Chapter 22: Musculoskeletal Flashcards
Function of musculoskeletal system
- Provides structure and movement for the body
- Consists of bones, skeletal muscles, and joints
- Allows the body to stand erect and move
- Supports and protects organs
- Produces red blood cells
- Stores fat and minerals
- Generates heat
Non synovial joints
Synovial joints are bones united by fibrous tissue or cartilage are
Example of a immovable non synovial joint
Suture in the skull
Example of a slightly moveable non synovial joint
Vertebrae
Synovial joints
Freely moveable because bones are separated and enclosed in joint cavities
**Cavity filled with lubricant, or synovial fluid; synovial fluid allows sliding which permits movement
Example of a pivot joint
Between C1 and C2 vertebrae
Example of a Ball and socket joint
Hip joint
Example of condyloid joint
Between radius and carpal bones of the wrist
Example of plane joint
Between tarsal bones
Example of saddle joint
Between trapezium carpal bones and 1st metacarpal bone (thumb and wrist bone)
Example of a hinge joint
Elbow
How is movement produced?
When muscles contract
What are the 3 kinds of muscles?
Skeletal, smooth and cardiac
Are skeletal and voluntary muscles under conscious or unconscious control?
Conscious control
TMJ
Articulation of mandible and temporal bone
TMJ permits jaw function of speaking and chewing
What three motions does TMJ produce?
Hinge action to open and close jaws
Gliding action for protrusion and retraction
Gliding for side-to-side movement of lower jaw
How many of each vertebrae are there?
7 cervical 12 thoracic 5 lumbar 5 sacral 3 to 4 coccygeal
Talipes equinovarus (clubfoot)
Inward turning foot
Including: 1) inversion 2) forefoot adduction 3) foot pointing downwards (equinus)
Metatarsus adductus
Turning of forefront of foot
Metatarsals bones deviate inward
Ortolani and Barlows test
Examination of the newborn:
Ortolani is abducting the hips, Barlows is adducting the hips
Allis test (Galeazzi)
Patient flat, both knees up, with heels to the butt, the knees should be the same level unless there is hip dislocation
Signs of Neural tube defect
Tuft of hair, Skin dimpling
What to keep in mind regarding clavicles when delivering a baby
Can fracture when infant delivered vaginally
Polydactyl
Multiple digits
Syndactyl
Webbed fingers
Lordosis
Lower spine curves in and butt pops out