Chapter 9 Joints Flashcards Preview

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Flashcards in Chapter 9 Joints Deck (61):
1

joints, or articulations, are classified on the basis of their degree of movement. identify the correct order on basis of no movement- slight movement- freely movement

synarthrosis
amphiarthrosis
diarthrosis

2

the amphiarthrotic articulation that limits movements between the two pubic bones

pubic symphysis

3

the type of synarthrosis that binds each tooth to the surrounding bony socket

gomphosis

4

functions of the synovial fluid that fills the joint cavity

nourishes chondrocytes
provides lubrication
shock absorber

5

the reason that elbow and knee are called hinge joints

they permit angular movement in a single plane

6

the knee joint functions as a

hinge joint

7

the joint that permits the greatest range of motion of any joint in the body

shoulder joint

8

body movements occur at joints where two bones connect

articulations

9

based on range of motion of the joint

functional

10

the anatomical observation of the joint

structural

11

immovable joint

synarthrosis

12

slightly movable joint

amphiarthrosis

13

freely movable joint

diarthrosis

14

4 structural classifications

bony
fibrous
cartilaginous
synovial

15

four types of synarthrotic joints

suture
gomphosis
synchondrosis
synostosis

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bones are interlocked, bound by dense fibrous connective tissue, found only in skull

suture

17

fibrous connection, binds teeth to sockets

gomphosis

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is a rigid cartilaginous bridge between epiphyseal cartilage of long bones, and vertebrosternal ribs and sternum

synchondrosis

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fused bones, immovable, metabolic suture of skull, epiphyseal of long bones

synostosis

20

more movable than synarthrosis, stronger than freely movable joint

amphiarthroses

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two types of amphiarthroses:

syndesmosis: bones connected by ligaments
symphysis: bones separated by fibrous cartilage

22

movable joints, at ends of long bones, within articular capsules, lines with synovial membrane

synovial joints

23

components of synovial joints:

articular cartilage
synovial fluid
accessory structures

24

contains slippery proteoglycans secreted by fibroblasts

synovial fluid

25

superficial to the joint capsule, protect articular cartilages

fat pads

26

support and strengthens joints

ligaments

27

ligaments with torn collagen fibers

sprain

28

attach to muscles around joint, helps support joint

tendons

29

pockets of synovial fluid, cushions areas where tendons or ligaments rub

bursae

30

articulating surfaces forced out of position, damages articular cartilages, ligaments, joint capsules

dislocation

31

a partial dislocation

subluxation

32

types of dynamic motion

linear motion
angular motion
rotation

33

planes of dynamic motion

monaxial
biaxial
triaxial

34

two surfaces slide past each other, between carpal or tarsal bones

linear motion

35

circular motion without rotation, angular motion

circumduction

36

rotates toward axis (inward)

medial rotation

37

rotates away from axis (outward)

lateral rotation

38

classification of synovial joints by shape

gliding
hinge
pivot
ellipsoid
saddle
ball-and-socket

39

oval articular face with a depression, biaxial

ellipsoid joints

40

two concave, straddled, biaxial

saddle joints

41

rounded articular face in a depression, triaxial

ball-and-socket joints

42

pads of fibrous cartilage, separate vertebral bodies

intervertebral discs

43

tough outer layer, attaches disc to vertebrae

anulus fibrosus

44

elastic gelatinous core, absorbs shock

nucleus puiposis

45

connects anterior bodies

anterior longitudinal ligament

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connects posterior bodies

posterior longitudinal ligament

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connects laminae

ligamentum flavum

48

connects spinous processes

interspinous ligament

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connects tips of spinous processes

supraspinous ligament

50

continues supraspinous ligament

ligamentum nuchae

51

shoulder ligaments

glenohumeral
coracohumeral
coraco-acromial
coracoclavicular
acromioclavicular

52

deepens socket of glenoid cavity, fibrous cartilage lining, extends past the bone

glenoid labrum

53

largest articulation, trochlea of humerus and trochlear notch of ulna

humero-ulnar joint

54

smaller articulation, capitulum of humerus and head of radius

humeroradial joint

55

attached to radial tuberosity, controls elbow motion

radial tuberosity

56

radial collateral, annular, ulnar collateral

elbow ligaments

57

a pain and stiffness of skeletal and muscular systems

rheumatism

58

all forms of rheumatism that damage articular cartilages of synovial joints

arthritis

59

caused by wear and tear of joint surfaces, or genetic factor affecting collagen formation

osteoarthritis

60

an inflammatory condition, caused by infection, allergy, or autoimmune disease

rheumatoid arthritis

61

occurs when crystals form within synovial fluid due to metabolic disorders

gouty arthritis