upper arm muscles Flashcards
6 muscles that attach the scapula to the thorax
- trapezius
- levator scapulae
- rhomboidus major/minor
- serratus anterior
- pectoralis minor
levator scapulae movement
elevates, retracts and rotates scapula
laterally flexes the neck
pectoralis MINOR movement
depresses scapula
or elevates ribs
Rhomboideous MAJOR movement
retracts, rotates and fixes scapula
Rhomboideous MINOR movement
retracts, slightly elevates, rotates and fixes scapula
seratous anterior movement
rotates and PROtracts scapula
elevates ribs
trapizieus movement
extends neck
elevates, depresses, retracts rotates and fixes scapula
muscles that attach arm to thorax
- pectoralis major
- Latissimus dorsi
- deltoid
- rotator cuff
rotator cuff muscles function
move arm and hold head of humerous in glenoid cavity
form cup/cap over proximal humerous
rotator cuff muscles movements
flexion, extension, abduction and adduction, rotation and circumduction
4 rotator cuff muscles
- infraspinitous
- subscapularis
- suprspinitous
- teres minor
pectoralis major movement
flexes and extends shoulder
ADDucts and medial rotates arm
latssimus dorsi movement
EXTENDS shoulder
ADDucts and medially rotates arm
muscles of flexion 4
- Deltoid
- pectoralis major
- corachobrachiallis
- biceps brachii
muscles of extension 5
- Deltoid
- pectoralis major
- teres major
- Latissiumus dorsi
- triceps brachi
muscles of ABduction 2
- deltoid
- supraspinitous
muscles of ADDuction 6
- pec major
- latissimus dorsi
- teres major
- teres minor
- triceps brachi
- corachobrachiallis
muscles of medial rotation 5
- pec major
- teres major
- latissmus dorsi
- deltoid
- subsacpularis
muscles of lateral roation 3
- deltoid
- infraspinitous
- teres minor
extension of elbow
tricep brachii
acunoeus
prime move of elbow flexion is
brachiallis
assist in elbow flexion
- biceps brachii
- brachioradialis
muscles that supinate
supinator
biceps brachii
muscles that pronate
pronator quadratus
pronator teres
flexion of wrist mainly caused by (2)
flexor carpi radialis and flexor carpi ulnaris
extension of wrist (3)
extensor carpis radilis longus, extensor carpis radialis brevis, extensor carpis ularis
Deltoid action
flexion, extension shoulder
abd, medially and lateral rotation
corachobrachiallis action
flexion
Adduction
Infraspinitous movement
laterally rotation
Supraspinitous Action
Abduction
Teres minor Action
laterally rotation and Adduction
subscapularis action
medial rotation
Teres major action
extension, adduction, medial rotation