Question

Largest Cavity in the brain is called as-
A. Diocoel
B. Paracoel
C. Metacoel
D. Rhinocoel

Answer 1

Hint: Brain is the central working system of our body. It controls and coordinates all the functions of our body. Brain performs various vital functions like locomotion, thinking, imagination, dreaming, analyzing etc. The brain is as important as the heart. There are millions of nerve cells and neurons present in the brain which are spread throughout the body. These nerve cells carry information in them which the brain processes and get access to.

Complete answer:
Option A: Diocoel- Diocoel is the part of four ventricular systems in the brain. It Is a part of four interconnected ventricles. Among the four ventricles the diocoel is the third segment of the ventricular system.
So, option A is not correct.
Option B: Paracoel- it is also part of the ventricular system. It is the first and second ventricles of the brain. It is the largest cavity in the brain.
Option B is correct.
Option C: Metacoel- metacoel is the part of the ventricular system too. It is the cavity of medulla oblongata. Hence medulla is the last part of the brain. It is the fourth ventricle of the brain.
Option C is not correct.
Option D: Rhinocoel- rhino is defined to be the cavity for the olfactory lobe in the brain. It controls and functions for the olfactory organ in the body.
Option D is not correct.

So, Option B is the correct answer.

Note:
Brain as we knew, have CSF-cerebrospinal fluid, which is present in between the meningitis of the brain. Its function is to prevent brain damage. The brain has soft nodal tissues and cells and neurons which can be damaged easily. Hence the fluid acts as a shock-absorber and prevents the organ from damaging. Brain has three parts: cerebrum, cerebellum and medulla. From medulla the vertebrae are attached. Cerebrum is the forebrain part, midbrain is the cerebellum. And hind is medulla.