Please complete entire table Muscles of the trunk (anterior): Muscle Origin/Insertion Primary Action Pectoralis minor O:...

Please complete entire table

Muscles of the trunk (anterior):

Muscle	Origin/Insertion	Primary Action
Pectoralis minor	O: ribs I: coracoid process of scapula	Depresses shoulder
Pectoralis major
Internal Intercostal
External Intercostal
External Oblique
Rectus abdominus
Transverse abdominus
Diaphragm
Serratus anterior

Expert Solution

Muscle	Origin	Insertion	Primary action
Pectoralis minor	ribs	Coracoid process of scapula	Depresses shoulder
Pectoralis major	ribs 2-6, sternum, and clavicle	greater tubercle of humerus	flexion, adduction, and medial rotation at shoulder
Internal Intercostal	superior border of each rib	inferior border of each rib	depresses ribs
External Intercostal	inferior border of each rib	superior border of each rib	elevates ribs
External Oblique	ribs 5-12	linea alba and pubis	compresses abdomen, depresses ribs, flexes or bends spine
Rectus abdominus	superior surface of pubis around symphysis	xiphoid process of sternum	depresses ribs, flexes vertebral column, compresses abdomen
Transverse abdominus	cartilage of ribs 6-12, iliac crest	linea alba and pubis	Compresses abdomen
Diaphragm	Lumbar vertebrae of spine & inferior border of ribs and sternum.	Central tendon	Inspiration
Serratus anterior	ribs 1-8	vertebral border of scapula	protracts scapula
Muscle	Origin	Insertion	Primary action
Pectoralis minor	ribs	Coracoid process of scapula	Depresses shoulder
Pectoralis major	ribs 2-6, sternum, and clavicle	greater tubercle of humerus	flexion, adduction, and medial rotation at shoulder
Internal Intercostal	superior border of each rib	inferior border of each rib	depresses ribs
External Intercostal	inferior border of each rib	superior border of each rib	elevates ribs
External Oblique	ribs 5-12	linea alba and pubis	compresses abdomen, depresses ribs, flexes or bends spine
Rectus abdominus	superior surface of pubis around symphysis	xiphoid process of sternum	depresses ribs, flexes vertebral column, compresses abdomen
Transverse abdominus	cartilage of ribs 6-12, iliac crest	linea alba and pubis	Compresses abdomen
Diaphragm	Lumbar vertebrae of spine & inferior border of ribs and sternum.	Central tendon	Inspiration
Serratus anterior	ribs 1-8	vertebral border of scapula	protracts scapula

Sydney Mullin answered 2 years ago

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