Question

Which of the following are correct or true:

a. The interventricular foramen (of Monro) connects the lateral and 3rd ventricles.
b. The cerebral aqueduct connects the 3rd and 4th ventricles together.
c. The corpora quadrigemina is found in the midbrain.
d. The corpus callosum is lcoated in the cerebelli hemispheres
e. a, b and c only

Answer 1

E. a, b, and c only

Step-by-step explanation:

There are four ventricles in the human brain filled with the cerebro-spinal fluid. All the ventricles are connected to one another. The first two ventricles called I and II are together called as lateral ventricles present in the fore brain region and are connected to the third ventricle (III) by foramen of monro or inter ventricular foramen. The III ventricle lying in the diencephalon region is connected to the IV ventricle in the pons by iter or cerebral aqueduct. Cerebral aqueduct is also called as aqueduct of sylvius.

Corpora quadrigemina is found in mid brain, it contains two superior colliculi which control visual reflexes and two inferior colliculi which control auditory reflexes.

The two cerebral hemispheres are connected at the inferior by corpus callosum. It is around 10 cm long bundle of nerve fibers, a band of white matter.