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Flashcards in Skeletal System Deck (47):
0

What makes up the axial skeleton?

Skull, vertebral column, bones of the thorax

1

What makes up the appendicular skeleton?

Pectoral girdle, pelvic girdle, upper & lower limbs

2

Name a long bone?

Humerus, femur

3

Name a short bone?

Carpal

4

Name a flat bone?

Sternum

5

Name a sesamoid bone?

Patella

6

Name an irregular bone?

Vertebrae, mandible

7

What is the name of the c1 vertebrae?

Atlas

8

What is the name of the c2 vertebrae?

Axis

9

Put the vertebrae of the spine in order?

Cervical (1-7), thoracic (1-12), lumbar (1-5), sacrum (1-5 fused), cocyx

10

What bones make up the pectoral girdle?

Scapula, clavicle

11

What bones make up the pelvic girdle?

Ilium, ischium, pubis

12

Name some functions of the skeleton?

Support, protect,

13

What type of tissue is bone?

Specialised form of connective tissue

14

What is the name if bones collagenous matrix?

Osteoid

15

Osteoid calcifies through deposition of what?

Calcium & phosphate

16

What do the collagenous fibres & glycoproteins in osteoid do?

Confer strength & flexibility

17

What do mineral deposits in the osteoid do?

Give hardness & durability

18

What is the shaft of the bone called?

Diaphysis

19

What is the epithelial membrane of the diaphysis called?

Periosteum

20

What are the ends of a bone called?

Epiphyses

21

What reduces friction at bones articulating surfaces?

Hyaline cartilage

22

What is the name of the space filled by bone marrow within the bone?

Endosteum

23

What variety of marrow is produced in long bones?

Yellow (fat)

24

What marrow is produced by irregular & flat bones?

Red marrow

25

What does bone marrow contain?

Haemotopietic tissue ( stem cells that give rise to blood cells)

26

What do all bones house?

Nerve fibres & blood cells

27

When does the developing skeleton fully mature?

Approx 20yrs

28

What causes ossification?

Osteoid & minerals

29

When is ossification fully complete?

Third decade of life

30

Where in the bone does growth occur?

Epiphyseal growth plate

31

What is the name of a bone forming cell?

Osteoblasts

32

What is a mature bone cell called?

Osteocytes

33

What is the name of the cell that remodels & replaces the skeleton?

Osteoclasts

34

What do you need to maintain a healthy skeleton?

Exercise, balanced diet, adequate amounts of calcium, phosphorus, vitamins d,c & d

35

Define compact bone?

Dense & consists tightly packed osteons

36

Define spongy bone?

Contains many marrow filled spaces

37

Define what a joint is?

Joints occur when 2 or more bones come together

38

Name an immovable/ fibrous joint?

Skull bones

39

Name a slightly movable/ cartilaginous joint?

Vertebrae, pubic ramus

40

Name a freely movable/ synovial joint?

Knee (hinge), elbow (hinge), hip (ball & socket), shoulder (ball & socket)

41

What makes a synovial joint different from others?

Separated by a cavity filled with synovial fluid

42

Where is synovial fluid made?

Secreted by the synovial membrane

43

What is the function of synovial fluid?

Permits friction free movement

44

What is the name of the structure that supports a joint?

Ligament

45

What is the name of the ligament located within a joint?

Intrascapular ligament

46

What is the name of the ligament located outside a joint?

Extrascapular ligament