Joints

Question 1

What are the 3 classifications of joints?

Answer 1

Fibrous
Cartilaginous
Synovial

Question 2

What are the two types of cartilaginous joints?

Answer 2

SYNCHONDROSES (primary)
- allow bone growth
- ossify in adults
- no movement

SYMPHYSES (secondary)
- do not ossify with age
- found in midline
- limited movement

Question 3

What type of joint has a cavity?

Answer 3

Synovial

Question 4

What are the 6 types of SYNOVIAL joints

Answer 4

• hinge
• saddle
• plane
• pivot
• condylar/ellipsoid
• ball and socket

Question 5

What are FIBROUS joints? Give an example

Answer 5

Dense fibrous connective tissue
High tensile strength
Little movement in adults

Eg. Cranial sutures

Question 6

What are CARTILAGINOUS joints?

Answer 6

Layers of cartilage

Question 7

What does SYNCHRONDROSES allow for?

Answer 7

Bone GROWTH
Disappears in adults
No movement

Question 8

Where are SYMPHYSES found?

Answer 8

In midline of body
Limited movement
Do not ossify with age

Question 9

What type of joint has the greatest movement?

Answer 9

Synovial

Question 10

Abduction

Answer 10

Movement of limb away from midline

Question 11

Adduction

Answer 11

Movement of limb towards midline

Question 12

Circumduction

Answer 12

Circular movement

Question 13

Lateral

Answer 13

Flipping limb outward

Question 14

Medial

Answer 14

flipping limb inward

Question 15

Supination

Answer 15

Palm facing upwards

Question 16

Pronation

Answer 16

Palm Face if downwards

Question 17

Dorsi-flexion

Answer 17

Toes pointing up

Question 18

Plantarflexion

Answer 18

Toes pointing downwards

Question 19

Why are anastomoses common around joints?

Answer 19

So blood flow can take alternative routes (when extreme compression of blood vessels occur, blood can take alternative routes)