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
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?
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. |
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
'Retinal' is present in:
1. Rods
2. Cones
3. Both 1 and 2
4. All the retinal layer