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Mink Muscles

Sakina Zehra

Christina Ownbey

Lauren Jedrusiak

Martin Jedrusiak

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Masseter

Origin: Zygomatic arch

Insertion: Masseteric fossa of mandible

Action:Elevates mandible

Human homolog: Masseter

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Temporalis

Origin: Temporal fossa

Insertion: Coronoid process of mandible

Action: Lifts mandible

Human homolog: Temporalis

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Sternomastoid

Origin: Sternum

Insertion: Occiput of the skull

Action: Turns the head

Human homolog: Sternocleidomastoid

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Cleidomastoid

Origin: Clavicle

Insertion: Occiput

Action: Turns the head

Human homolog: Sternocleidomastoid

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Pectoralis major

Origin: Sternum

Insertion: Pectoral ridge of the humerus

Action: Adducts the forelimb

Human homolog: Pectoralis major

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Rectus abdominis

Origin: Pubic tubercle

Insertion: 1st and 2nd costal cartilages and sternum

Action: Compresses abdomen and flexes trunk

Human homolog: Rectus abdominis

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External oblique

Origin: Caudal ribs and lumbodorsal fascia

Insertion: Linea alba

Action: Compresses abdomen and flexes trunk

Human homolog: External oblique

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Internal oblique

Origin: Lumbodorsal fascia and crural ligament between crest of ilium and pelvis

Insertion: Linea alba

Action: Compresses abdomen and flexes trunk

Human homolog: Internal oblique

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Transverse abdominis

Origin: Inner surface of caudal rib cartilage, transverse process of lumbar vertebrae, ilium and crural ligament between ilium and pubis

Insertion: Linea alba

Action: Compresses abdomen and flexes trunk

Human homolog: Transverse abdominis

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Spinotrapezius

Origin: Dorsal midline of thorax

Insertion: Scapular spine

Action: Rotates scapula backwards

Human homolog: Trapezius

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Acromiotrapezius

Origin: Spine of axis to spinous process of 4th thoracic vertebra

Insertion: Acromion process of scapula

Action: Adducts and stabilizes scapula

Human homolog: Trapezius

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Clavotrapezius

Origin: Occiput and dorsal midline of neck

Insertion: Clavicle

Action: Pulls humerus forward

Human homolog: Trapezius

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Acromiodeltoid

Origin: Acromion process of scapula

Insertion: Deltoid ridge and tuberosity of humerus

Action: Pulls humerus forward

Human homolog: deltoid

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Spinodeltoid

Origin: Scapular spine

Insertion: Deltoid ridge of humerus

Action: Abducts the humerus

Human homolog: Deltoid

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Clavodeltoid

Origin: Clavicle

Insertion: Deltoid region of humerus

Action: Pulls the humerus forward

Human homolog: Deltoid

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Latissimus dorsi

Origin: Dorsal fascia of thorax

Insertion: Medial surface of proximal humerus

Action: Pulls humerus backwards

Human homolog: Latissimus dorsi

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Triceps brachii

Origin: Scapula and lateral surface of humerus

Insertion: Olecranon process of ulna

Action: Extends elbow

Human homolog: Triceps brachii

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Biceps brachii

Origin: Coracoid process of scapula

Insertion: Radial tuberosity

Action: Flexes forelimb

Human homolog: Biceps brachii

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Brachialis

Origin: Proximal margin of humerus

Insertion: Lateral surface of ulna

Action: Flexes forearm

Human homolog: Brachialis

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Brachioradialis

Origin: Dorsal border of humerus

Insertion: Styloid process of radius

Action: Supinates paw

Human homolog: Brachioradialis

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Sartorius

Origin: Anterior superior iliac spine

Insertion: By an aponeurosis into medial aspect of proximal tibia

Action: Flexes and laterally rotates thigh, flexes knee

Human Homolog: Sartorius

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Gluteus Maximus

Origin: Fascia over sacrum

Insertion: Lateral surface of femur

Action: Abducts thigh

Human Homolog: Gluteus Maximus

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Gluteus Medius

Origin: Lateral surface of ilium

Insertion: Greater trochanter of femur

Action: Abducts and medially rotates thighs, steadies pelvis during walking

Human Homolog: Gluteus Medius

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Vastus Lateralis

Origin: Anterior surface of femur

Insertion: Tibial crest

Action: Extends leg

Human Homolog: Vastus Lateralis

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Biceps Femoris

Origin: Ischium

Insertion: Lateral surface of knee and leg

Action: Extends thigh and flexes leg

Human Homolog: Biceps Femoris

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Semitendinosus

Origin: Ischium

Insertion: Medial surface of leg

Action: Extends thigh and flexes leg

Human Homolog: Semitendinosus

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Semimembranosus

Origin: Ischium

Insertion: Medial surface of knee and leg

Action: Extends thigh and flexes leg

Human Homolog: Semimembranosus

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Adductor Group

Origin: Pubis

Insertion: Femur

Action: Adducts thigh

Human Homolog: Adductor Longus, Adductor Brevis, Adductor Magnus

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Rectus Femoris

Origin: Ilium

Insertion: Tibial crest

Action: Flexes thigh and extends leg

Human Homolog: Rectus Femoris

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Vastus Medialis

Origin: Medial surface of femur

Insertion: Tibial crest

Action: Extends leg

Human Homolog: Vastus Medialis

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Vastus Intermedius

Origin: Femur

Insertion: Tibial crest

Action: extends knee

Human Homolog: Vastus Intermedius

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Gastrocnemius

Origin: Lateral and medial condyles of femur

Insertion: By the achilles tendon on the calcaneus

Action: Extends foot

Human Homolog: Gastrocnemius

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Soleus

Origin: Lateral surface of the head of fibula

Insertion: By the achilles tendon on the calcaneus

Action: Extends foot

Human Homolog: Soleus

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Tibialis Anterior

Origin: Lateral condyle and upper ⅔ of tibia, interosseous membrane

Insertion: By tendon into inferior surface of first cuneiform and metatarsal (1)

Action: prime mover of dorsiflexion, inverts foot

Human Homolog: Tibialis Anterior

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Extensor Digitorum Longus

Origin: Lateral epicondyle of femur

Insertion: Digits

Action: Extends digits

Human Homolog: Extensor Digitorum Longus