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)
