Skeletal System - Types of Joints

Question 1

What type of joint is not flexible?

Answer 1

Fibrous joint

Question 2

Three types of joints: ________, ________, and ________.

Answer 2

Fibrous, cartilaginous, and synovia joints

Question 3

What type of joint is a little flexible?

Answer 3

Cartilaginous

Question 4

What type of joint is very flexible?

Answer 4

Synovia Joint

Question 5

How many types of fibrous joints are there and where are they found?

Answer 5

There are three types:
A. Suture (cranium)
B. Gomphosis (teeth to jaw bone)
C. Sydesmosis ligament wrap (radius & ulna, tibia & fibula) (can be twisted but NO FLARE).

Question 6

How many types of cartilaginous joints are there and where are they found?

Answer 6

There are two types:
A. Sychondrosis (ribs to sternum)
B. Symphysis (vertebrae to vertebrae)

Question 7

How many types of synovia joints are there?

Answer 7

There are six types.

Question 8

Synovial Joint Type: Hinge
* description ________
* mvm allowed ________
* ex locations ________

Answer 8

• convex surface of one bone ‘articulates,’ is fixed to, a concave other bone
• flexion & extension only
• ex: elbow

Question 9

Synovial Joint Type: Pivot
* description ________
* mvm allowed ________
* ex locations ________

Answer 9

• cylindrical surface of a bone fixed with a ring of bone + ligament
• rotation
• ex: radius & elbow, ulna & carpal

Question 10

Synovial Joint Type: Ball & Socket
* description ________
* mvm allowed ________
* ex locations ________

Answer 10

• ball shaped head of one bone fits into a cup shaped socket of another
• widest range of motion
• ex: shoulders (easier to dislocate b/c of shallower sockets) and hips (more stable b/c the joint is deeper)

Question 11

Synovial Joint Type: Condyloid (Ellipsoid)
* description ________
* mvm allowed ________
* ex locations ________

Answer 11

• oval shaped bone fits with an elliptical cavity of another.
• like ball & socket BUT NO ROTATION
• ex: radius to carpal.

Question 12

Synovial Joint Type: Saddle
* description ________
* mvm allowed ________
* ex locations ________

Answer 12

• both bone surfaces have concave and convex sides
• movement across 2 axis
• ex: thumb to carpal

Question 13

Synovial Joint Type: Plane
* description ________
* mvm allowed ________
* ex locations ________

Answer 13

• the bone surfaces are flat/slightly curved
• tightly bound but still flexible
• rotate (neck) / slide/glide (carpals/tarsals)