Muscle 1
Terms
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Vastus intermedius
underneath femoris - O:lateral femur I: tibial tuberosity A: extend leg
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Pectoralis major
chest muscle - O:Clavicle and body of sternum I:greater tubercle of the humerus A: flex arm
- Thin myofillimants
- made of actin protein and are seen as light bands
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Deltoid
shoulder pad - O:clavicle I:deltoid tuberosity of the humerus A:abduct humerus
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Extensor digitorum
back of forearm - O:lateral epicondyle of humerus I:distal phalanges 2-5 A:extend fingers
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Latissimus dorsi
superficial big back - O:spinus process of T 7-12 and all L 1-5 I:Lesser tubercle of humerus A:adduct arm
- extensor carpi radialis
- O:lateral epicondyle of humerus I:base of metacarpals 2-3 A:abducts hand
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Brachialis
under biceps on arm - O:Humerus I:coranoid process of ulna A:flex forearm
- Sacroplasm
- the cytoplasm of muscle cells
- Internal intercostals
- O:Superior border of a rib I:inferior border of the previous rib A:depress the ribs
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Tibialis anterior
front of leg - O:lateral condyle of tibia I: metatarsal 1 A:Dorsiflex foot (toes up)
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Orbicularis oculi
around th eye - O:Medial margin of orbit I:eyelids A:close eyes
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Vastus lateralis
lateral side of thigh - O:linear aspen of femur I:tibial tuberosity A: extend leg
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Pectoralis minor
anterior chest under p.major - O:anterior surface of ribs 3-5 I:coracoid process of scapula A:depress shoulder
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External oblique
stomach hands in pockets - O:ribs 5-12 I:lina alba A:compression of abdomen
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Triceps brachi
posterior surface of arm - O:Humerus I:Olecramon process of ulna A:extend forearm
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Gastrocnemius
big on back of leg - O:medial condyle of femur I: calcaneous A: plantar flex foot
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Buccinator
deep on face - O: Alveolar process of maxilla I: orbicocmisors A: compress the cheek
- Thick myofiliments
- composed of myosin protein and are seen as dark bands
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Trapezius
triangle on the back - O:spinus process of thoracic vertebrae I:spine of scapula A:elevate shoulder
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Rectus femoris
straight up and down leg - O:anterior inferior illiac spine I:tibial tuberosity A: exrend leg
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External intercostals
orientated as if hands going into pockets - O:Inferior border of a rib I: superior border of the next rib A: elevates the ribs
- Gluteus maximus
- O:sacrum I:gluteral tuberosity of femur A: extend thigh
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Masseter
in cheek - O:Zygomatic arch I:Lateral surface of mandible A:elevate mandible
- flexor carpi ulnaris
- O:medial epicondyle of humerus I:base of metacarpal 5 A:adduct hand
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Sternocleidomastoid
anterior of neck - O:Manubrium I:Mastoid process of temperal bone A:flex neck
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Internal oblique
opposite direction of external oblique - O:illiac crest I:Lina alba A: compression of abdomen
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Brachioradialis
back of forearm - O:lateral epicondyle of humerus I:styloid process of radius A: flex forearm
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Rectus abdominis
6 pack - O:Pubic symphosis I:zyphoid process A:flex vertebral column
- Biceps brachi
- O:coracoid process of scapula I:radial tuberosity A:flex and supinate arm
- Sacromere
- individual contactual unit measured from Z-line to Z-line
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Orbicularis oris
circles around the mouth - O: Maxilla I: Lips A: Purse lips
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Gracilis
inside of thigh - O:ischium I:medial condyle of tibia A: adduct thigh
- Gluteus medius
- O:illium I:greater trochanter of femur A:medial rotate thigh
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Transverse abdominis
back and forth direction - O:cartilage of ribs 7-12 I:pubis A:compress abdomen
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Semimembranosus
most medial - O:ischial tuberosity I: medial condyle of tibia A: extend thigh
- Intercalated DIsc
- gap junction of tubes connecting sacrolemma of cardiac muscles
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Ilipsoas group
inside of thigh - O:lumbar vertebrae I:lesser trochanter A; flex thigh
- Sarcolemma
- the cell membrane of muscle cells (fibers)
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Biceps femoris
most lateral - O:ischial tuberosity I:lateral condyle of tibia A:flex leg
- extensor carpi ulnaris
- O:lateral epicondyle of humerus I:base of metacarpal 5 A: adduct hand
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Flexor digitorum superficialis
front of forearm - O:medial epicondyle of humerus I:middle phalanges A: flex fingers
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Sartorius
most superficial strap - O:anterior superior illiac creast I: medial aspect of proximal tibia A:lateral rotate leg
- Axon terminal
- is where the telodendria branches out into the different myoneural junction
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Vastus medialis
medial side of the thigh - O:linear aspen of femur I:tibial tuberosirty A; extend leg
- Flexor carpi radialis
- O:medial epicondyle humerus I:base of metacarpals 2-3 A:abduct hand
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Semitendinosus
long tendion superficial - O:ischial tuberosity I:tibia A:extend thigh