Skeleton And Muscles Flashcards
1
Q
Functions of Skeleton
A
Support
Shape
Protection
2
Q
Axial Skeleton
A
Skull - 22 bones
Vertebrae
Ribs - 12 pairs
Sternum
3
Q
Spine
A
33 vertebrae 7 - neck 12 - chest 5 - Small of back 5 - hip 4 - tail
4
Q
Ribs
A
12 pairs
7 - True - Sternum
3 - False - Rib
2 - Floating - None
5
Q
Appendicular Skeleton
A
Pectoral and pelvic girdle
Arms and legs
6
Q
Compact Bone
A
- Contains osteoblasts enclosed in a matrix
- Inorganic salts for strength
- Organic material (collagen) for flexibility
7
Q
Medullary Cavity
A
- Contains bone marrow
- Red Marrow - makes blood cells
- Yellow marrow - stores fat
8
Q
Spongy bone
A
- Compact bone with pockets of bone marrow
- Catabolic cells remove calcium from inside medullary cavity
- Strength and lightness to bones
9
Q
Ossification
A
The replacing of cartilage with bone
10
Q
How we grow
A
Osteoblasts form bone matrix to extend the length of the bone
11
Q
Factors influencing Growth
A
Physical activity
Diet
Human growth hormone levels
12
Q
Ligaments
A
Bone to bone
13
Q
Tendons
A
Muscle to bone
14
Q
Joint
A
Where two or more vines meet
15
Q
Immovable joint
A
No movement between bones
Strength and protection
Skull
