Freely movable joints

Question 1

fibrous or fixed joints

Answer 1

where no movement occurs between concerned bones.
bones are held in place by fibrous connective tissues
- sutures of the skull held by fibrous joints

Question 2

cartilaginous or slightly moveable joints

Answer 2

held in place by cartilage, slight movement
- junction of the two pelvic bones, joints between ribs and sternum

Question 3

synovial joints: types

Answer 3

joints that are freely moveable
- ball and socket
- hinge
- pivot
- gliding
- saddle
- condyloid

Question 4

synovial cavity

Answer 4

synovial cavity is located between articulating surfaces of the bones.

Question 5

articular capsule and its 2 layers

Answer 5

surrounds and encloses the joint, comprised of two layers;
1. fibrous capsule: outer layer that consists of dense, fibrous, connective tissue attached to periosteum of articulating bones. permits movements
2. synovial membrane: inner lauer. loose connective tissue and lots of capillaries. lines nearly the entire joint cavit

Question 6

synovial fluid

Answer 6

secreted by synovial membrane
fills the cavity and helps to keep articulating surfaces from making contact w one another
lubricates joint , provides nourishment
- can increase when inured

Question 7

articular cartilage

Answer 7

covers articulating surfaces of bones - smooth surface for movement

Question 8

articular discs

Answer 8

only in some joints, they divide the cavity into 2, so fluid can be directed to the areas of greatest friction

Question 9

bursae

Answer 9

little sacs of fluid, positioned in some joints so they prevent friction between:
- a bone and a ligament/tendon
- a bone and the skin where a bone inside joint capsule is near body surface

Question 10

ligaments

Answer 10

hold bones together in many joints