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45 Cards in this Set
- Front
- Back
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what are the 3 types of m. |
skeletal, cardiac and smooth |
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where is smooth m. found in the body |
wall of hollow organs (except the heart) digestive sy, blood vessels, and urinary sy ... |
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what are m that you don't control called |
involuntary m. |
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what types of m are involuntary |
smooth and cardiac |
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which m. has no striations |
smooth m. |
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what type of m. has intercalated disk |
cardiac |
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what are intercalated disk |
disk that attach cardiac cells together to make the heart act as one organ |
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what type of m. makes up the heart |
cardiac |
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4 characteristics of skeletal m. |
striated, many nuclei, voluntary, and found attached to bones |
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4 characteristics of cardiac m. |
striated, uninuclei, involuntary and found in heart |
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4 characteristics of smooth m. |
non striated, involuntary, uninuclei, found in bags and tubes |
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functions of the skeletal m. |
movement- skeleton, maintaining posture, stabilizes joints, generated heat by shivering |
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insertion |
m. attached to the bone that moves |
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origin |
m. attached to the bone that is immovable |
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what is a contraction |
movement of insertion towards the origin |
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interaction of skeletal m. |
m. pull bones |
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flexor |
brings arm close to body |
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extensor |
brings arm away from the body |
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adduction |
brings arm to side of body
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abduction |
lifts arms away from the side of the body |
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pronation |
palm of hand facing the ground
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supination |
palm of hand facing the sky |
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What is the prime mover |
m. that provides major contractions for providing specific movement |
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antagonist |
the m. that opposes a particular movement... opposite side of the joint |
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synergist |
m that assist the action of the antagonist... reduces undesirable movements that might occur |
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fixator |
a synergist that immobilizes the bone |
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6 ways to name m. |
location, shape, relative size, direction of fibers, location of origin/insertion, and action |
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ex of location |
frontalis, temporalis and femoris |
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ex of shape |
trapezius, deltoid and rhomboid |
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ex of relative size |
maximus, minimus,. medius, longus, and brevis |
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maximus |
largest |
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minimus |
smallest |
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medius |
medium |
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longus |
long |
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brevis |
short |
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ex of m. direction of fibers |
rectus, midline, transverse and oblique |
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rectus |
run parallel |
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midline |
straight |
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transverse |
perpendicular to the midline |
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oblique |
diagonally/ angle |
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ex of location of origin and insertion |
sternocleidomastoid- origin- sternum and clavical/ insertion- mastoid process ......... mylohyoid- origin- mandible/ insertion- hyoid bone |
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ex of action |
adductor longus, adductor magnus and masseter |
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science name for chewing |
mastication
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deltoids |
shoulder m. |
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abdominal m |
stomach m. |
