Term
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Definition
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Term
| occipital body of occiptofrontalis |
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Definition
| retracts scalp at base of skull |
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Term
| frontal belly of occipitofrontalis |
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Definition
| moves scalp, wrinkles skin of forehead, raises eyebrows |
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Term
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Definition
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Term
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Definition
| compresses and purses lips, puckers lips; closes mouth / kiss |
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Term
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Definition
| tenses skin of neck; shaving muscle |
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Term
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Definition
| elevates and retracts the mandible |
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Term
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Definition
| lines inside of cheeks, keeps food in your mouth |
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Term
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Definition
| prime mover of jaw closure; chewing --> can become enlarge |
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Term
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Definition
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Term
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Definition
| pulls tongue in; stability muscle because it is attached to the hyoid |
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Term
| digastric, mylohyoid, stylohyoid, geniohyoid |
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Definition
| suprahyoid muscles that elevates the hyoid bone |
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Term
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Definition
| active when you open your mouth really wide (more than gravity would) |
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Term
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Definition
| providing support; elevates floor of mouth |
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Term
| sternohyoid, thyrohyoid, sternothyroid, omohyoid |
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Definition
| infrahyoid muscles: supportive muscles that help support hyoid and tongue; depresses hyoid bone |
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Term
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Definition
unilateral action: lateral flexion to the same side; rotation of head to opposite side (if you activate one)
bilateral action: flexes neck (if you activate both) |
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Term
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Definition
comes off bones of vertebral column and attaches to mastoid
unilateral action: turns head to the same side
bilateral action: extends head / neck |
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Term
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Definition
| work with sternocleidomastoid to flex neck; elevate ribs 1 & 2 during forced inhalation |
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Term
| erector spinae (3 muscles) |
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Definition
start from sacrum, attach to different points on ribs, go all the way to the neck
predominanly slow fibers-- don't fatigue
holds extension of the back (maintains posture) |
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Term
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Definition
when working alone, laterally flex to the same side
when working together help extend vertebral column |
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Term
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Definition
angled down towards midline
contract --> expand rib cage --> inspiration (inhalation) --> FORCED inspiration (running) |
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Term
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Definition
deep to external and run in perpendicular pattern
depress the ribs --> FORCED expiration |
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Term
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Definition
dome-shaped muscle that forms a partition between the thoracic and abdominopelvic cavities
when it contracts, it pulls lungs down, and brings air in
blowing air out = diaphragm not active |
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Term
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Definition
compress abdomen, giving increased pressure in the thorax, helping to force air out
external obliques, internal obliques, rectus abdominis, transversus abdominis
when all work together, compress abdomen and flex vertebral column |
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Term
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Definition
lateral flexion of vertebral column and rotation to opposite side
start high laterally, finish low medially (direction of hands in pockets) |
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Term
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Definition
deep and at right angles to external
lateral flexion of vertebral column and rotation to same side |
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Term
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Definition
| flexion of vertebral column and compression of abdominal wall; 6 pack abs |
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Term
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Definition
| lateral flexion to the same side; deepest of abdominal muscles |
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Term
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Definition
large muscle that extends from middle of back to spine of scapula laterally to back of head
elevates, rotates, and retracts scapula
flexes and extends neck
shrugs shoulders |
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Term
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Definition
parallelogram muscles
retract scapula; tip scapula downward (rotate it down) |
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Term
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Definition
narrow, elongated muscle
elevates scapula; helps shrug shoulders with trapezius |
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Term
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Definition
thin, flat, triangular muscle deep to pectoralis major; ribs to coracoid process
protracts and depresses scapula |
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Term
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Definition
comes off medial border of scapula on anterior surface, attaches onto ribs
scapula protraction primarily; helps hold scapula towards rib cage; draws it forward |
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Term
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Definition
thick, powerful muscle
abducts, flexes, and extends arm
anterior fibers: flex arm
middle fibers: prime movers of arm abduction
posterior fibers: extend arm |
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Term
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Definition
large, thick, fan-shaped muscle covering superior thorax
prime mover of arm flexion
adducts arm |
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Term
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Definition
| weak arm flexor, but it is all it does |
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Term
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Definition
2 headed muscle on anterior surface of humerus
flexes forearm; flexes arm
crosses shoulder joint; acts on elbow joint and flexion of elbow joint
attaches radius and pulls it into supination |
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Term
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Definition
broad, triangular shaped muscle on inferior part of back; swimmer's muscle
arm extension primarily, but also adduction
important for pull-ups |
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Term
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Definition
| arm adduction primarily, but also arm extension |
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Term
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Definition
subscapularis, supraspinatus, infraspinatus, teres minor
critical for overhead motion (throwing)
1. provide large amount of stability
2. slowing down arm after going through a really fast rotational movement (pitching) |
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Term
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Definition
| winding up a pitch; medially rotates arm; anterior surface |
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Term
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Definition
| starting to execute the pitch; beginning of arm abduction |
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Term
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Definition
| helps slow down arm after completing the pitch; adducts and laterally rotates the arm |
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Term
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Definition
| helps slow down arm after completing pitch; adducts and laterally rotates arm |
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Term
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Definition
deep to biceps brachii
primary flexor of forearm at elbow |
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Term
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Definition
distal muscle -- distal end of humerus to wrist
flexes forearm (weak)
lets your hold a frosty mug of root beer |
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Term
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Definition
3 headed muscle that crosses the glenohumeral joint
primary extensor of forearm
also extends and adducts arm |
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Term
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Definition
posterior origin; attaches to radius and wraps around it
supinates forearm |
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Term
| pronator teres & pronator quadratus |
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Definition
| anterior forearm muscles; pronates forearm; deep and pull into pronation |
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Term
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Definition
crosses wrist and attaches to radial side of thumb
ABDUCTS the hand at the wrist |
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Term
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Definition
comes to the ulnar / pinky side
ADDUCTS the hand at the wrist |
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Term
| flexor digitorum superficialis |
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Definition
large muscle
extends tendons and fingers 2-5 and flexes them |
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Term
| flexor digitorum profundus |
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Definition
deep to flexor digitorum superficialis
flexes wrist, 2nd-5th MP joints |
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Term
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Definition
band of tissue on palm up side holding down tendons
forms carap tunnel |
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Term
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Definition
| extends wrist; extends tendons to fingers 2,3,4 |
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Term
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Definition
| band of connective tissue palm side down |
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Term
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Definition
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Term
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Definition
| adducts thumb; extends thumb |
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Term
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Definition
| at the base of the thumb; bulgy part on plam before thumb |
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Term
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Definition
| hypothenar eminence going to pinky |
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Term
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Definition
muscles in palm of hand; come off flexor tendon
help flex fingers |
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Term
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Definition
deepest muscles
ADDUCTS fingers (PAD = palmar adduct) |
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Term
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Definition
deepest muscles
ABDUCTS fingers (DAB = dorsal abduct) |
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Term
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Definition
comes off vertebral column and attaches to femur
flexes hip |
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Term
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Definition
comes off iliac crest and attaches to femur
flexes hip |
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Term
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Definition
adducts the thigh
brings femur back towards midline |
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Term
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Definition
runs from pubis to tibia; crosses multiple joints
helps adduct thigh
flexes knee
flexes thigh |
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Term
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Definition
deep to gluteus maximus
powerful abductor of the thigh |
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Term
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Definition
connects to lateral side of knee, snapping at knee or greater trochanter of femur
buried in long band of connective tissue (IT band)
ABDUCTION of the thigh |
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Term
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Definition
largest of 4 gluteal muscles
major hip extensor; also lateral rotation of thigh |
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Term
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Definition
collectively flex the knee
semitendinosus, semimembranosus, biceps femoris |
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Term
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Definition
2 headed muscle that inserts on lateral side of leg
extension of hip |
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Term
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Definition
random muscle, not paired
superficial muscle that is important in rotating tibia (medially)
makes knee more stable |
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Term
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Definition
flexes hip and knee; laterally rotates thigh
when you cross your legs |
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Term
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Definition
all use quadriceps (patellar) tendon; attach to tibial tuberosity
EXTEND KNEE; most powerful muscle in body
rectus femoris, vastus lateralis, vastus medialis, vastus intermedius |
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Term
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Definition
| central quadricep and only one that crosses the hip joint, so can help with some flexion |
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Term
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Definition
lateral to crest running down shin
primary dorsiflexor of the foot at ankle |
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Term
| extensor digitorum longus |
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Definition
4 long tendons to attach to dorsal surface of toes 2-5
extends toes; dorsiflexes foot |
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Term
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Definition
extends big toe
dorsiflexes foot |
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Term
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Definition
most superficial muscle on the superficial posterior compartment of the leg
plantar flexes foot
crosses back side of knee and flexes knee
achilles tendon |
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Term
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Definition
broad, flat muscle deep to gastrocnemius
plantar flexes foot
does not cross knee, so does not flex it |
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Term
| fibularis longus and fibularis brevis |
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Definition
work together for plantar flexion (pointing toe or standing on toe) and attach to outside of ankle
eversion (draw ankle out) ***
want to evert foot, but most active when rolling ankle in (eccentric) |
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Term
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Definition
| attaches to distal phalanges of toes 2-5; plantar flexion of foot |
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Term
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Definition
| deepest of posterior compartment muscles; plantar flexion of foot |
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Term
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Definition
| plantar flexion of foot and flexes the great toe |
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Term
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Definition
| supports the plantar surface of the foot |
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