extra knowledge
function of the ms system
-for support and standing straight up
-movements
-protect and incase vital organs
-produce RBC in the bone marrow
-storage for essential minerals
flexion vs extension
f: bending limbs at the joint
e: straightening limbs at the joint
what is the temporomandibular joint and its purpose
articulation of the mandible and temporal bone
it permits jaw function (speaking and chewing)
what forms the shoulder gridle and what is it
scapula and clavicle
includes: humerus, scapular, clavicle, joints, and muscles
what does the elbow contain and where do the radioulnar joints articulate
humerus, radius, and ulna of the forearm
elbow and wrist
parts of the system
bones/cartilage: connective tissue
ligaments: bone to bone to prevent unwanted movements and strengthen the joint
tendon: muscle to bone
abduction vs adduction
ab: moving limb away from the midline of the body
add: moving limb towards the midline of the body
what are the three motions the TMJ allows
1. hinge action to open and close jaw
2. gliding action for protusion and retraction
3. gliding from side to side in the lower jaw
articulation of the humerus with the glenoid fossa of the scapula
-ball and socket joint
what side is the articulation of the radius
thumb side
what are the motions of the vertebral column
flexion
extension
abduction
rotation
pronation vs supination vs circumduction
p: palm is down
s: palm is up
c: moving arm in a circle around the shoulder
how many vertebrae are there and where can you feel the spinous process
33 and down the midline of the back
what is the purpose of the rotator cuff
muscles and tendons support and stabilize the shoulder
where does the hip articulate
acetabulum and head of the femur
what diseases are in the bones of the hand
arthritis and osteoarthritis (breakdown of joints)
inversion vs eversion
elevation v depression
i: moving sole of the foot inward at the ankle
e: moving sole of the foot outward at the ankle
d: lowering body part
el: raising a body part
what are the vertebrae
7: cervical
12: thoracic
5: lumbar
5: sacral
3-4: coccygeal
what is the subacromial bursa
abduction of the arm
what is the purpose of the hip bone
1. weight-bearing function
2. stability and bursae movement
what is at the very top of the shoulder
rotation v protraction v retraction
r: moving head around the central axis
p: moving body part forward
re: moving body part backwards
-has four curves showing a double S shape
-absorbs shock (nature of curves+intervertebral disks)
what are the parts of the shoulder
1. shoulder gridle
2. glenohumeral joint
3. rotator cuff
4. subacromial bursa
what is the articulation of the knee, and what does the joint permit
femur, tibia, and patella
flexion and extnsion of the lower leg