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Flashcards in Articulations Deck (30):
1

3 classifications of joints according to function

-Synarthrose- non movable
-Amphiarthroses- slightly movable
-Diarthroses- Freely movable

2

Synarthroses

Non-movable joint- ex suture

3

Amphiarthrose

Slightly movable

4

Diarthroses

-Freely movable- ex shoulder

5

3 types of fibrous joints and 2 types of cartilaginous joints

Fibrous joints
-suture- (cranial bone) bone connective tissue bone
no joint cavity (synarthrosis)
-syndesmosis (radius-ulna) bone fibrous connective tissue bone (amphiarthrosis)
-gomphosis (root of tooth and alveoli) (synarthrosis)
Cartilaginous joints---- bone cartilage bone
-synchondrosis- epiphyseal plate or sternacostal 1
-symphysis- bone fibrocartilge bone---
Intervertebral discs, symphysis pubis (amphiarthrosis)

6

Describe three major components of a synovial joint.

-Bone space bone
- there is a joint cavity filled with synovial fluid made by the membrane
-there is an outer fibrous joint capsule as well as ligaments holding bones in place.
-menisci- pads of fibrocartilage in the knee joint
-Bursae-cushion, some joints have this in high areas of friction

7

Flexion

decreasing
flexion of shoulder joint is when you swing your arm forward, flexion of the hip is when you swing your thigh forward

8

dorsiflexion

of ankle stand on heel, toes to sky

9

extension

increasing angle
Extension of knee is straightening it, extension of shoulder/hip is swinging arm/thigh backwards.

10

hyperextention

increasing angle past anatomical position

11

rotation

turn medial and lateral

12

circumduction

turning 360- head circles

13

inversion

soles facing foot

14

eversion

soles facing away

15

adduction

away from boddy

16

abduction

towards body

17

planter flexion

standing on tippy toes

18

protraction

jaw bone forward

19

retraction

jaw bone back

20

supination

lateral rotation hands up

21

pronaton

palms down

22

elevation

up

23

depression

down

24

name the 6 types of synovial joints

1. gliding
2. hinge
3. pivot
4. elliposoidal
5. Saddle
6. ball and sockey

25

Gliding

flat against flat, side to side, back and forth
inter carpal/tarsal, acrominoclavicular, inbetween vertabrae

26

Hinge

-Spool shape in a cup
- flexion, extention
-elbow ankle, trocular notch of humuros and ulna

27

Pivot

Dense of the Atlas and Axis, rotation to shake head no.

28

Ellipsoidal

Egg in spoon
-radio carpal, metacarpophalangeal

29

Saddle

-egg tilted in spoon (think thumb) pollex
-Same as ellipsoidal but freerer

30

Ball and Socket

Rotation, flext extend, circomduct
-hip, shoulder