Chapter 23- Musculoskeletal System Flashcards Preview

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Flashcards in Chapter 23- Musculoskeletal System Deck (112)
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1

The musculoskeletal system consists of ____.

bones, joints, and muscles

2

The musculoskeletal system is needed for :

support and to stand erect

movement

to encase and protect inner vital organs

to produce RBCs in bone marrow

Serve as a reservoir for storage of essential minerals

3

Musculoskeletal components :

Bones and cartilage

fibrous, cartilaginous and synovial

Joints

ligaments

Bursa

Muscle

4

___ are places of union of 2 or more bones

joints or articulations

5

fibrous bands from one bone to another that strengthen the joint and prevent of union of two or more bones

Ligaments

6

enclosed fluid filled sac that serves as a cushion

Bursa

7

What kind of joint: Bones united by interjacent fibrous tissue or cartilage and do not move (sutures in skull)

Fibrous joints

8

What kind of joint: Separated by fibrous cartilage and are slightly moveable (vertebrae)

Cartilaginous joints

9

Freely moveable joints separated by one another and enclosed in a cavity lined with synovial membrane that secretes fluid

Synovial joints

10

Bursae are located in areas of ___ to facilitate movement of muscles and tendons

potential friction

11

synovial joints are surrounded by ____

ligaments

12

Synovial joints contain a layer of ___ cartilage

avascular

13

Bending limb at joint

Flexion

14

Straightening limb at joint

Extension

15

moving limb away from midline of body

Abduction

16

Moving limb toward midline of body

Adduction

17

turning forearm so that palm is down

pronation

18

turning forearm so that palm is up

supination

19

moving arm in circle around shoulder

circumduction

20

moving sole of foot inward at ankle

inversion

21

moving some of foot outward at ankle

eversion

22

moving head around central axis

rotation

23

moving body part forward, parallel to ground

protraction

24

moving body part backward, parallel to ground

retraction

25

raising a body part

elevation

26

lowering a body part

depression

27

the articulation of mandible and temporal bone

temporomandibular joint

28

Temporomandibular Joint (TMJ) permits ___

jaw function of speaking and chewing

29

TMJ allows 3 motions:

hinge action to open and close jaws

gliding action for protrusion and retraction

gliding for side-to-side movement of lower jaw

30

33 connecting bones stacked in vertical column

Vertebrae