Skeletal System

Question 0

Name 5 characteristics of the axial skeleton:

Answer 0

80 bones, flat irregular bones, synarthrotic joints (most), protection, mostly red marrow

Question 1

Name the 6 functions of the skeletal system:

Answer 1

Support, movement, protection, mineral supply, hemopoiesis, storage

Question 2

Name 5 characteristics of the appendicular skeleton:

Answer 2

126 bones, long, short bones, diarthrotic joints (most), movement, mostly yellow marrow

Question 3

Name 9 facts about cartilage:

Answer 3

1. Flexible
2. More matrix
3. Collagenous matrix
4. No canal system
5. No blood vessels
6. Chondocytes
7. Periochondrium
8. 3 types
9. No marrow

Question 4

Name 9 facts about bone:

Answer 4

1. Rigid
2. More cells
3. Calcified matrix
4. Canal system
5. Blood vessels
6. Osteocytes
7. Periosteum
8. 2 types
9. Marrow

Question 5

What is the epiphysis? Epiphyseal line?

Answer 5

Epiphysis- end of a long bone, capped with articulate cartilage
Epiphyseal line- separates the epiphysis from the shaft

Question 6

What is the diaphysis?

Answer 6

The shaft of a large bone, compact bone w a central cavity

Question 7

What is the articular cartilage?

Answer 7

Only remaining evidence of a bone’s cartilaginous past, smooth, slippery, bloodless
COVERS THE EPIPHYSIS

Question 8

Periosteum?

Answer 8

Fibrous, cellular, vascular, highly sensitive, life support sheath for bone
COVERS THE SHAFT

Question 9

Cancellous (spongy) bone/ red marrow?

Answer 9

Tiny beams of bone forming lattice truss capable of reorientation
INSIDE OF EPIPHYSISES AND LINES SHAFT

Question 10

Compact bone?

Answer 10

Dense solid of diaphysis, solid bone tissue

FREE SPACE INSIDE BONE

Question 11

Medullary cavity, yellow marrow?

Answer 11

Serves to lighten bone weight and provide space for marrow,

INSIDE CANCELLOUS BONE IN SHAFT

Question 12

Nutrient artery?

Answer 12

Oblique tunnel, branches throughout shaft, supplies w nutrients
INSIDE YELLOW MARROW OF SHAFT