Neural control and coordination practice · Hard

The human hind brain comprises three parts, one of tissue cells which is

Choose the odd one w.r.t. neurotransmitters

The cranial meninges from outer to inner region of the brain are:

Assertion (A): Nerve impulse conduction is one way conduction.

Reason (R): Neurotransmitter are only present at axon terminals.

Which of the following cranial nerve controls the movement of tongue?

Which of the following statement is true regarding the role of acetycholine in nerve physiology?

Which of the following statement(s) is/are false about the electrical synapse?

(a) Electrical current can flow directly from one neuron into the other across the synapses.

(b) At electrical synapses, the membranes of pre and post-synaptic neurons are in very close proximity.

(c) Electrical synapses are rare in our system.

(d) Electrical synapses pass electrical signals between cells with the use of acetylcholine.

(e) Electrical synapses are fast.

(f) Transmission of an impulse across electrical synapses is very similar to impulse conduction along single axon.

Which of the following structures is not a part of prosencephalon/forebrain?

During the conduction of nerve impulse, the repolarization occurs with the

Consider the statements as True/False
I. The axoplasm inside the axon contains high concentration of ${K^ + }$ and negatively charged proteins
II. The axoplam inside the axon contains low concentration of $N{a^ + }$
III. The fluid outside the axon contains a low concentration of ${K^ + }$
IV. The fluid outside the axon contains a high concentration of $N{a^ + }$ and negatively charged proteins
The correct option is

If the threshold for hearing increasing 1000 times, the hearing loss is

Length of the spinal cord is

Which of the following is not involved in the knee jerk-reflex?

Read the following statements w.r.t. synapse
A. Chemical synapse may allow two-way transmission of impulses
B. Neurotransmitters are mandatory for transmission of impulses in all synapse
C. It is always formed by the membranes of a pre-synaptic neuron and a post-synaptic neuron
D. Electrical synapses are rare in our body
State these statements as true(T) or false(F) and choose the correct option.

A person went to ophthalmologist. He had a problem in reading because he was not able to

In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed would drive

Small passage which maintains the continuity between scala tympani and scala vestibule is

Select the incorrect statement w.r.t. human neural system

Lens of eyes is derived from

Which of these processes occur during repolarisation of nerve fibre?1. Open $N{a^ + }$ channel2. Closed $N{a^ + }$ channel3. Closed ${K^ + }$ channel4. Open ${K^ + }$ channel

Assertion (A): Nervous system and endocrine system jointly co-ordinate and integrate activities of organs.

Reason (R): Endocrine system regulate all the activities of nervous system.

Which part of Limbic system converts short term memory into Long term memory?

Carotid labyrinth contains

Scientists were able to pinpoint the location of colour processing centers in the visual cortex of the brain by means of

Visceral nervous system within human body;

(A) is the division of peripheral nervous system

(B) is the division of central nervous system

(C) impulse travel from visceral organ to CNS.

Which of the following option is the most appropriate?

The membrane which is responsible to discriminate among different pitches of sound is

A single Schwann cell can myelinate how many axon(s)?

Following are the steps of mechanism of vision in random order
I. Neural impulses are analysed and image formed on retina is recognised by visual cortex
II. Membrane permeability changes
III. Ganglion cells are excited
IV. Bipolar cells are depolarized
V. Action potential (impulse) is transmitted by optic nerves to visual cortex
VI. Potential differences are generated in the photoreceptor cells
VII. Light energy causes a change in shape of rhodopsin, leading to the dissociation of retinal (an aldehyde of vitamin-A) from opsin (a protein)
VIII. Structure of opsin is changed
Choose the correct sequence

Identify the correctly matched

Centre of autonomic nervous system is located in