EVERYDAY SCIENCE

Detailed explanation-1: -Answer and Explanation: The correct answer is (E): sphenoidal lobe.

Detailed explanation-2: -Answer and Explanation: Of the above answer choices, the one that is not part of or associated with the diencephalon is the D. arbor vitae. The arbor vitae is the white matter of the cerebellum that lies in the deeper part of the cerebellum and functions to execute fine motor control in the body.

Detailed explanation-3: -The diencephalon is the central portion of the brain located around the third ventricle, superior to the brainstem (medulla, pons and midbrain), and inferior to the corpus callosum and cerebral cortex. It is divided into four main parts including the epithalamus, thalamus, subthalamus, and hypothalamus.

Detailed explanation-4: -The three segments of the diencephalon are called prosomere 3, prosomere 2, and prosomere 1, from rostral to caudal. Each of the three prosomeres has alar and basal components, of which the alar parts are most prominent.

Detailed explanation-5: -The cerebrum consists of two cerebral hemispheres the outer layer called the cortex (gray matter) and the inner layer (white matter). There are four lobes in the cortex, the frontal lobe, parietal lobe, temporal lobe, occipital lobe.