BIOS 252 MIDTERM EXAM QUESTIONS WITH ACTUAL VERIFIED ANSWERS ALREADY GRADED A+ REVISED BY EXPERTS
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Course
BIOS 252
Institution
BIOS 252
BIOS 252 MIDTERM EXAM QUESTIONS WITH ACTUAL VERIFIED ANSWERS
ALREADY GRADED A+ REVISED BY EXPERTSBIOS 252 MIDTERM EXAM QUESTIONS WITH ACTUAL VERIFIED ANSWERS
ALREADY GRADED A+ REVISED BY EXPERTSBIOS 252 MIDTERM EXAM QUESTIONS WITH ACTUAL VERIFIED ANSWERS
ALREADY GRADED A+ REVISED BY EXPERTSBI...
bind, support, protect, fill spaces, store fat, produce blood cells
skeletal muscle
striated and voluntary
cardiac muscle
Involuntary muscle tissue found only in the heart, and striated
smooth muscle
, Involuntary muscle found inside many internal organs of the body, and no striations
sliding filament theory
theory that actin filaments slide toward each other during muscle contraction, while the myosin
filaments are still
twitch contraction
the brief contraction of all the muscle fibers in a motor unit in response to a single action potential in its
motor neuron
frequency of stimulation
the higher the frequency, the greater the force
isotonic contraction
muscle shortens because muscle tension exceeds load
isometric contraction
Muscle contracts but there is no movement, muscle stays the same length
origin
attachment to stationary bone
Insertion
attachment to movable bone
lever system
Consists of a lever (bone), effort (muscle action), resistance (weight of object to be moved), and fulcrum
(joint).
1st class lever
fulcrum between effort and load
ex: head resting on spine
2nd class lever
the load is between the fulcrum and the effort
ex: standing on tip toes
3rd class lever
The effort is between the fulcrum and the load
ex: bending elbow
Agonist
prime mover
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