Skeletal system Flashcards
Epiphysis
Very end of the bone
Epiphyseal line
Growth plate
Diaphysis
Main part of the bone/shaft of the bone
Articular cartilage
End of the bone where it COULD meet another bone (Cushions/absorbs)
Periosteum
Bone “Skin”/Sheath around the bone
Cancellous (Spongy)
Porous (Has holes)/Light/Strong
Bone/Red marrow
Blood cells
Compact bones
Dense, more packed than sponge
Medullary cavity
Cavity that holds the yellow marrow
Yellow marrow
Fat
5 functions of bones
- Support
- Protection
- Mineral storage (Calcium)
- Produces red blood cells
- Attachment for ligaments + Tendons
What is the “Axial” Skeleton? What does it include?
Principle supportive structure of the body
- Skull
- Vertebrae (Spine)
- Ribs
What is the “Appendicular” skeleton? What does it include?
Upper and lower bones
- Hands
- Thighs
- Feet
- Legs
- Forearms
- Wrists
- Pectoral and pelvic girdles
Where is the radius located?
Always where your thumbs is
- Pivot joint
Where is the hyoid bone? How is it unique?
the only bone that is not connected/articulate with another bone. Located in the neck/jaw
What is the biggest bone is the body? How much of your height is that bone?
Femur (1/4 of your body)
How many bones do we normally have?
206
How many bones do babies normally have?
300
Where is the smallest bone?
Ear
How many bones are in the ear?
3
Long bones
Longer than wide
- Femur
- Radius
- Tibia
- Ulna
- Humerus
- Phalangs
Short bones
Cube shaped
- Capals (hands)
- Tarsale (feet)
Flat bones
For protective
- Skull bones
- Sterum
- Scapula (Shoulder blades)
Sesamoid bone
Within a tendon
- Patella (Kneecap)
- Base of thumb
- Base of big toe
