Ch 30 Musculoskeletal Flashcards
5 functions of the musculoskeletal system
- Give body its shape
- Protect internal organs
- Provide for movement
- Stores salts and other minerals for metabolism
- Produce Red Blood Cells necessaary for oxygen
what r the 3 types of muscules
voluntary (skeletal)
involuntary (smooth)
cardiac
Voluntary muscles are those under control of a person’s will. name some examples
walking, chewing, swallowing, smiling, frowning, talking moving eyeballs
connects muscle to bone
tendons
connects bone to bone
ligaments
this is an extension of the bone and is composed of connective tissue, acts as a shock absorber found at the point of two bones
cartilage
bending that moves the extremity towards the body
flexion
movement of a body part towards midline of the body
adduction
movement of a body part away from the midline of the body
abduction
turning along the axis of the bone or joint
rotation
movement throughan arc of a circle or in a circular motion from a central point
circumduction
6 components of the skeletal system
skull spinal column thorax pelvis lower extremities upper extremities
axial skeletal system (3)
head
thorax
vertebral column
what is the hollow depression in the lateral pelvis where the head of the femur fits creating a joint
acetabulum
direct blow occurs at point of impact
direct force
force impacts on one end of a limb causing injury some distance away from the point of impact.
indirect force
T/F
severe bleeding associated with afractured pelvis or femur often occurs from the bone itself not from the lacerated vsl outside the tissue
true
red marrow produces
red blood cells
sound of feeling broken fragments of bone grinding agaisnt each other
crepitus
pt complaining of numbness or a tingling sensation
paresthesia
2 basic reasons for splinting a bone
prevents movement
reduces chance of further injury
T/F
both before and after you apply a splint assess the pulse, moto function and sensation distal to the injury
True
commericially manufactured splints made of wood, plastic, cardboard, compressed wood designed with velcro straps
rigid splints
splints that are soft and pliable being inflated but rigid once filled with air
cannot be sized, impair circulation, interfere with ability to access pulse
pressure (air or pneumatic) splints