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Cat Muscles

Anatomy of Cat, Muscles

QuestionAnswer
Masseter Elevates mandible. Origin: Zygomatic arch & maxilla. Insertion: Angle & ramus of mandible. SAME in humans
Diagastric Depressor of mandible. Origin: Lower margin of mandible & mastoid process. Insertion: Hyoid bone (by connective tissue loop). SAME in humans
Mylohyoid Raises floor of mouth. Origin: Medial surface of mandible. Insertion: Hyoid bone & mediam raphe. SAME in humans
Clavotrapezius Draws clavicle dorsally & anteriorly. Origin: Scapula. Insertion: Clavicle. TRAPEZIUS in humans
Pectoantebrachialis Adducts arm. Origin: Manubrium. Insertion: Forearm. CAT ONLY
Pectoralis Major Adducts humeris. Origin: Sternum. Insertion: Humerus. SAME in humans
Pectoralis Minor Adducts humeris. Origin: Anterior surface of ribs 3-5. Insertion: Coracoid process of scapula. SAME in humans
Xiphihumeralis Adducts humerus. Origin: Xiphoid process. Insertion: Humeris. CAT ONLY
Serratus Ventralis Pulls the scapula toward the sternum. Origin: Cervical vertebrae & ribs. Insertion: Scapula. SERRATUS ANTERIOR in humans
External Oblique Constricts abdomen. Origin: Anterior surface of last 8 ribs. Insertion: Binea alba, pubic crest & tubercles, & illiac crest. SAME in humans
Transverse Abdominus Compresses abdomen. Origin: Inguinal ligament, illiac crest, cartilages of last 5-6 ribs, lumbar fascia. Insertion: Linea alba & pubic crest. SAME in humans
Internal Oblique Compresses abdomen. Origin: Lumbar fascia, illiac crest, & inguinal ligament. Insertion: Linea alba, pubic crest & cartilages of last 3 ribs. SAME in humans
Rectus Abdominus Retracts ribs & sternum, compresses abdomen. Origin: Pubic crest & symphysis. Insertion: Xiphoid process & cartilages of ribs 5-7. SAME in humans
Clavotrapezius Draws clavicle dorsally & anteriorly. Origin: Scapula. Insertion: Clavicle. TRAPEZIUS in humans
Acromiotrapezius Draws scapula medially. Orgin: Scapula. Insertion: Scapular spine. TRAPEZIUS in humans
Spinotrapezius Draws scapula medially & posterially toward tail. Origin: Scapula. Insertion: Scapular spine. TRAPEZIUS in humans
Levator Scapulae Ventralis Draws scapula cranially, ventrally, & against thoracic wall. Origin: Cervical vertebrae. Insertion: Scapula. LEVATOR SCAPULAE in humans
Latissimus Dorsi Retracts humerus dorsally & posteriorly. Origin: Spinous processes of thoracic vertebrae, lumbar vertebrae, last 3-4 ribs, & illiac crest. Insertion: Floor of intertubercular groove of humerus. SAME in humans
Clavodeltoid/Clavobrachialis Flexes forearm. Origin: Clavicle. Insertion: Humerus. DELTOID in humans
Acromiodeltoid Raises & rotates humerus. Origin: Scapula. Insertion: Humerus. DELTOID in humans
Spinodeltoid Raises & rotates humerus. Origin: Scapula. Insertion: Humerus. DELTOID in humans
Triceps (long, medial, lateral) Extend forearm. Origin: Humerus. Insertion: Ulna. SAME in humans
Biceps Brachii Flexes forearm. Origin: Scapula (coracoid process). Insertion: Radius. SAME in humans
Brachialis Flexes forearm. Origin: Humerus. Insertion: Ulna. SAME in humans
Brachioradialis Synergist in forearm flexion. Origin: Humerus. Insertion: Radius. SAME in humans
Gluteus Medius Abducts thigh. Origin: Illium of pelvic bone. Insertion: Femur. SAME in humans
Gluteus Maximus Abducts thigh. Origin: Illium, Sacrum, & Coccyx. Insertion: Femur. SAME in humans
Caudofemoralis Abducts thigh, extends shank. Origin: Caudal vertebrae. Insertion: Patella. CAT ONLY
Biceps Femoris Abducts thigh, flexes shank. Origin: Femur. Insertion: Fibula & tibia. SAME in humans
Tensor Fasciae Latae Tightens fasciae latae, extends thigh. Origin: Iliac crest of pelvic bone. Insertion: Illiotibial tract. SAME in humans
Semimembranous Extends thigh. Origin: Ischium of pelvic bone. Insertion: Tibia & femur. SAME in humans
Semitendinosus Flexes shank. Origin: Ischium of pelvic bone. Insertion: Tibia. SAME in humans
Sartorius Adducts & rotates thigh, extends shank. Origin: Iliac. Insertion: Tibia. SAME in humans
Gracilis Adducts & retracts leg. Origin: Pubis of pelvic bone. Insertion: Tibia. SAME in humans
Adductor Femoris Adducts thigh. Origin: Ischium. Insertion: Femur. ADDUCTOR MAGNUS & BRAVIS in humans
Adductor Longus Adducts thigh. Origin: Pubis of pelvic bone. Insertion: Femur. SAME in humans
Recturs Femoris Extends shank. Origin: Illium of pelvic bone. Insertion: Tibia & Patella. QUADRICEPS FEMORIS in humans
Vastus Lateralis Extends shank. Origin: Femur. Insertion: Tibia & Patella. QUADRICEPS FEMORIS in humans
Vastus Medialis Extends shank. Origin: Femur. Insertion: Tibia & Patella. QUADRICEPS FEMORIS in humans
Gastrocnemius Extends foot. Origin: Femur. Insertion: Calcaneal tendon. TRICEPS SURAE in humans
Soleus Extends foot. Origin: Tibia & Fibula. Insertion: Calcaneal tendon. TRICEPS SURAE in humans
Achilles Tendon (Calcaneal tendon) Attaches gastrocnemius & soleus to calcaneus. Origin: Gasronemius & Soleus. Insertion: Calcaneus. SAME in humans
Tibialis Anterior Flexes foot. Origin: Tibia. Insertion: Cuneiform & metatarsal 1. SAME in humans
Extensor Digitorum Longus Extends phalanges. Origin: Tibia & Fibula. Insertion: Middle & distal phalanges of toes 2-5. SAME in humans
Peroneus Muscles (longus, bravis, tertius) Extends foot & flexes phalanges. Origin: Fibula. Insertion: Metatarsals. FIBULARIS LONGUS, BRAVIS, TERTIUS
Flexor Digitorum Longus Flexes & inverts foot. Origin: Tibia. Insertion: Distal phalanges of toes 2-5. SAME in humans
Created by: Cediana Studying
 

 



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