MSK - Bones and Joints

Question 0

What are the three classifications of joint type?

Answer 0

Fibrous
Cartilaginous
Synovial

Question 1

What is a joint?

Answer 1

An articulating surface between two or more bones

Question 2

Describe and name a type of fibrous joint

Answer 2

Fibrous joints are fixed, immovable made of fibrous CT

E.g coronal structure in the skull

Question 3

Name and describe cartilaginous joints

Answer 3

Synchondrosis - primary - hyaline cartilage e.g growth plates
Symphysis - secondary - fibrocartilage e.g intervertebral discs

Question 4

Describe a synovial joint

Answer 4

Most common and most movable joint
Ends of bones contain thick slippery liquid called synovial fluid
The articular capsule is continuous with periosteum of bones
Articular cartilage at articulating surfaces.

Question 5

Name the 6 types of synovial joint

Answer 5

Plane 
Hinge
Saddle
Ball and socket
Condyloid
Pivot

Question 6

Describe a plane synovial joint

Answer 6

Permits gliding or sliding movements

E.g acromioclavicular

Question 7

Describe a hinge joint

Answer 7

Permits flexion and extension only e.g elbow

Question 8

Describe a saddle joint

Answer 8

Concave and convex joint surface e.g carpal and metacarpal

Question 9

Describe a condyloid joint

Answer 9

Flexion, extension, adduction, abduction and cicumdantion

E.g metacarpal phalangeal junction (knuckles)

Question 10

Describe the pivot joint

Answer 10

Allows rotation, round bony process fits in bony ligamentous socket
E,g proximal radio ulnar joint