muscoskeletal system. Flashcards

(54 cards)

1
Q

Bone is a type of what tissue?

A

connective

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How many bones do adults normally have?

A

206

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How many bones are babies born with?

A

300 to 350 bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is an osteoblast?

A

bone-building cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is an osteoclast?

A

bone destroying cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is an osteocyte cell?

A

cell that lies within the substance of the fully formed bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is an osteoprogenitor cell?

A

stem cell whose divisions produce osteoblasts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the diaphysis?

A

shaft of a bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the epiphysis?

A

ends of bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the two types of bone tissue?

A

compact and spongy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is cancellous bone tissue also known as?

A

spongy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are long bones?

A

longer than they are wide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are irregular bones ?

A

bones that do not fit one of the preceding categories

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are short bones?

A

cube shaped bones of the wrist and ankle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are sesamoid bones?

A

bones that develop from tendons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are flat bones?

A

thin, flat, slightly curved

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Give examples of flat bones?

A

skull, ribs, sternum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Give examples of irregular bones?

A

vertebrae and hip bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Give examples of long bones?

A

femur, humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Give examples of sesamoid bones?

A

patella and pisiform

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Give examples of short bones?

A

carpals and tarsals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the axial skeleton?

A

skull, vertebral column, rib cage

23
Q

How many bones in the axial skeleton?

24
Q

What is the spine also known as?

A

vertebral column

25
What is the function of the spine?
provides attachment points for ribs and muscles of the back
26
What is the appendicular skeleton?
arms and legs
27
How many bones in the appendicular skeleton?
126 bones
28
What is a joint?
where two or more bones meet
29
What are the three types of joints?
synathrotic, anthrepotic, diathrotic
30
What is a fibrous joint?
immovable joint
31
What is a cartilagenous joint?
semi movable
32
What is a synovial joint?
freely moveable joint
33
Give an example of a ball and socket joint
Hip and shoulder
34
Give an example of a ball and socket joint
Hip and shoulder
35
Give an example of a hinge joint
elbow, knee, ankle
36
What are pivot joints
movement is around one axis
37
What are saddle joints
Around 2 axes
38
Give an example of a gliding joint?
Carpal bones, sternoclavicular joint
39
Why are muscles important in the muscoskeletal system?
Important for motion
40
Which muscles are striated?
skeletal and cardiac
41
Which muscle is non- striated?
smooth
42
What are the three types of muscle types?
Cardiac Smooth Skeletal
43
What do cardiac muscles form most of?
heart wall (myocardium)
44
Where are smooth muscles found?
hollow internal structures
45
Define electrical excitability?
muscles need positive and negative ions to move
46
Define contractility
ability to shorten forcibly when stimulated
47
Define extensibility
stretch without damage
48
Define elasticity
Returning to shape following contraction or extension
49
How many pairs of ribs do adults usually have?
12
50
How many vertebrae in the spine?
33
51
What is the generation of heat from the muslce called?
thermogenesis
52
What makes the bones so strong?
calcium and phosphorus
53
What is the difference between bone and cartilage ?
Bone is firm Cartilage is rubbery
54
The hollow space within the bones is filled with..?
bone cells