Skeletal System Flashcards
Cartilage made up of…
Connective tissue
Extracellular substance > cells
Gel like substance
Flexible ‘hard plastic’ consistency
Cartilage Function
Sustains weight put through bone
Absorbs shock and stress
Form and support
Growth of bone
Cartilage is
Avascular (lack of blood vessels)
Receives nutrition via diffusion
Hyaline Cartilage
**most common
Line articular surfaces
Connect rib to sternum
Tip of nose
Rings of trachea and bronchii
Elastic Cartilage
modification of hyaline cartilage, more pliable than HC, more resilient
External ear
Epiglottis (back of throat under 👅)
Eustachian tubes (middle ear to back of nose)
Triangular fibrocartilage complex
Wrist/ulna tear
Arth/o scopy
Visual examination of the joints
Fibrocartilage
Strong and rigid
Functions:
Forms intervertebral discs, pubic symphysis, some large tendons to bone
Osteoporosis
Bone destruction (by osteoclasts)
Result = loss of calcified tissue
Fracture or fall
Osteoarthritis
aka degenerative joint disease
Most common
Localized
Non-inflammatory
Affects big joints (hips, knees) and fingers and neck
Heberdon’s Nodes
Osteoarthritis
DIP joints
Limit motion
Bouchard’s Nodes
Osteoarthritis
PIP joints
Painful, limit motion
NSAIDs 💊
Nonsteroidal anti-inflammatory
(Aspirin, ibuprofen)
P.O
Taken by mouth 👄 💊
Rheumatoid arthritis (RA)
Chronic (flares up and then diminishes)
Systemic, whole body, esp. synovial lining of joints
Autoimmune disorder, body attacks itself