Joints Flashcards Preview

Anatomy > Joints > Flashcards

Flashcards in Joints Deck (68):
1

What is an articulation

Where two bones come together

2

Arthroscopic

The movement at the joint

3

Arthroscopy

The study of joints

4

how are joints classified

by structure and function

5

what are the different categories of functions of joint classification?

synarthrosis

amphiarthrosis

diarthrosis

6

what is synarthrosis

no movement of the joint

7

amphiarthrotic joint

joint that moves a little bit

8

what does a joint that is diarthrosis mean

the joint is freely moveable

9

what are the different structures in joint classification

fibrous joints

cartilaginous joints

synovial joints

10

in joints, when we gain mobility

we loose stability

11

ligaments

connects bone to bone.

they warp around capsule and give support

12

what kind of tissue holds together fibrous joints

dense regular connective tissue

13

examples of fibrous joints

sutures - joints of the skull/head

syndesmoses (interosseous) - b/w tibia/fibula and radius/ulna

gomphosis - teeth

14

what kind of function does gomphosis have?

synarthrosis

15

what kind of function does sutures have?

synarthrosis

16

what are the only bones that are parallel and held together by dense regular tissue?

syndesmoses (interosseous)

17

what kind of function does syndesmoses have?

amphiarthrosis

18

what is the ligament that holds the tooth to the socket of aveolar process?

periodontal

19

how many types of fibrous joints are there

3

20

how many types of cartilaginous joints are there? what are they?

two types

synchondroses

symphyses

21

what holds cartilaginous joints together?

cartilage

22

what kind of cartilage goes from the end of the rib to the sternum?

hyaline cartilage but we call it costal cartilage

costal = rib

flexes but doesn't move

23

synchondroses

no movement

ex growth plate and costal cartilage

24

symphyses

little movement

ex: articulation point of the pubic bones and intervertebral discs

25

what is another name for growth plate

epithesial plate

26

what kind of cartilage makes up the pubic symphyses

fibrocartilage

27

do we have epithesial cartilage our whole life?

no. epithesial cartilage (growth plate) is gone by late teens.

28

what holds joints together?

tensions on muscle

29

how many types of synovial joints are there

1 type
but many components

30

what is the articular capsule made of and what kind of joint is it?

the articular capsule is made out of fibrous membrane and it is a synovial joint.

31

what is the difference between fibrous membrane and synovial membrane and what kind of joint is it a part of?

part of the synovial joint

fibrous is the outside membrane and synovial membrane is the inside membrane

32

what are some examples of synarthrosis besides skull?

ribs
it flexes because of costal cartilage but it doesn't move

pelvis (3 bones)

33

what kind of cartilage is in our femur when we are born?

hyaline cartilage

34

where does the diaphysis grow towards

epiphysis

35

where does the epiphysis grow towards

the diaphysis

36

where does the diaphysis and the epiphysis meet?

hyaline cartilage

37

what does synovial fluid do?

lubricates joints

it can go from a fluid to a solid crystal (type of arthritis)

38

what do you have on the ends of all your bones?

hyaline cartilage but we call it articular cartilage

39

what is the articular fat pads used for? and what color is it?

cushion and energy
it is yellow

40

what does the meiscus look like?

yellow and solid
comes out like a wedge

41

when talking about impact, what cushions the bone?

bursa

42

what is bursa?

little capsule wedge of pillow that bone bounces off of when there is a trauma to that joint

whatever tendons run across that joint and the joint pounds on it, we stick bursa there

43

what is the condition when the fluid inside the bursa crystalizes?

bursitis

44

what happens when you cut tendons?

bones become floppier

45

what do tendons do to the structure of the joint?

connects muscle to bone and give support

46

give a brief structure of bone and muscle

so you have a muscle and then a tendon on each end and the tendon is what anchors it to the bone

47

what is an elongated bursa called?

tendon sheath

48

wherever you have a diarthritic joint in your body, what is holding it in place?

tendons and ligaments

49

what is TMJ stand for?

temple menjibular joint

mastoid: lower jaw

50

if a joint is broken or destroyed, what can you do to get back to normal?

you either have to replace something in there or strengthen the muscle

51

menisci

cartilage

52

where are tendon sheaths located?

in your hand because the muscles are lower down on your forearm

53

what is the bursitis condition?

hardening of synovial fluid in a bursa

54

how do you divide the different types of movements at synovial joints

divide into motions and axis

55

what synovial joints move angular?

humerus and ulna

56

what do gliding and angular give you

the main five movements

- flexion and extension
- lateral flexion
-hyperextension
-abduction and adduction
- circumduction

57

what does the variation of shape in synovial joints determine?

variation in shape governs the range and type of movements possible

58

what are the unaxial synovial joints?

plane joints
hinge joints
pivot joints

59

what are the biaxial synovial joints?

condyloid joints
saddle joints

60

what are the multiaxial synovial joints?

ball and socket joints?

61

how many uniaxial joints are there? biaxial? multiaxial

uniaxial - 3
biaxial - 2
uniaxial - 1

62

what is the most moveable joint we have in our body

shoulder

63

what is the least moveable joint in our body

skull

64

what is the strongest joint in our body

skull

65

what is the weakest joint in our body

the shoulder

66

if the joint is highly mobile, what does it have to have more of?

ligament

67

when people have an arthroplasty, what do they really do?

they really just replace the ball and socket

68

What is a joint

An articulation