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Flashcards in Skeletal System Deck (44)
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What are the 5 functions of the skeletal system?

Support, protection, body movement, blood cell formation, stores inorganic minerals

1

What are the five major types of bone?

Long, short, flat, sesmoid, irregular

2

Anatomical name for the shaft of a long bone

Diaphysis

3

Anatomical name for the ends of a long bone

Epiphysis

4

A band of cartilage that remains between two ossification centers; growth plate

Epiphyseal plate

5

Site of spongy bone in an adult?

Epiphysis?

6

Cartilage that covers the ends of long bones at the joints; provides a gliding surface on bones

Hyaline cartilage

7

Site of compact bone in an adult?

Diaphysis

8

Site of hematopoiesis?

Red marrow

10

Formation of blood cells

Hematopoiesis

11

Site of fat storage

yellow marrow

12

site of longitudinal growth in a child

epiphyseal plates

13

Why do bone injuries heal faster than cartilage injuries?

bones have a higher blood supply which contains more nutrients to heal

14

Bone cells

osteocytes

15

where are osteocytes located?

lacunae

16

Immature or matrix-depositing bone cells

osteoblast

17

Bone cells that liquefy bone matrix and release calcium to the blood

osteoclast

18

Why do astronauts do isometric exercises when in space?

lack of gravity

19

Residences of osteocytes

Lacunae

20

Longitudinal canal carrying blood vessels and nerves

haversian canal

21

Nonliving structural part of bone

bone matrix

22

Tiny canals connecting lacunae

canaliculi

23

What is the function of the inorganic part of the matrix?

flexibility and strength

24

The formation of bone

ossification

25

how does intramembraneous bones form?

Osteoblasts appear in the connective tissue and deposit bony matrix which makes spongy bone form

26

How does endochondral bones form?

Cartilage models form and rapidly divides, forms compact bone and blood vessels

27

Name two ways the fetal skull differs from the adult skull

Fetal skull can still move around because it still has soft spots. Adult skulls have the parts of the skull fused together making the head more durable

28

A break in a bone

fracture

29

What are the 6 types of fractures?

spiral, greenstick, fissured, comminuted, transverse, oblique

30

How do fractures heal?

Blood escaping from the damaged blood vessels form a hematoma, spongy bone and fibrocartilage form, bony callus replaces the cartilage and osteoclasts remove the excess bony tissue