joints

Question 1

What is a joint

Answer 1

where two bones meet a joint if formed, this can remain quite rigid and immovable, as in the skull - but most joints are free moving to allow a wide range of movement and actions

Question 2

Types of synovial joints

Answer 2

ball and socket
hinge
Saddle
Pivot
Gliding
condyloid

Question 3

ball and socket

Answer 3

rounded bone head articulates with the cup-shaped cavity
movement of joint - flexion, extension, adduction, abduction, internal and external rotation

Question 4

Hinge

Answer 4

goes in two directions - uniaxial
movement of joint - flexion, extension

Question 5

Saddle

Answer 5

concave and convex bone surfaces align, generally biaxial
movement of joint - flexion, extension, adduction, abduction, circumduction

Question 6

Pivot

Answer 6

uniaxial joint - only allows rotation
movement of joint - rotation of one bone around another

Question 7

Gliding

Answer 7

two flat bones fly past each other - in a biaxial manner

Question 8

Condyloid

Answer 8

goes in two directions, allows slight rotation - biaxial
movement of joint - flexion, extension, adduction, abduction, circumduction