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37 Cards in this Set
- Front
- Back
antagonist
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muscles that act in opposition to an agonist/prime mover
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aponeurosis
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fibrous or membranous sheet connecting a muscle and the part ot moves
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atrophy
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a reduction in size or wasting away of an organ/cell resulting from disease
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contractility
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the ability to receive and respond stimulus
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fatigue
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state of continuous, partial muscle contraction
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fixator
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muscles acting to immobilize a joint or a bon
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flaccid
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soft, flabby; relaxed..muscle that lost its nerve supply
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hypertrophy
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increase in the size of tissue.organ independent of the body's general growth
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irritability
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ability to respond to a stimulus (to shorten when stimulus is received)
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isotonic
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having a uniform tension; of the same tone
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ligaments
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cord of fibrous tissue that connects bones
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muscle tone
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keeps the muscle healthy and ready to react
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prime mover
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muscle whose contraction are primarily responsible for a particular movement
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synergist
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muscle cooperating with another muscle to produce a desired movement
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tendons
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cord of dense fibrous tissue attaching a muscle to a bone
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how many muscles in the human body?
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600
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describe cardiac
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coordinated activity to act as a pump(in the heart) propels blood through blood vessels...uninucleated
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describe skeletal
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voluntarily, cells are long, cylindrical, multinucleated, striations
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describe smooth
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(visceral) no striations, found in hollow organs (stomach, bladder, uterus) (blood vessels)
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location and function:buccinator
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maxilla/mandible near molars
compresses cheek as in whistling and sucking |
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location and function: deltoid
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scapular spine/ clavicle...abducts humerus
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location and function: diaphragm
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unpaired muscle that acts with the external intercostals to accomplish inspiration
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location and function: external oblique
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Location: The rectus abdominis runs the length of the torso from the pubic bone to mid-chest.
Function: Used for flexion: pulls the torso toward the hips and vice versa; responsible for tilt of pelvis. |
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location and function:internal oblique
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Location: The internal oblique lies underneath the external oblique and runs diagonally in the opposite direction.
Function: Aids in twisting the torso: left internal is active when you twist to the left, aiding the right external oblique (and vice versa) |
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location and function: gastrocnemius
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chief muscle of the calf leg, flexes the knee and foot. runs to the Achilles tendon
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location and function: gluteus maximus
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flex knee and extend hip
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location and function: gluteus medius
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one of the three common injection sites
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location and function: hamstrings
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tendons at the back of a person's knee
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location and function: masseter
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runs through the rear part of the cheek from temporal bone to the lower jaw and closes when chewing
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location and function: orbicularis oris
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kissing muscle
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location and function: orbicularis oculi
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muscle in the face that closes the eyelids
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location and function: pectoralis major
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prime mover and shoulder, flexion and adduction
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location and function: rectus abdominus
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straight muscle of the abdomen
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location and function: sternocleidomastoid
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prayer muscles
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location and function: sartorius trapezius
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allows you to shrug your shoulders
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location and function: tranverse abdomonis
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compresses abdomen
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location and function: vastis lateralis
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extends knee
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