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T1 PHYSIOLOGY > SKELETAL SYSTEM > Flashcards

Flashcards in SKELETAL SYSTEM Deck (28):
1

Osteoclasts are?

Bone 'eating' cells

2

Osteoprogenitor/Osteogenic cells function to?

Heal and cyclical bone replacement

3

What does trabeculae contain?

Contain osteocytes in the lacunae, which connected by canaliculi

4

Osteon is also known as?

Haversian Systems

5

Nutrient Arteries supply...?

The inner compact bone, spongy bone, and red bone marrow

6

Osteocytes are?

Mature bone cells

7

Osteoblasts are?

Bone building cells

8

The external layer of all bone is known as?

Compact bone/Cortical/Dense

9

The red marrow is for?

Blood cell formation

10

The space within the diaphysis is known as?

Medullary Cavity/Marrow Cavity

11

The diaphysis is what part of the bone?

The shaft - main portion of the bone

12

The yellow marrow is for?

Fat storage

13

Describe Lacunae.

The space between the rings, containing Osteocytes

14

Describe the Central Haversian Canal.

A hole through the osteon which blood and lymphatic vessels run

15

The metaphyses is what part of bone?

Inbetween the diaphysis and the epiphyses

16

What is periosteum?

A CT covering surrounding bone

17

Concentric Lamallae are?

Rings of calcified bone matrix around the central canal

18

From middle age, bone loss ______ bone growth.

Exceeds

19

Canaliculi are?

Small channels sticking out from lacunae allowing osteocytes communication

20

Which part of bone contain the epiphyseal growth plate/epiphyseal line?

Metaphyses

21

The matrix is comprise of?

25% water, 25% collagen, 50% mineral salts

22

The inner layer of periosteum contain?

Contains bone forming cells

23

Describe Volmann's Canals.

Transverse holes connecting the inner and outer portion of bone

24

In young adults, bone growth is ______ to bone loss.

Equal

25

The outer layer of periosteum is a...?

A tough, supportive/protective layer

26

Spongy Bone/Cancellous Bone contains?

Trabeculae

27

Periosteal Arteries supply...?

The periosteum and outer compact bone

28

The epiphyses is what part of the bone?

The ends of the bone