Respiratory exchange ratio ration of carbon dioxide release to oxygen consumed during
metabolism
- low RER reflecting an increased reliance on fats
- high RER reflecting an increase reliance on carbs
posterior cruciate ligament ligament will resist forces pulling femur anteriorly with respect
to the tibia
ex; force from being tackled from behind with drive the femur forward but the PCL resists this
OR
if being tackled below the knee, thee PCL works to prevent posterior displacement of the tibia
anterior cruciate ligament resists forward displacement of the tibia with respect to the
femur or posterior displacement of the femur with respect to the tibia
muscles that move the shoulder posterior trapezius
rhomboids
levator scapula
Trapezius Elevates, depresses and adducts the shoulder
Rhomboids Have a major and a minor muscle
- important for shoulder retraction (pulling your shoulder blade togeter in the middle of the
back)
Levator scapulae elevates scapula
, muscles that move shoulder anterior subclavius
pectoralis minor
serratus anterior
coracobracialis
Subclavis depresses the clavicale
the clavicle rotates, and helps hold thee clavicale in position
Pectoralis Minor come off ribs 3, 4 and 5
doesnt move humerus
helps move shoulder anteriorly
serratus anterior - runs along the ribs on the outside
- attached to the top 8 ribs
-inserts on the medial anterior border of the scapula
- protracts shoulder blades, moves them forward around the body
- important for moving your shoulder blade upwards
coracobrachialis - attaches to the humerus
- helps with shoulder flexion and to adduct your shoulder
- more if an arm muscles act on the humerus
winging scapula medial border of scapula is prying up
- typically a problem with the serratus anterior or its innervation, the long thoracic nerve
muscles that move the humerus axial muscles anterior if you move the humerus, they must
cross the glenohumeral joint