Melanin and Lewy bodies occur in the neurons in case of

Which of the following is an odd nerve?

Draw labelled diagrams of the following:
$(a)$ Neuron
$(b)$ Brain
$(c)$ Eye
$(d)$ Ear

You are watching a horror movie and you notice that your heart is beating fast and mouth is dry. This is due to:

Which of the following is/are controlled by the human brain?
$(a)$. Balance of the body
$(b)$. Circadian rhythm of the body
$(c)$. Human behaviour
$(d)$. Functioning of heart and kidneys

Glucose and oxygen are required by the brain for a constant supply of energy to control the functions of our body organs. What will be the consequences if the brain is deprived of oxygen and glucose?
$I.$ Brain deprived of oxygen for just $5$ minutes will get permanently damaged.
$II.$ Glucose is important in the nerve impulse conduction.
$III.$ One side of the brain is unable to know what the other side is doing when it is deprived of oxygen.
$IV.$ Mental confusion will result if the brain is deprived of glucose.