Muscle Contraction Flashcards
What is the origin and insertion of the supraspinatus?
Origin: supraspinous fossa
Insertion : greater tubercule of humerus.
What is the action of the Supraspinatus?
Extension of the shoulder
What is the origin and insertion of the Teres major?
Origin: caudal border of scapula
Insertion: teres major tuberosity
What is the action of the Teres Major?
Shoulder flexion
What is the origin and insertion of triceps brachii?
Origin : Caudal border of scapula and proximal humerus
Insertion: Olecranon of ulna
What is the action of triceps brachii?
Extension of the elbow
Can also flex the shoulder
What are the origin and insertion points of biceps brachii ?
Origin: supraglenoid tubercule of scapula
Insertion: Radial and ulnar tuberosity
What is the action of biceps brachii?
Flex the elbow
Can extend the shoulder
What is the origin and insertion points of the supinator?
Origin: Lateral Epicondyle of humerus
Insertion: Cranial radius
What is the action of the supinator?
Supinate antebrachium ( turn inwards)
What are the origin and insertion points of the pronator teres?
Origin:
Medial Epicondyle of humerus
Insertion: Cranial and medial aspect of the radius
What is the action of the Pronator teres?
Pronate the antebrachium ( turn outward)
Quadriceps femoris: Origin and insertion of rectus femoris?
Origin: Pelvis(ilium- cranial to acetabulum)
Insertion: Tibial tuberosity
Quadriceps femoris: Origin and insertion of vastus lateralis?
Origin: Proximal femur
Insertion: Tibial tuberosity
Hamstring: Where is the origin and insertion of Semitendinous m.?
Origin : Pelvis ( ischiaticI tuberosity)
Insertion: Proximal tibia
And Calcaneus ( a tarsal bone)
What are the actions of the quadriceps (recuts femoris, vastus lateralis)?
Flex the hip and extend the stifle
What is the action of the semitendonous m.?
Extend the hip
Flex the stifle
Extend the hock
