Go through the following characterization of Sympathetic and. Parasympathetic Nervous System.
I. Dilates pupil,
II.  Heart rate, BP (Vasoconstriction)  Glycogenolysis, dilates bronchi.
III. Constricts pupil.
IV. Induces ejaculation.
V. Gastric secretion,  salivary secretion, 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

Subtopic:  Autonomic Nervous System: 2 (OLD NCERT) | Autonomic Nervous System (OLD NCERT) |
 79%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

Human body temperature is regulated by the centre located in:

1. Cerebrum                 

2. Cerebellum

3. Medulla                   

4. Hypothalamus

Subtopic:  Diencephalon |
 93%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

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

Subtopic:  Human Eye: Adaptation (OLD NCERT) |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

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

Subtopic:  Hind & Mid Brain |
 88%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Most of the neurons in the cerebral cortex are:

1. Unipolar

2. Bipolar

3. Multipolar

4. Pseudo unipolar

Subtopic:  Nervous System |
 86%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

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

Subtopic:  Nervous System | Synapse |
 68%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

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

                       

            1.  A                   

            2.  B

            3.  C                 

            4.  D

Subtopic:  Inner Ear: Vestibular Apparatus (OLD NCERT) |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Mark the incorrect match?

 1.  Cerebral aqueduct  A canal passes through the midbrain, connecting 3rd ventricle to 4th ventricle of the brain.
 2.  Corpus callosum   Thick band of nerve fibres that divides the cerebral cortex lobes into left and right hemispheres.
 3.  Limbic system    The inner part of forebrain involved in the regulation of sexual behaviour.
 4.  Pons  Consist of fibre tracts that interconnect different regions of the brain.

Subtopic:  Diencephalon |
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

The vestibular apparatus is composed of:

I.   Semi-circular canals

II.  Otolith organs

III. Organ of Corti

IV. Crista and macula

1.  I, II, III & IV

2.  I, II only

3.  IV only

4.  II only

Subtopic:  Inner Ear: Vestibular Apparatus (OLD NCERT) |
 66%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

'Retinal' is present in:

1.  Rods

2.  Cones

3.  Both 1 and 2

4.  All the retinal layer

Subtopic:  Human Eye: Adaptation (OLD NCERT) |
 54%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh