Summary of Joints

Question 1

Type: FIBROUS
Description:
Movement:
Example:

Answer 1

• no synovial (joint cavity); bones held together by a thin layer of fibrous tissue or dense fibrous tissue
• -
• -

Question 2

Type: SUTURE
Description:
Movement:
Example:

Answer 2

• found only b/w bones of the skull; articulating bones separated by a thin layer of fibrous tissue
• none (synarthrotic)
• i.e.= lambdoidal suture b/w occipital & parietal bones

Question 3

Type: SYNDESMOSIS
Description:
Movement:
Example:

Answer 3

• articulating bones united by dense fibrous tissue
• slight (amphiarthrotic)
• i.e.= distal ends of tibia & fibula

Question 4

Type: GOMPHOSIS
Description:
Movement:
Example:

Answer 4

• cone-shaped peg fits into a socket; articulating bones separated by periodontal ligament
• none (synarthorotic)
• i.e.= roots of teeth in alveoli (sockets)

Question 5

Type: CARTILAGINOUS
Description:
Movement:
Example:

Answer 5

• no synovial cavity; articulating bones united by cartilage
• -
• -

Question 6

Type: SYNCHONDROSIS
Description:
Movement:
Example:

Answer 6

• connecting material is hylaine
• none (synarthrotic)
• i.e.= temporary joint b/w cartilage. the diaphysis & epiphyses of a long bone & permanent joint b/w true ribs & sternum

Question 7

Type: SYMPHYSIS
Description:
Movement:
Example:

Answer 7

• connecting material is a broad, flat disc of fibrocartilage
• slight (amphiarthrotic)
• i.e.= intervertebral joints & symphysis pubis

Question 8

Type: SYNOVIAL
Description:
Movement:
Example:

Answer 8

• synovial cavity & articular cartilage present; articular capsule composed of an outer fibrous capsule & an inner synovial membrane; may contain accessory ligaments, articular discs (menisci) & bursae.
• freely moveable (diarthrotic)
• -

Question 9

Type: GLIDING
Description:
Movement:
Example:

Answer 9

• articulating surfaces usually flat
• nonaxial
• i.e.= intercarpal & intertarsal joints

Question 10

Type: HINGE
Description:
Movement:
Example:

Answer 10

• spool like surface fits into a concave surface
• monaxial (flexion-extention)
• i.e.= elbow, ankle & interphalangeal joints

Question 11

Type: PIVOT
Description:
Movement:
Example:

Answer 11

• rounded, pointed or concave surface fits into a ring formed partly by bone & partly by a ligament
• monaxial (rotation)
• i.e.= atlantoaxial & radioulnar

Question 12

Type: ELLIPSOIDAL
Description:
Movement:
Example:

Answer 12

• oval-shaped condyle fits into an elliptical cavity
• biaxial (flex/ext, abd/add.)
• i.e.= radiocarpal joints

Question 13

Type: SADDLE
Description:
Movement:
Example:

Answer 13

• articular surface of one bone is saddle-shaped and the articular surface of the other bone is shaped like a rider sitting in the saddle
• biaxial (flex/ext, abd/add)
• i.e.= carpometacarpal joint of thumb

Question 14

Type: BALL & SOCKET
Description:
Movement:
Example:

Answer 14

• ball-like surface fits into a cup-like depression
• triaxial (flex/ext, abd/add, rotation/circumduction)
• i.e.= shoulder & coxal (hip) joints