Human Anatomy Muscles of the Cat

Acromiotrapezius

Acromiotrapezius

Origin: Spines of cervical vertebrae Insertion: Scapular spine Action: Elevate and adduct scapula

Spinotrapezius

Origin: Spines of thoracic vertebra Insertion: Scapular fascia Action: Elevate and Retract scapula

Clavotrapezius

Origin: Occipital and mid-dorsal raphe Insertion: Clavicle and clavobrachialis Action: Flex humerus and rotate scapula

Clavobrachialis

Origin: Clavicle Insertion: Ulna Action: Abduct and rotate arm

Acromiodeltoid

Origin: Acromion Process Insertion: Humerus Action: Flex and rotate humerus

Spinodeltoid

Origin: Spine of scapula Insertion: Humerus Action: Elevate, rotate, and extend humerus

Latissimus Dorsi

Origin: Thoracic and lumbar neural spines Insertion: Median humerus Action: Adduct, rotate, and extend humerus

Levator scapulae ventralis

Origin: occipital bone Insertion: Acromion process Action: draw scapula forward

Supraspinatus

Origin: Supraspinous Fossa Insertion: Humerus Action: Extend humerus

Infraspinatus

Origin: Infraspinous fossa Insertion: Humerus Action: Rotate humerus

Teres Major

Origin: Axillary boarder of scapula Insertion: Medial humerus Action: Elevate, rotate, and extend humerus

Teres minor

Origin: Lateral border of scapula Insertion: Greater tuberosity of humerus Action: Extend Humerus

Rhomboideus

Origin: Upper thorasic vertebrae Insertion: Scapular boarder Action: Rotate scapula, elevate ribs

Rhomboideus capitis

Origin: Upper thoracic vertebra Insertion: Scapular border Action: Rotate scapula, elevate ribs

Longissimus dorsi

Origin: Sacral and caudal vertebra Insertion: Anterior transvers processes Action: Extend and turn trunk

Multifidus spinae

Origin: lumbar transverse processes Insertion: Anterior neural spine Action: Extend and turn trunck

Biceps brachii

Origin: Scapula near glenoid fossa Insertion: radius Action: flex arm and forearm

Triceps Brachii ( Long, Lateral, and Medial Head)

Origin: Scapula and shaft of humerus Insertion: Olecranon process of ulna Action: Extend arm

Anconeus

Origin: distal humerus Insertion: Olecranon process Action: Extend arm

Brachialis

Origin: shaft of humerus Insertion: Ventral ulna Action: Flex arm

Pectoralis major

Origin: Cranial sternebrae Insertion: Humerus Action: Adduct and rotate humerus

Pectoralis minor

Origin: sternum Insertion: Humerus Action: Adduct and rotate humerus

Xiphihumeralis

Origin: Xiphoid Insertion: Humerus Action: Adduct and rotate humerus

External Abdominal oblique

Origin: Lumbdorsal fascia and ribs Insertion: Aponeurosis Action: Compress viscera

Rectus abdominis

Origin: Pubis Insertion: Sternum Action: Flex trunk compress viscera

Biceps Femoris

Origin: Ischium Insertion: Tibia Action: Adduct femur, flex tibia

Gluteus Maximus

Origin: sacral and caudal vertebra Insertion: Femur Action: Abduct femur

Gluteus Medius

Origin: Illium Insertion: Femur Action: Abduct femur

Sartorius

Origin: Illium Insertion: Tibia Action: Adduct femur, rotate femur laterally, and extend tibia

Gracilis

Origin: Ischium and pubic symphysis Insertion: Tibia Action: Adduct and flex tibia

Semimembranosus

Origin: Ischium Insertion: Femur and tibia Action: Extend femur

Adductor femorus

Origin: Ischium and pubis Insertion: Femur Action: Adduct femur

Iliopsoas

Origin: Lumbar vertebra and ilium Insertion: Iliac fossa and lumbar vertebra Action: Flex thigh

Gastrocnemius

Origin: femoral epicondyles Insertion: Calcaneus Action: Extend foot, flex knee

Soleus

Origin: Fibular head Insertion: calcaneus Action: Extend foot

Plantaris

Origin: Patella Insertion: Calcaneus Action: Extend foot, flex knee