Joints

Question 1

Definition of joint

Answer 1

A joint is a site where 2 or more bones are articulated

Question 2

Classifications of joints

Answer 2

Fibrous joints
Cartilaginous joints
Synovial joints

Question 3

Fibrous joints types

Answer 3

Sutures 
Gomphosis (peridontal ligaments)
Syndesmosis (2 bony surfaces connected by interosseous ligament) (Inferior tibo-fibular joint, middle radio-ulnar)

Question 4

Cartilagenous bone types

Answer 4

Primamry: Connected by hayaline cartilage, quite immobile, temporary

Secondary: connected by fibrocartlage, limted degree of movement, permenant

Question 5

Primary Cartilagenous example

Answer 5

Epiphyseal cartilage plate

1st costochondral joint

Question 6

Secondary Cartilagenous example

Answer 6

Intervertebral disc.
Symphysis pubis
Manubriosternal joint

Question 7

Synovial joints

Answer 7

Bones involved are linked together by fibrous capsule which is lined by synovial membrane, freely mobile

Question 8

Plane joints

Answer 8

Vertebral articular processes
Proximal tibiofibular joint
Acromioclavicular and sternoclavicular joints
Intercarpal and intermetacarpal joints

Question 9

Pivot joint

Answer 9

Movement is only rotation
Atlanto-axial joint
Superior and inferior radioulnar joints

Question 10

Hinge joint

Answer 10

movemments are only flexsion and extension
Elbow joint
Knee joint
interphalangeal joints

Question 11

Condyloid

Answer 11

Biconcave articulate with biconvex

Metacarpo-phalyngeal and metatarso-phalyngeal joints

Question 12

Ellipsoid joints

Answer 12

Elliptical iconcave articulates with elliptical biconvex
Wrist joint
Atlanto-occipital joint

Question 13

Saddle joint

Answer 13

concavo-convex artiulated with a convexo-concave

carpo-metacarpal joints of the THUMB

Question 14

Poly-axial (Ball and socket)

Answer 14

A hemispherical head which fits into a cup shapped surface

Shoulder joint and hip joint