kinesiology exam 1 Flashcards
DB shrugs:muscles and action
Levator scapulae
, downward rotation, elevation
Upward rotators
trap (upper)
Serratus anterior
Levator scapulae orgin and insertion
Orgin: Transverse proccess of upper four cervical vertbrae
Insertion: Medial border of scapulae above spine
rhomboids
retractiobn
Trapezies orgin and insertion
Orgin: Base of skull
Insertion: Acromion process, spine of scapulae, posterior and lateral clavicle
Rhomboids orgin and insertion
orgin: spinous process of c7-t5
Insertion: medial border of scapulae
Serratus
orgin: ribs 1-9
insertion: anteral aspect of medial border of scapulae
pectoralis orgin and insertion
orgin: surface of ribs 3-5
Insertion: corociod process of scapulae
Anterior
front
posterior
back/ behind
Inferior
below
superior
above
proximal
nearest trunk
distal
away from trunk
lateral
further from midline
medial
closer to midline
flexion
bending movement that results in a downward angle of joint movement
circumduction
Circular movement of a limb (not a fundamental movement)
Action
specific movement of a joint resulting from a concentric contraction of a muscle which crosses joint
ex: flex elbow, supinate forearm
orgin
closest to midline
insertion
further from midline
3 roles of muscles
cause, control, prevent movement
isometric contraction
tension is developed within muscle but joint angles remain constant
static contractions
isotonic contraction
involve muscle developing tension to either cause or control joint movement
dynamic contractions
the varying degrees of tension in muscles result in joint angles changing
Isotonic contractions are either concentric or eccentric