muscles pt 2 Flashcards
(20 cards)
Trapezius
Origin: occipital bone
Insertion: Clavicle and acromion and spine of scapula
Action: retracts/elevates/stabilizes scapula
Rhomboid (major & minor)
Origin: spinous process
Insertion: medial border of scapula
Action: retracts/stabilize scapula
Levator scapulae
Origin: Transverse process of c1-c4
Insertion: medial border of scapula
Action: elevates/retracts scapula
Latissimus dorsi
Origin: Vertebrae
Insertion: Intertubercular sulcus of humerus
Action: Extends humerus
lliocastalis
Origin: iliac crests
Insertion: ribs
Action: extend & laterally flex vertebral column
Longissimus
Origin: transverse processes lumbar to cervical vertebrae
Insertion: transverse process
Action: extend & laterally flex vertebral column
Spinalis
Origin: spinous process
Insertion: spinous process of vertebrae
Action: extend & laterally flex vertebral column
Gluteal
Origin: ilium
Insertion : femur
Action : adducts & rotates thigh
illiopsoas
Insertion: femur
Action: flexes thigh toward trunk
Quadriceps
Rectus femoris
Origin: illium
Vastus
Origin: femur
Insertion: patella (all)
Action: extends knee
Hamstrings
Origin: ishial tuberosity
Insertion: tibia
Action: extends thigh
Adductor group
Origin: pubis
Insertion: femur
Action: adducts hip
Pectoralis major
(Superficial)
Origin: sternum
Insertion: humerus
Action: flexes, adducts, medially rotates humerus
Pectoralis minor
(Deep)
Origin: ribs
Insertion: scapula
Action: draws scapula foward and downward
Serratus anterior
(Deep)
Origin: ribs
Insertion: scapula
Action: protract scapula
Transverse
(Deep deep)
Origin: illiac crest
Insertion: linea alba
Action: compresses abdominal content
Bicep brachii
Origin: glenoid cavity
Insertion: radial tuberosity
Action:flexes elbow
Brachioradialis
Origin: humerus
Insertion: radial styliod
Action: flexes elbow
Tricep brachii
Origin: glenoid cavity
Insertion: olecranon
Action: extends elbow
Pronator quadratus
Origin: ulna
Insertion: raduis
Action: pronates forearm
