Mink Origin, Insertion, and Function Flashcards by Jacob Dickman

masseter

Origin: Zygomatic arch
Insertion: Masseteric fossa of mandible
Function: elevates mandible

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Mylohyoid

Origin: medial surface of mandible
Insertion: basihyal (meets adjacent muscle at midline)
Function: raises floor of mouth

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Digastric

Origin: Paraoccipital process and mastoid process
Insertion: ventral surface of mandible
Function: depresses mandible

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Genioglossus

Origin: mandibular symphysis
Insertion: tongue
Function: manipulates tongue

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Geniohyoid

Origin: mandibular symphysis
Insertion: hyoid apparatus
Function: pulls tongue and hyoid forward

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Hyoglossus

Origin: lateral aspect of hyoid
Insertion: tongue
Function: manipulates tongue

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styloglossus

Origin: hyoid apparatus
Insertion: tongue
Function: manipulates tongue

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Sternohyoid

Origin: Cartilage of first rib
Insertion: Basihyal
Function: pulls tongue backward

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Thyrohyoid

Origin: Basihyal (= boyd of hyoid apparatus)
Insertion: Thyroid cartilage of larynx
Function: Raises larynx

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Sternomastoid

Origin: Sternum
Insertion: Occiput
Function: turns head

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clavotrapezius

Origin: occiput and dorsal midline of neck
Insertion: clavical
Function: pulls humerus forward

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pectoralis major

Origin: sternum
Insertion: pectoral ridge of humerus
Function: adducts forelimb

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Pectoralis minor

Origin: sternum
Insertion: pectoral ridge of humerus
Function: adducts forelimb

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Sternothyroid

Origin: cartilage of first rib
Insertion: thyroid cartilage of larynx
Function: pulls larynx backward

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cleidomastoid

Origin: clavicle
Insertion: occiput
Function: turns head

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temporalis

Origin: temporal fossa
Insertion: coronoid process of mandibule
Function: lifts mandible

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acromiotrapezius

Origin: Sprine of axis to spinous process of 4th thoracic vertebra
Insertion: acromion process of scapula
Function: adducts and stabilizes scapula

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Spinodeltoid

Origin: scapular spine
Insertion: deltoid ridge of humerus
Function: abducts humerus and humerus forward

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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