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92 Cards in this Set
- Front
- Back
Skeletal muscles constitute approximately ____ of our body weight
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40 - 50 %
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The connective Tissue sheath that envelopes bundles of muscle fibers is
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Perimysium
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The covering of individual muscle fibers is
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endomysium
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course sheat covers muscle as a whole
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epimysium
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groups of skeletal muscle fibers are bound together by a connective tissue envelope called
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epimysium
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an apnoeurosis could be described as
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flat sheet of connective tissue connecting muscle to other structures
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mucles that contract at the same time as the prime mover are
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synergists and fixators
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What are the components of the lever system?
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bone joint pull load
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the type of lever arrangement in which the pull is exerted between the fulcrum and resistance or weight to be moved is
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first class lever
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muscles may be named according to
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function direction of fibers points of attachment
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example of an extensor?
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trapezius
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example of abductor
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deltoid, peroneus longus
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flexor
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flexor carpi radialis
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a muscle that assists with mastication
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masseter
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the muscle that draws the eyebrows together producing vertical wrinkles above the nose
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currugator supercili
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which of the following muscles has fibers on a transverse plane
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transverse abdominis
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which muscle function to protect the abdominal viscera
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external oblique, internal oblique, transversus abdominis
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which muscle forms the pelvic floor
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levator ani
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which of the following muscles to does not move the upper arm
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pectoralis major - flexor
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latissmus dorsi - arm
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extensor
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muscles part of the rotator cuff muscles
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infraspinatus, supraspinatus, teres minor
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the teres major and teres minor muscles move the
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shoulder
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the muscle that allows the thumb to be drawn across the palm to touch the tip of any finger is
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opponens pollicis
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extensor digitorium
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extends the fingers
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palmaris longus
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flexes the hand
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flexor carpi radialis
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flexers hand and forearm
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the muscle that raises or lowers the shoulders or shrugs them is
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trapezius
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deltoid
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abducts the arm
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latissimus dorsi
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extends the upper arm
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pectoralis minor
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pulls shoulder girdle down
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the muscle that extends and adducts the upper arm is
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latissimus dorsi
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the posterior arm muscle that extends the forearm is
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triceps brachii
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the muscle that flexes the semipronated or semisupinated forearm is
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brachioradialis
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muscles that move the upper arm originate on the
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ulna and humerous
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the muscle assisting in rotating the arm outward is
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teres minor
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the action of the brachialis muscle is
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flex the forearm
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the flexor muscles that move the fingers are located on the
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anterior lateral surface of the forearm
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muscles that move the thigh
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adductor longus, gracialis, illiopsoas
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muscles of the quadracrips femoris group
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rectur femoris, vastus medialis, vastus intermedius
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when an athlete injures a muscle of the hamstring group
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posterior thigh
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muscles that move the foot
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soleus, peroneus longus, tibialis anterior
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muscles located on the lower leg move
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the foot
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which of the following body systems assists the muscles in maintaining posture?
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digestive, endocrine, excretory
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the purposeful movement is determined by
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the relationship of muscles to joints, how muscles are attached to the skeleton, the manner in which muscles are grouped
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which fibrous connective tissue structures have a lining of synovial fluid
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tendon sheaths
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a muscle is attached to the femur and the tibia when the muscle contracts the knee bends meaning
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tibia attachment is the origin, femur attachment is the insertion
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muscles that acts on shoulder girdle
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trapezius, levator scapulae, rhomboideus
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there are more than ___ skeletal muscles in the body
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600
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another name for a skeletal muscle cells is
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muscle fiber
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the rectus abdominal muscle is an example of
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parallel muscle
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the rectus abdominal
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parallel muscle
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the bradioradialis muscle
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fusiform muscle
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pectoralis major muscle
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convergent muscle
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soleus muscle
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pennate muscle
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another name for a sphincter muscle
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circular muscle
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most common type of lever in the body is
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third class lever
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moveing from superficial to deep the connective tissue components would be
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epimysium, permysium, endomysium
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latisimus dorsi muscle is
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spiral muscle
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naming location
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brachialis
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naming function
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adductors
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naming shape
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deltoid
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nameing direction of fibers
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rectus
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naming number of heads or divisions
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triceps
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naming points of attachment
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sternocleidomastoid
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buccinator
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creates smile expression
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corrugator supercili
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draw the eyebrows together producing vertical wrinkles
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epicranius
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raise the eyebrows
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orbicularis oculi
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close the eye
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pterygoid
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casues sidewaysmovement during mastication
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sternocleidomastoid
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flex the head prayer muscle
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antagonist
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muscles that directly appose prime movers
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prime movers
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muscles that play the major role in accomplishing a particular movement
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syngergists
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muscles that contract at the same time as the prime mover producing a more effective movement
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fixators
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muscles that help maintain posture of balance during contraction of muscles acting on joints in the arms and leg
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gluteus maximus
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buttocks
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biceps brachii
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upper arm
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trapezius
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back
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pectoralis major
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chest
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adductor magnus
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thigh
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pronator teres
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forearm
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external oblique
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abdominal wall
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deltoid
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shoulder
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sternocleidomastoid
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neck
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gastrocnemius
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leg
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a tube shaped structure of fibrous connective tissue
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tendon sheath
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delicate connective tissue that covers muscle cells
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endomysium
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connective tissue that bonds fascicles together
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perimysium
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tough connective tissue cord connecting muscle to the periosteum of a bone
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tendon
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below the skin it is called superficial surrounding the muscle is called deep
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fascia
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broad flat sheet of tendon like connecive tissue
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aponeurosis
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coarse connective tissue that covers the entire muscle
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epimysium
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groups of skeletal muscle fibers
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fascicles
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