joints/articulations

5.0(1)
studied byStudied by 2 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/38

flashcard set

Earn XP

Description and Tags

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

39 Terms

1
New cards
joint
place where two bones come together
2
New cards
structural classification
based on what structure holds 2 bones together
3
New cards
structural classifications of joints (3)
* fibrous joints
* cartilaginous joints
* synovial joints
4
New cards
fibrous joints
bones are joined by fibrous cartilage
5
New cards
cartilaginous joints
bones are joined by cartilage
6
New cards
synovial joints
bones are joined by an articular capsule which creates a joint cavity containing synovial fluid
7
New cards
functional classification
based on how much movement occurs at that joint
8
New cards
functional classifications of joints (3)
* synarthrotic joints
* amphiarthrotic joints
* diarthrotic joints
9
New cards
synarthrotic joints
no movement
10
New cards
amphiarthrotic joints
some movement
11
New cards
diarthrotic joints
freely movable
12
New cards
articular cartilage
found in all synovial joints; absorbs compression so the bone won’t be crushed

* hyaline cartilage covers the opposing bone surfaces
13
New cards
joint/articular capsule
found in all synovial joints; surrounds the joint cavity and has two layers:

* an outer fibrous capsule continuous with the periosteum
* an inner synovial membrane
14
New cards
joint cavity
found in all synovial joints; cavity that contains synovial fluid
15
New cards
synovial fluid
found in all synovial joints; slippery fluid that occupies all free space within the joint capsule

* reduces friction between the cartilages
* distributes nutrients
16
New cards
reinforcing ligaments
found in some synovial joints; reinforce the joint
17
New cards
bursae
found in some synovial joints; small, fluid-filled pockets that contain synovial fluid to reduce friction and absorb shock
18
New cards
suture
joint between skull bones

* structural classification: fibrous
* functional classification: synarthrotic
* example: sutures
19
New cards
syndesmosis
ligament connects two bones

* structural classification: fibrous
* functional classification: amphiarthrotic
* example: ligaments connecting bone
20
New cards
gomphosis
a peg-in socket joint

* structural classification: fibrous
* functional classification: synathrotic
* example: teeth joints
21
New cards
synostosis
formed when two bones completely fuse together

* structural classification: none
* functional classification: synarthrotic
* example: fusion of ilium, ischium, and pubis
22
New cards
synchondrosis
hyaline cartilage joins two bones

* structural classification: cartilaginous
* functional classification: synarthrotic
* example: true rib joint
23
New cards
symphysis
fibrocartilage joins two bones

* structural classification: cartilaginous
* functional classification: amphiarthrotic
* example: pubic symphysis joint
24
New cards
synovial joints
joint capsule joins two bones

* structural classification: synovial
* functional classification: diarthrotic
* example:
25
New cards
ball and socket joints
mostly freely movable of the synovial joints
26
New cards
pivot joints
allows for rotational movement
27
New cards
hinge joints
allows for flexion/extension movement
28
New cards
gliding joints
allows for only slight sliding movements
29
New cards
ellipsoidal joint
allow for flexion/extension and circumduction but not rotation
30
New cards
saddle joint
allow for flexion/extension and circumduction but not rotation
31
New cards
shoulder joint
* structural type: synovial; ball and socket
* functional type: diarthrotic
* movements: lots of movement
32
New cards
elbow joint
* structural type: synovial; hinge
* functional type: diarthrotic
* movements: flexion/extension
33
New cards
atlanto-axial joint
* structural type: synovial; pivot
* functional type: diarthrotic
* movements: rotation
34
New cards
proximal & distal radio-ulnar
* structural type: synovial; pivot
* functional type: diarthrotic
* movements: rotation
35
New cards
carpometacarpal of thumb joint (thumb joint)
* structural type: synovial; saddle
* functional type: diarthrotic
* movements: flexion/extension and circumduction
36
New cards
metacarpophalangeal joint (knuckle joint)
* structural type: synovial; saddle
* functional type: diarthrotic
* movements: flexion/extension and circumduction
37
New cards
hip joint
* structural type: synovial; ball and socket
* functional type: diarthrotic
* movements: lots of movement
38
New cards
knee joint
* structural type: synovial; hinge
* functional type: diarthrotic
* movements: flexion/extension
39
New cards
intercarpal & intertarsal joints
* structural type: synovial; gliding/plane
* functional type: diarthrotic
* movements: gliding movements