BMST Test Study Guide | Questions with 100% Correct Answers (A Rated)
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Course
BMST
Institution
BMST
Principle muscle types - ANSWER Smooth, cardiac, skeletal
Smooth muscle - ANSWER -Small and spindle
shaped -1 nucleus located at center of cell -lacks
striations
-Unattached to bones, act slowly, do not tire easily, can remain contracted for a long time
-Found in wall of internal organs
-Invo...
BMST Test Study Guide | Questions
with 100% Correct Answers (A Rated)
Principle muscle types - ANSWER Smooth, cardiac, skeletal
Smooth muscle - ANSWER -Small and spindle
shaped -1 nucleus located at center of cell -lacks
striations
-Unattached to bones, act slowly, do not tire easily, can remain contracted for a long time
-Found in wall of internal organs
-Involuntary
Cardiac muscle - ANSWER -Found in heart
-Involuntary
-Striated and branched
-Joined in a continuous network (membranes of cells are fused at intercalated
disk) -Will not permit independent cell contraction
, Skeletal muscle - ANSWER -Attached to bones of the skeleton via
tendon -Voluntary
-Bundles of muscle cells called muscle fiber
-Striated
Contractibility - ANSWER ability of a muscle to contract and shorten forcefully
Excitability - ANSWER ability to respond to nerve stimuli
Extensibility - ANSWER ability to be stretched
Elasticity - ANSWER ability to return to its normal length
Isotonic contractions - ANSWER -tension in the muscle and muscle's length at joint angle
changes
-concentric: shortening contraction
-eccentric: lengthening contraction
-Dynamic: the contractions of a muscle resulting in movement
Isometric contractions - ANSWER -When the joint angle and muscle length do not change
during contraction
-Static: no visible movement
Origin - ANSWER a muscle's proximal attachment (end of muscle closest to torso)
(least moveable)
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