Distinguish between (Any four):
$(a)$ Afferent neurons and Efferent neurons
$(b)$ Impulse conduction in a myelinated nerve fibre and an unmyelinated nerve fibre
$(c)$ Aqueous humour and vitreous humour
$(d)$ Blind spot and Yellow spot
$(e)$ Cranial nerves and Spinal nerves

Which of the following cranial nerves are classified as mixed nerves?

Injury to the $Vagus$ nerve ($CN$ $X$) in humans is not likely to affect which of the following?

Read the following statements.
$I.$ Preganglionic nerve fibres of $III, VII, IX$ and $X$ cranial nerves are a part of the parasympathetic nervous system.
$II.$ $V, VII, IX$ and $X$ cranial nerves are mixed nerves.
$III.$ Trochlear nerves are the largest cranial nerves.
$IV.$ Abducens nerves are motor nerves and originate from the Gasserian ganglia.
Which of the above statements are correct?

Read the following statements :-
$(A)$ Sympathetic nervous system accelerates heart beat rate.
$(B)$ The junction between the axon of one neuron and the sarcolemma of a muscle is known as a neuromuscular junction,not a synapse.
$(C)$ The midbrain integrates visual,auditory,and tactile inputs.
$(D)$ The limbic system consists of fiber tracts that interconnect different regions of the brain and is primarily involved in the regulation of sexual behavior,expression of emotional reactions,and motivation,rather than controlling movement.
Choose the option from given below which includes correct statements.

$I.$ The endocrine system provides chemical integration through hormones.
$II.$ The neural system provides an organized network of point-to-point connections for quick coordination.
$III.$ The neural organization is very complex in lower invertebrates.
$IV.$ The human neural system includes $CNS$ and $PNS$.
Select the correct statements.