Insertions and Origins of the muscles of the cat - Anterior View Flashcards
Pectoantebrachialis - Insertion
Humerus
Pectoantebrachialis - Origin
Manubrium
Pectoantebrachialis - Action
Adducts humerus
Pectoralis major - Insertion
Humerus
Pectoralis major - Origin
Ribs 1-6, sternum, clavicle
Pectoralis major - Action
Adducts, flexes and medially rotates humerus
Pectoralis minor - Insertion
Coracoid process of scapula
Pectoralis minor - Origin
Ribs 3-5
Pectoralis minor - Action
Scapular protraction; draws ribcage superiorly
Xiphihumeralis - Insertion
Humerus
Xiphihumeralis - Origin
Xiphoid process
Xiphihumeralis - Action
Adducts, medially rotates humerus
Serratus ventralis - Insertion
Scapula
Serratus ventralis - Origin
Ribs 1-8
Serratus ventralis - Action
Abduction of humerus; lateral rotation of scapular; scapular protraction; depression of scapula
Subscapularis - Insertion
Lesser tubercle of humerus
Subscapularis - Origin
Subscapular fossa
Subscapularis - Action
Medial rotation of humerus
Triceps brachii - Insertion
Olecranon process of ulna
Triceps brachii - Origin
Scapular, humerus
Triceps brachii - Action
Forearm (elbow) extension
Biceps brachii - Insertion
Radial tuberosity
Biceps brachii - Origin
Scapular
Biceps brachii - Action
Flexion of forearm (elbow); supination of forearm
Rectus abdominis - Insertion
Ribs 5-7; xiphoid process
Rectus abdominis - Origin
Pubic symphysis
Rectus abdominis - Action
Flexes and rotates vertebral column
Internal oblique - Insertion
Ribs 9-12; linea alba
Internal oblique - Origin
Iliac crest, lumbar fascia, inguinal ligament
Internal oblique - Action
Flexes vertebral trunk; trunk rotation; lateral flexion; compresses abdomen
External oblique - Insertion
Iliac crest; linea alba
External oblique - Origin
Ribs 5-12
External oblique - Action
Flexes vertebral trunk; trunk rotation; lateral flexion; compresses abdomen
Sartorius - Insertion
Medial Tibia
Sartorius - Origin
Iliac crest
Sartorius - Action
Flexes leg (knee); flexes, abducts and laterally rotates thigh
Tensor fasciae latae - Insertion
Iliotibial tract
Tensor fasciae latae - Origin
Ilia crest
Tensor fasciae latae
Steadies trunk on thigh
Vastus lateralis - Insertion
Tibila tuberosity, patella
Vastus lateralis - Origin
Greater trochanter of femur
Vastus lateralis - Action
Extension of leg (knee)
Rectus femoris - Insertion
Tibial tuberosity, patella
Rectus femoris - Origin
Ilium, acetabulum
Rectus femoris - Action
Extension of leg (knee); flexion of thigh
Vastus medialis - Insertion
Tibial tuberosity, patella
Vastus medialis - Origin
Femur
Vastus medialis - Action
Extension of leg (knee)
Gracilis - Insertion
Medial tibia
Gracilis - Origin
Ischium, pubis
Gracilis - Action
Adducts thigh; flexes leg (knee)
Adductor longus - Insertion
Femur
Adductor longus - Origin
Pubis
Adductor longus - Action
Adducts, flexes, medially rotates thigh
Adductor Femoris - Insertion
Femur
Adductor Femoris - Origin
Ischium, pubis
Adductor Femoris - Action
Adducts, flexes, medially rotates thigh
Semimembranosus - Insertion
Tibia and femur
Semimembranosus - Origin
Ischial tuberosity
Semimembranosus - Action
Extends thigh; flexes leg (knee)
Semitendinosus - Insertion
Medial tibia
Semitendinosus - Origin
Ischial tuberosity
Semitendinosus - Action
Extends thigh; flexes leg (knee)