Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
38 Cards in this Set
- Front
- Back
scapulohumeral rythym involves ___ of the scapula and ___ of the humerus |
upward rotation / abduction |
|
what is the purpose of scapula muscles |
to stabilize and move the scapula |
|
which is not a rotator cuff muscle |
teres major |
|
which is true about the rotator cuff muscles |
they work together to hold the head of the humerus in the glenoid fossa |
|
what secretes synovial fluid to lessen friction between soft tissues around joints |
bursae |
|
glenohumeral dislocations occur when |
the humerus is abducted and externally rotated |
|
which scapula muscles perofrm as stabilizers during crutch walking |
depressors |
|
which scapula muscles perform as stabilisers during pushups |
abductors |
|
what can promote the development of rotator cuff impingement syndrome |
throwing swiming tennis serving |
|
biceps brachii is strongest and most effectivve as an elbow flexor when the forearm is in what position |
supinated |
|
the brachialis strongest effective elboew flexor |
IN any position |
|
to best isolate the brachialis perform arm cirls with forearm in what position |
pronated |
|
ecarpometacarpal joint 1 is what type of joint |
saddle |
|
interphalangeal joints are what type of joints |
hinge |
|
metacarpal phalangela joints 2 3 4 5 are what type of joint |
condyloid |
|
overuse of wrist extensors can cause |
tennis elbow, lateral epicondylitis, tendinitis |
|
muscles associated with little league elbow |
wrist flexors |
|
muscles on the anterior side of the arm produce flextion at what joints |
shoulder elbow wrist |
|
what provides stability at the elbow |
articulating bones and ligaments |
|
pronation and supination of the forearm occur at what joints |
proximal and distal radioulnar |
|
which tyes of movement are permittedat the radiocarpal joint |
saggital plane, circumduction, frontal plane motion |
|
movement of the hand at the wrist toward the thumb side of the arm (frontal plane) is known as what |
radial deviation |
|
the large reange ofmotion at the thumb compared to fingers is derived from structure of |
thumbs carpometacarpal joint |
|
unique behavioral property of muscle |
ability to develop tension |
|
where is the series elastic component of amuscle found |
tendon |
|
the elasticity of human skeletal muscle tissue is mostly due to |
series elastic component |
|
motor unit |
single motor neuron and all muscle fibers it innervates |
|
penneate muscles |
more tension less range of motion |
|
parallel muscles |
less tension more range of motoin |
|
when movement is slow |
slow twitch muscle fibers are recruited first |
|
type of muscle contraction employed by elbow flexors when slowly lowering backpack to desk |
eccentric |
|
contraction with no length change |
isometric |
|
down phase of knee extension excersize what role hamstring |
antagonist |
|
type of muscle tension used as a bracking muchanism |
eccentric |
|
biceps crachii finction as antagonist |
straighten elbow during pushup |
|
electromechanical delay |
time required to initiate development of tension after nerve impulse |
|
force velocity relationship fro muscles |
contraction is slower ehn the load isheavior |
|
rate of torque production at a joint |
muscular power |