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BIO 250 PRACTICE EXAM -1 with correct answers
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BIO 250 PRACTICE EXAM -1 with correct answers
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BIO 250 PRACTICEEXAM #1 with correct
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, a cut through the body that passes perpendicular to the long axis of the body into a superior and inferior
section is know as... - correct answer -transverse section
glands that discharge an oily secretion into hair follicles are... - correct answer -sebaceous gland
action potentials are conducted into the skeletal muscle fiber by... - correct answer -transverse tubules
the plates of bone found in spongy bone are called... - correct answer -trabecuale
how would blocking the activity of acetylcholinesterase affect skeletal muscle - correct answer -it would
cause spastic paralysis (muscles are contracted and unable to relax)
interaction between actin and myosin filaments of the sacromere are responsible for... - correct answer
-muscle contraction
the layer of the epidermis that contains cells undergoing division is... - correct answer -stratum
germinativum
-produced by cells called melanocytes...
-is usually some shade of brown or black...
-protects DNA from the damaging effects of U.V. radiation...
-increases with increased exposure to sunlight - correct answer -the pigment melanin
the watery medium that surrounds our cells is know as... - correct answer -interstitial fluid
in the elderly, blood supply to the dermis is reduced and sweat glands are less active. this combination
of factors would most affect... - correct answer -the ability to thermoregulate
when stress is applied to bone... - correct answer -the minerals in the bone produce a weak electrical
field that activates osteoblasts
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