muscle practical #1 (name and action)
Infraspinatus A: Laterally rotates humerus, stabilizes shoulder joint
name and action
Latissimus Dorsi A: extends, adducts, medially rotates arm
name and action
Subscapularis A: adducts, medially rotates humerus, stabilizes shoulder joint
name and action
Supraspinatus A: assists abduction, stabilizes shoulder
name and action
diaphragm A: flattens to increase thoracic volume for inspiration
name and action
external intercostals A: elevates ribcage for inspiration
name and action
external oblique A: flexes trunk laterally, compresses abdomen
name and action
frontalis A: elevates eyebrows
name and action
internal intercostals A: depresses ribcage for expiration
name and action
internal oblique A: flexes trunk laterally, compresses abdomen
name and action
masseter A: elevates mandible
name and action
orbicularis oculi A: closes eye
name and action
orbicularis oris A: closes and protrudes lips
name and action
pectoralis major A: flexes, adducts, medially rotates arm
name and action
pectoralis minor A: protracts and depresses scapula
name and action
rectus abdominis A: flexes trunk and compresses abdominal cavity
name and action
rhomboid major A: retracts scapula
name and action
rhomboid minor A: retracts scapula
name and action
serratus anterior A: protracts scapula
name and action
teres major A: extends, adducts, medially rotates arm
name and action
teres minor A: laterally rotates humerus, stabilizes shoulder joint
name and action
transverse abdominis A: compresses abdomen
name and action
trapezius A: Elevates and rotates scapula superiorly, retracts and depresses scapula
name and action
deltoid A: flexes, extends, abducts arm
name n action
Sternocleidomastoid A: Flexes and rotates head
name, action
temporalis A: elevates and retracts mandible
name, action
