Mink Origin, Insertion, and Function Flashcards
masseter
Origin: Zygomatic arch
Insertion: Masseteric fossa of mandible
Function: elevates mandible
Mylohyoid
Origin: medial surface of mandible
Insertion: basihyal (meets adjacent muscle at midline)
Function: raises floor of mouth
Digastric
Origin: Paraoccipital process and mastoid process
Insertion: ventral surface of mandible
Function: depresses mandible
Genioglossus
Origin: mandibular symphysis
Insertion: tongue
Function: manipulates tongue
Geniohyoid
Origin: mandibular symphysis
Insertion: hyoid apparatus
Function: pulls tongue and hyoid forward
Hyoglossus
Origin: lateral aspect of hyoid
Insertion: tongue
Function: manipulates tongue
styloglossus
Origin: hyoid apparatus
Insertion: tongue
Function: manipulates tongue
Sternohyoid
Origin: Cartilage of first rib
Insertion: Basihyal
Function: pulls tongue backward
Thyrohyoid
Origin: Basihyal (= boyd of hyoid apparatus)
Insertion: Thyroid cartilage of larynx
Function: Raises larynx
Sternomastoid
Origin: Sternum
Insertion: Occiput
Function: turns head
clavotrapezius
Origin: occiput and dorsal midline of neck
Insertion: clavical
Function: pulls humerus forward
pectoralis major
Origin: sternum
Insertion: pectoral ridge of humerus
Function: adducts forelimb
Pectoralis minor
Origin: sternum
Insertion: pectoral ridge of humerus
Function: adducts forelimb
Sternothyroid
Origin: cartilage of first rib
Insertion: thyroid cartilage of larynx
Function: pulls larynx backward
cleidomastoid
Origin: clavicle
Insertion: occiput
Function: turns head
temporalis
Origin: temporal fossa
Insertion: coronoid process of mandibule
Function: lifts mandible
acromiotrapezius
Origin: Sprine of axis to spinous process of 4th thoracic vertebra
Insertion: acromion process of scapula
Function: adducts and stabilizes scapula
Spinodeltoid
Origin: scapular spine
Insertion: deltoid ridge of humerus
Function: abducts humerus and humerus forward
spinotrapezius
Origin: dorsal midline of thorax
Insertion: scapular spine
Function: rotates scapula backwards
latissimus dorsi
Origin: dorsal fascia of thorax
Insertion: medial surface of proximal humerus
Function: pulls humerus backward
Dorsoepitrochlearis
Origin: Latissimus Dorsi and teres major
Insertion: Ulna
Function: extends elbow
Triceps, Long head
Origin: Humerus
Insertion: olecranon process (Ulna)
Function: Extends elbow
Triceps, Lateral head
Origin: deltoid ridge of humerus
Insertion: olecranon process (Ulna)
Function: extends elbow
Brachialis
Origin: humerus
Insertion: ulna
Function: flexes elbow
Rhomboideus complex
Origin: Spines of the first 4 thoracic vertebrae and occiput
Insertion: Vertebral border of Scapula
Function: Adducts scapula and pulls it cranially
Atlantoscapularis
Origin: Atlas
Insertion: Scapula
Function: Pulls scapula forward
Levator scapulae ventralis
Origin: Atlas
Insertion: scapula
Function: Pulls scapula forward
Acromiodeltoid
Origin: Acromion process of scapula
Insertion: Deltoid ridge and tuberosity of Humerus
Function: pulls humerus forward
Splenius
Origin: Spine of first thoracic vertebrae
Insertion: Lambdoidal ridge of SKULL
Action: elevates the head
Triceps, medial head
Origin: Axillary border of scapula
Insertion: Olecranon process (ulna)
Function: Extends forearm
Brachioradialis
Origin: humerus
Insertion: Styloid process of radius
Function: Supinates paw
Extensor carpi radialis longus
Origin: lateral epicondyle of humerus
Insertion: 2nd and 3rd metacarpals
Function: extends carpus (wrist)
Extensor digitorum communis
Origin: Lateral epidcondyle of humerus below extensor carpi radialis
Insertion: Phalanges of digits 2-5
Extends joints of digits 2-5
Extensor digitorum lateralis
Origin: Anterior face of lateral epicondyle of humerus
Insertion: Digits 3-5
Function: extends 4th and 5th digits
extensor carpi ulnaris
Origin: Lateral epicondyle of humerus
Insertion: Tubercle of 5th metacarpal
Function: extends carpus, rotates wrist laterally
abductor pollicis longus
Origin: lateral surface of ULNA and distal surface of RADIUS
Insertion: radial side of 1ST METACARPAL
Function: extends and abducts pollex
Flexor carpi ulnaris
Origin: Medial epicondyle of HUMERUS and olecranon of ULNA
Insertion: accessory Carpal bone
Insertion: Flexes carpus
Flexor digitorum superficialis
Origin: medial epicondyle of humerus and flexor digitorum profundus
Insertion: Middle phalanx of digits 2-5
Action: Flexes proximal and middle joints of digits 2-5
Flexor digitorum profundus (radial head and humeral head)
Origin: Medial surface of ulna, meidal epicondyle of humerus and meidal surface of ulna shaft
Insertion: Bases of distal phalanges
Function: flexes all digits
Extensor carpi radialis brevis
Origin: Lateral epicondyle of humerus
Insertion: 3rd metacarpal
Action: extends paw
Biceps brachii
Origin: Cranial edge of coracoid process of SCAPULA
Insertion: Bicipital tuberosity of RADIUS
Function: Flexes forelimb
Pronator teres
Origin: Medial epicondyle of humerus
Insertion: medial border of radius
Function: pronates paw
flexor carpi radialis
Origin: medial epicondyle of humerus
Insertion: 2nd and 3rd metacarpals
Function: Flexes wrist
Serratus dorsalis
Origin: Spinous process of vertebrae
Insertion: Outer surface of first nine ribs
Function: Raises ribs, enlarges thoracic cavity
Seratus ventralis
Origin: ribs
Insertion: Dorsal edge of scapula
Function: depresses scapula
External abdominal oblique
Origin: Caudal ribs and lumbodorsal fascia
Insertion: Linea alba
Function: Compresses abdomen and flexes trunk
