Forelimb Muscles

What is the origin of the clavotrapezius

occipital bone of skull and spines of cervical vertebrae

What is the insertion of the clavotrapezius

clavicle

What is the action of the clavotrapezius

elevates the clavicle

What is the origin of the acromiotrapezius

cervical vertebrae

What is the insertion of the acromiotrapezius

metacromion process and spine of scapula

What is the action of the acromiotrapezius

retract and adduct the scapulae to hold the scapulae together

What is the origin of the spinotrapezius

spines of thoracic vertebrae

What is the insertion of the spinotrapezius

scapular spine

What is the action of the spinotrapezius

pulls scapula back and caudal

What is the origin of sternocleidomastoid

sternum and clavicle

What is the insertion of the sternocleidomastoid

mastoid process of temporal bone

What is the action of the sternocleidomastoid

neck flexion and rotation

What is the origin of the levator scapulae

transverse processes of C1-C4

What is the insertion of the levator scapulae

medial border of scapula

What is the action of the levator scapulae

elevates scapula

What is the origin of the rhomboideus

spinous processes of vertebrae C7-T5

What is the insertion of the rhomboideus

medial border of scapula

What is the action of the rhomboideus

retracts and rotates scapula

What is the origin of the serratus ventralis

ribs

What is the insertion of the serratus ventralis

medial border of scapula

What is the action of the serratus ventralis

support trunk and depress scapula

What is the origin of the latissimus dorsi

spinous processes of the thoracic and lumbar processes

What is the insertion of the latissimus dorsi

intertubercular sulcus of humerus

What is the action of the latissimus dorsi

extends, adducts, and medially rotates humerus

What is the origin of teres major

inferior angle of scapula

What is the insertion of the teres major

intertubercular groove of humerus

What is the action of the teres major

adducts and medially rotates arm

What is the origin of the subscapularis

subscapular fossa of scapula

What is the insertion of the subscapularis

lesser tubercle of humerus

What is the action of the subscapularis

medial rotates and stabilizes forelimbs

What is the origin of the deltoideus

clavicle, acromion, spine of scapula

What is the insertion of the deltoideus

deltoid tuberosity of humerus

What is the action of the deltoideus

abduction, flexion, extension, rotates humerus

What is the origin of the suprascapularis

scapula

What is the insertion of the suprascapularis

greater tubercle of humerus

What is the action of the suprascapularis

abduction of arm

What is the name of the suprascapularis in reptiles, amphibians, fish

suproacoracodeus, supracoracoideus, adductor

What is the clavo, acromio, and spinotrapezius called in reptiles, amphibians, and fish

trapezius, protractor pectoralis, adductor pectoralis

What is the sternocleidomastoid called in reptiles, amphibians, and fish

sternocleidomastoid, protractor pectoralis, adductor pectoralis

What is the rhomboideus known as in reptiles, amphibians, and fish

serratus anterior, serratus anterior, epaxial muscle group

What is the serratus ventralis known as in reptiles, amphibians, and fish

serratus anterior, serratus anterior, epaxial muscle group

What is the teres major known as in reptiles, amphibians, fish

subcorascapularis, subcorascapularis, expaxial group

What is the subscapularis known as in reptiles, amphibians, and fish

subcorascapularis, subcorascapularis, expaxial

What is the origin on the forearm extensors

posterior radius and ulna

What is the insertion of the forearm extensors

carpals

What is the action of the forearm extensors

to extend

What is the insertion of the triceps

olecranon process of ulna

What is the origin of the triceps

scapula and humerus

What is the action of the triceps

extends forearm

What is the supraspinatus in reptiles, amphibians, and fish

supracoracoideus, supracoracoideus, adductor

What is the origin of the infraspinatus

infraspinous fossa of scapula

What is the infraspinatus called in reptiles, amphibians, and fish

supracoracoideus, supracoracoideus, adductor

What is the insertion of the biceps brachii

radius

What is the origin of the biceps brachii

scapula

What is the action of the biceps brachii

flexes elbow and supinates forearm

What is the biceps brachii called in reptiles, amphibians, fish

biceps brachii, humerobrachialis, abductor

What is the origin of the coracobrachialis

coracoid process

What is the insertion of the coracobrachialis

anteriomedial shaft of humerus

What is the action of the coracobrachialis

Adducts the forelimb

What is the. name of the coracobrachialis in reptiles, amphibians, and fish

coracobrachialis, coracobrachialis, adductor

What is the origin of the forearm flexors

anterior radius and ulna

What is the insertion of the forearm flexors

carpals

What is the action of the forearm flexors

flex wrist

What is the name of the forearm flexors in reptiles, amphibians, and fish

forearm flexors, forearm flexors, abductors