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Muscles

QuestionAnswer
What is the smiling Muscle zygomatticus
true or false: muscles help to produce heat essential for maintenance of normal body temperature. true
what is contractility ability of skeletal muscle to shorten with force
what is excitability capacity of skeletal muscle to respond to a stimulus
what is exstensibility ability to be stretched
what is elasticity ability to recoil to their original resting
what is the the connective tissue sheath surrounding each skeletal muscle epimysium
between the origin and the insertion belly
connective tissue located outside the epimysium. it surrounds and separates muscles. Fascia
what is the perimysium a muscle composed of single muscle cells.
what is a muscle cell called muscle fiber
intrinsic tongue muscles change the shape of tongue
insertion end of the muscle undergoing the greatest
some muscles have multiple origins or head
increase in number of motor units being activated recruitment
H and I bands shorten
muscle twitch contraction of an entire muscle
Surrounds and separates muscles Epimysium
actin thin 2 minute strands of pearls twisted together
myosin thick bundles of minute golf clubs
light area I band
I band consist of actin
A band extends length of myosin
Neck muscle sternocleidomastoid
mastication chewing muscle
thoracic muscle muscles that move the thorax
Trapezius rotates scapula
serratus anterior pulls scapula anteriorly
pectoralis major adducts and flexes the arm
latissimus dorsi medially rotates, adducts and powerfully extends arm
deltiod attaches the humerus to the scapula and clavical
whats an antagonist muscles that work in opposition
whats a synergist muscles that work together
whats a prime mover if one muscle plays a major role in a group of synergists
4 pairs of mastication muscles 2 pair of pterygoids, temporalis, and masseter
diaphragm dome shaped muscle that aids in and accomplishes quiet breathing
sternocleidomastoid lateral neck muscle and prime mover, rotates and abducts the head
Created by: abbyross84
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