Insertions / attachments/ origins kinesology Flashcards
Origin of muscle
Where the end of a muscle is anchored to a bone and does not move. Located more proximal
Insertion of muscle
The more mobile attachment of the muscle that connects it to the bone. Located more distal
Prime Mover
the primary muscle responsible for a specific movement
Agonist
Another name for prime mover
Antagonist
The muscle that performs the opposite movement of the agonist
Synergists
Muscles that share the same action the agonist
Fixator
Muscles that act to stabilize a body part so that another muscle can act on an adjacent body part.
Ligament that wraps around head and neck of radius to stabilize it against the ulna during pronation and supination
Annular Ligament
Rounded eminence on the lateral distal portion of the humerus that articulates with the radius.
Capitulum/Lateral condyle of the humerus
Tunnel formed by the retinacula and the carpal bones of the wrist through which the nine flexor tendons and the median nerve pass.
Carpal tunnel
These joints allow flexion, extension, abduction, adduction, and opposition and circumduction at the thumb. 5 of them
carpometacarpal joint
Depression in the distal anterior portion of the humerus that receives the coronoid process of the ulna
Coronoid fossa
A triangular eminence projecting from the anterior proximal portion of the ulna that serves as an attachment site for ligaments and tendons of the forearm and wrist.
Coronoid process- ulna
A synovial pivot joint formed by the head of the ulna and the ulnar notch of the radius that allows pronation and supination.
distal radioulnar joint
Muscle of the forearm with four long tendons that extends the second through fifth fingers and assists in extension of the wrist.
Extensor digitorium
Thick, stabilizing fascial tissue on the dorsal surface of the wrist.
Extensor retinaculum
Largest carpal bone distal to the lunate on the dorsal surface of the wrist.
Capitate
Carpal bone located distal and lateral to the pisiform; palpable on the palmar surface of the hand.
Hamate
A synovial hinge joint formed between the radial head and the capitulum of the humerus that allows flexion and extension. This joint sits side by side with the humeroulnar joint.
Humeroradial joint
A synovial hinge joint formed between the trochlear notch of the ulna and the trochlea of the humerus that allows flexion and extension. This joint sits side by side with the humeroradial joint.
Humeroulnar joint
Synovial gliding joints formed between individual carpal bones of the wrist.
Intercarpal joints
Connective tissue membrane between the radius and ulna.
interosseous membrane in the forearm
A synovial hinge joint formed between the phalanges
each finger has two, the thumb only has 1
A synovial hinge joint formed between the phalanges