1. Briefly describe the structure of the following:
(a) Brain (b) Eye
(c) Ear
Answers
Answer:
Brain
The brain has three main parts: the cerebrum, cerebellum and brainstem. Cerebrum: is the largest part of the brain and is composed of right and left hemispheres. ... Cerebellum: is located under the cerebrum. Its function is to coordinate muscle movements, maintain posture, and balance.
Eye
The eye contains a transparent, biconvex, and elastic structure just behind the iris. It is known as lens. The lens is held in position by suspensory ligaments attached to the ciliary body. The lens divides the eye ball into two chambers – an anterior aqueous and posterior vitreous chamber.
Ear
External ear: It consists of pinna, external auditory meatus, and a tympanic membrane. (a) Pinna is a sensitive structure that collects and directs the vibrations into the ear to produce sound.
