Joints

Question 1

Where are Joints formed?

Answer 1

They are formed where two or more bones meet.

Question 2

What are the two functions of Joints,

Answer 2

The two functions of joints are stability and mobility.

Question 3

What are the THREE STRUCTUAL classifications of joints?

Answer 3

The three structural classifications are:
Fibrous,
cartilaginous
and synovial

Question 4

What are the three FUNCTIONAL classifications of joints?

Answer 4

The three FUNCTIONAL classifications of joints are:
Synarthrosis (immovable)
Ampiathrosis (slightly moveable)
Diathrosis (freely moveable)

Question 5

What are the general structures of a SYNOVIAL JOINT?

Answer 5

The Articular Cartilage
Joint Cavity (contains synovial fluid)
The articular capsule which contains:
1. fibrous layer and
2. synovial membrane.

Question 6

What are the THREE types of fibrous joints and provide examples.

Answer 6

1. Suture - junctions in the skull
2. Syndemosis - anterior tibiofibular ligament
3. Gomphosis - tooth socket is the only example

Question 7

Describe the SUTURE joint

Answer 7

held together by very short, interconnecting fibres and bone edges interlock.
FOUND IN SKULL

Question 8

Describe SYNDESMOSIS joints

Answer 8

Held by a ligament. Length varies.

Question 9

Describe the GOMPHOSIS joints

Answer 9

Gomphosis joints are described as “peg in socket” fibrous joiint. Only found in the the TEETH.

Question 10

What are the 2 CARTILAGINEOUS joints

Answer 10

Primary or SYNCHONDROSES

Secondary or SYMPHYSES

Question 11

Are Synathrosis joints moveable?

Answer 11

No. Synathrosis joints are completely immovable. These are located in the skull and teeth.