Which one of the following pairs of structures is correctly
matched with their correct description

Structures

Description
(a)
Tibia and fibula

Both form parts of knee
joint
(b)
Cartilage and cornea

No blood supply but do
require oxygen for
respiratory need
(c)
Shoulder joint and
elbow joint

Ball and socket type of joint
(d)
Premolars and molars

20 in all and 3- rooted

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Solution

The correct option is A a
The knee joint has three parts. The thigh bone (the femur) meets the large shin bone (the tibia) to form the main knee joint. This joint has an inner (medial) and an outer (lateral) compartment.
So, the correct option is 'A'.

Suggest Corrections

	Structures	Description
(a)	Tibia and fibula	Both form parts of knee joint
(b)	Cartilage and cornea	No blood supply but do require oxygen for respiratory need
(c)	Shoulder joint and elbow joint	Ball and socket type of joint
(d)	Premolars and molars	20 in all and 3- rooted

Structure	Description
(a) Tibia and fibula	Both form parts of knee joint
(b) Cartilage and cornea	No blood supply but do require oxygen for respiratory need
(c) Shoulder joint and elbow joint	Ball and socket type of joint
(d) Premolars and molars	20 in all and 3 rooted