joints

Question 1

main function of joints?

Answer 1

come into contact/articulate w each other, increase mobility of body + limbs

Question 2

classified 2 ways

Answer 2

• shape
  -type of tissue that connects bones

Question 3

factors in stability

Answer 3

The shape of the bones and whether they interlock with each other or not

The area over which the bones are in contact

The flexibility of the ligaments

The influence of other soft tissue structure (muscles, tendons, joint capsules)

Question 4

ligaments

Answer 4

strong tissue that connect from bone to bone - strap like band or cord and pass over joint for stability

Question 5

types of joints

Answer 5

fibrous, cartilaginous, synovial

Question 6

fibrous joints

Answer 6

have a thin layer of fibrous tissue connecting the edges of the two bones. Ex: Sutures in the skull

Question 7

Cartilaginous joints

Answer 7

bones separated by fibrocartilage disc (discs between vertebrae) or a thick layer of hyaline cartilage (ribs connecting to sternum).

Question 8

synovial joints

Answer 8

(most common and most important for movement)

Question 9

synovial cont

Answer 9

Gliding Joints
Hinge Joint
Pivot Joint
Condyloid Joint
Saddle Joint
Ball and Socket Joint

Question 10

gliding joints

Answer 10

Least movement, flat bones, glide side to side (Ex: tarsals, carpals).

Question 11

hinge joint

Answer 11

Bend/Flex only one direction (Ex: elbow).

Question 12

condyloid joint

Answer 12

Oval surface fits into concave surface (Ex: wrist).

Question 13

saddle joint

Answer 13

shaped like a saddle and rider and can move two directions (Ex: Between thumb and fingers)

Question 14

ball and socket

Answer 14

Can move in all directions, sphere fits in rounded cavity (Ex: Shoulder and Hip)

Question 15

pivot joint

Answer 15

One bone forms a ring and the other bone rolls allowing rotation (Ex: Your neck to head).