Five events in the transmission of nerve impulse across the synapse -

A.	Opening of specific ion channels allows the entry of ions, a new action potential is generated in the post-synaptic neuron
B.	Neurotransmitter binds to the receptor on post-synaptic membrane.
C.	Synaptic vesicle fuses with pre-synaptic membrane, neurotransmitter releases into synaptic cleft
D.	Depolarization of pre-synaptic membrane
E.	Arrival of an action potential at the axon terminal

In which sequence do these events occur?

1. E$\to$ D$\to$ C $\to$B $\to$A
2. A $\to$B $\to$C $\to$D$\to$ E
3. A $\to$B $\to$D $\to$C $\to$E
4. E $\to$D $\to$C $\to$A $\to$B

Mark the correct statement:

Go through the following characterization of Sympathetic and. Parasympathetic Nervous System.
I. Dilates pupil,
II. $\uparrow$ Heart rate, BP (Vasoconstriction) $\uparrow$ Glycogenolysis, dilates bronchi.
III. Constricts pupil.
IV. Induces ejaculation.
V. $\uparrow$Gastric secretion, $\uparrow$ salivary secretion, $\uparrow$peristalsis.
VI. Erection and urination.
1. Sympathetic - III, V, VI; Parasympathetic - I, II, IV
2. Sympathetic - I, II, IV; Parasympathetic - III, V, VI
3. Sympathetic M II, IV, VI; Parasympathetic - I, III, V
4. Sympathetic - I, III, V; Parasympathetic - II, IV, VI

Human body temperature is regulated by the centre located in:

1. Cerebrum                 

2. Cerebellum

3. Medulla                   

4. Hypothalamus

In the human eye, there are three types of cones – red, blue, and green. When these cones are stimulated equally, a sensation for which of the following colors would be produced?
1. White
2. Black
3. Orange
4. Yellow

The vomiting center in the humans is located in the:
1. Medulla oblongata
2. Pons varolii
3. Hypothalamus
4. Thalamus

Most of the neurons in the cerebral cortex are:

1. Unipolar

2. Bipolar

3. Multipolar

4. Pseudo unipolar

The number of correct statements amongst the given statements is:

I. Somatic neural system relays impulses from the CNS to smooth muscles of the body.

II. Myelinated nerve fibers are found in spinal nerves but not in cranial nerves.

III. Sodium-potassium pump transports 3 sodium outwards and 2 potassium into the cell.

IV. Electrical synapses are rare in our system.

V. Efferent neurons carry signals from the CNS to the effector.

   1.  2         

   2.  3

   3.  4         

   4.  5

In the given diagram of cochlea, the tectorial membrane is represented by the letter:

            1.  A                   

            2.  B

            3.  C                 

            4.  D

Mark the incorrect match?