Q. No.The figure shows an axon terminal and synapse. Select the option giving correct identifications of labels A-D.
1. A-Action potential C-Neurotransmitter
2. B-Neurotransmitter D-Receptor capsules
3. C-Receptor D-Synaptic vesicles
4. A-Axon terminal B-Serotonin complex
1. C-Mid brain D-Cerebellum
2. A-Cerebrum C-Pons
3. B-Corpus callosum D-Medulla
4. A-Cerebral hemispheres B-Cerebellum
Select the answer with correct matching of the structure, its location and function:
| A | B | C | |
| 1. | Cerebellum | Mid brain | Controls respiration and gastric secretions |
| 2. | Hypothalamus | Fore brain | Controls body temperature, urge for eating and drinking |
| 3. | Blind spot | Near the place where optic nerve leaves the eye | Rods and cones are present but inactive here |
| 4. | Eustachian tube |
Anterior part of internal ear | Equalizes air pressure on either sides of tympanic membrane |
Which one of the following statements is correct?
| 1. | Neurons regulate endocrine activity, but not vice versa |
| 2. | Endocrine glands regulate neural activity and the nervous system regulates endocrine glands |
| 3. | Neither hormones control neural activity nor the neurons control endocrine activity |
| 4. | Endocrine glands regulate neural activity, but not vice versa |
Which one of the following pairs of structures distinguishes a nerve cell from other types of cells?
1. Perikaryon and dendrites
2. Vacuoles and fibres
3. Flagellum and medullary sheath
4. Nucleus and mitochondria
During the transmission of nerve impulses through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?
| 1. | First negative, then positive, and again back to negative |
| 2. | First positive, then negative, and continue to be negative |
| 3. | First negative, then positive, and then continues to be positive |
| 4. | First positive, then negative, and again back to positive |
1. K+ ions from extracellular fluid to intracellular fluid
2. Na+ ions from intracellular fluid to extracellular fluid
3. K+ ions from intracellular fluid to extracellular fluid
4. Na+ ions from extracellular fluid to intracellular fluid
Alzheimer disease in humans is associated with the deficiency of:
1. dopamine
2. glutamic acid
3. acetylcholine
4. Gamma Amino Butyric Acid (GABA)
Which part of the human brain is concerned with the regulation of body temperature?
1. Medulla oblongata
2. Cerebellum
3. Cerebrum
4. Hypothalamus
The nerve centres which control the body temperature and the urge for eating are contained in:
1. hypothalamus
2. pons
3. cerebellum
4. thalamus
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