Oil producing gland in the skin?

Pinna (External ear) is the characteristic of

Sound ‘impulses’ are carried to the brain by?

Rods and cones are sensory cells found in the

The auditony nerve carries sound waves from inner ear to

The outermost protective covering of skin?

In ear balancing is done by

The innermost layer of eye is known as?

Photoreceptors used for coloured vision is?

The iris of the eye is on extension of