respond to elevated body temperature. B) produce a potentially odorous secretion. C) are the same as apocrine glands. D) are most common in the axilla. E) are usually attached to hair follicles.
Graded potentials
a. are local changes in membrane potential that occur in varying degrees of magnitude b. are weak action potentials c. serve as long-distance signals d. are only depolarizations e. always lead to action potentials