Joints

Question 1

What are the 3 types of joints (in terms of movement)?

Answer 1

Synarthroses - immovable (joints between bones of skull)
Amphiarthroses - limited mobility (joint that unites bodies of adjacent vertebrae)
Diarthroses - freely movable (uniaxial, biaxial, multiaxial)

Question 2

Cartilaginous joints (fibro or hyaline cartilage)

Answer 2

Synchondroses - bones united by single layer of hyaline cartilage
Symphysis - articulating surfaces of bones covered in hyaline cartilage with a layer of fibrocartilage between them

Question 3

Fibrous joints (Dense CT) - add detail/incomplete

Answer 3

Sutures
Syndesmosis
Gomphosis

Question 4

Synovial joint

Answer 4

Articulating bones covered in hyaline cartilage (hard and smooth, allows bones to move)
Synovial membrane secretes synovial fluid into joint cavity (lubricates articular cartilage)

Question 5

What are different types of synovial joint?

Answer 5

Gliding joint - joint surfaces flat, equal length
Hinge joint - allows movement about 1 axis
Pivot joint - movement occurs at singular axis with 1 bone rotating around another
Ellipsoid joint -
Ball and socket joint - Multiaxial joint
Saddle joint - Where 2 surfaces are reciprocally concave or convex (Ying and yang)

Question 6

Joint arthrokinematics

Answer 6

Specific movement of joint surfaces
Roll
Spin
Glide