Joints

Question 1

What are the three types of joints?

Answer 1

synarthrotic, amphiarthroic, diarthrotic

Question 2

What are synarthrotic joints?

Answer 2

immovable joints, called sutures

Question 3

What is an example of a synarthrotic joint?

Answer 3

skull sutures (coronal, lambdoidal, sagittal, squamous)

Question 4

What is an amphiarthrotic joint?

Answer 4

slightly moveable joint

Question 5

What is an example of an amphiarthrotic joint?

Answer 5

vertebrae

Question 6

What is a diarthrotic joint?

Answer 6

freely movable joints

Question 7

What is a diarthrotic joint?

Answer 7

freely movable joints

Question 8

What are the four types of diarthrotic joints?

Answer 8

ball & socket, pivot, hinge, saddle

Question 9

What are examples of ball & socket joints?

Answer 9

1. shoulder joints (humerus bone in socket of pectoral girdle)
2. hip joints (femur bone in socket of pelvic girdle)

Question 10

What are examples of hinge joints?

Answer 10

1. interphalangeal joints between phalanges of fingers/toes
2. b/w the humerus and ulna & radius
3. b/w the tibia & fibula and talus bone in foot

Question 11

Where are hinge joints located?

Answer 11

between two or more bones where the bones can only move along one axis to flex or extend

Question 12

What is a pivot joint?

Answer 12

permits rotary movement of bones

Question 13

What is an example of a pivot joint?

Answer 13

the pivot joint at the base of the skull connects C1 (atlas) to C2 (axis)

Question 14

What are examples of saddle joints?

Answer 14

1. the carpometacarpal joint of the thumb
2. the calcaneocuboid joint of the heel