What would be true regarding the structure shown in the given figure?
1. | It is a chemical synapse and there is unidirectional transmission of impulse across it. |
2. | It is a chemical synapse and a chemical neurotransmitter is involved in the transmission of impulse across it. |
3. | It is an electrical synapse and it is relatively slower than the chemical synapse. |
4. | It is an electrical synapse, and although faster than the chemical synapse, is rare in human body. |
1. | Diencepahlon and is the location of the third ventricle. |
2. | Corpora quadrigemina and the cerebral aqueduct passes through it. |
3. | Limbic system and regulates the behaviour in humans. |
4. | Reticular formation and is the gate keeper to consciousness. |
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A | B | C | |
1. | Corpus callosum | Cerebellum | Pons |
2. | Cerebellar peduncle | Cerebrum | Medulla |
3. | Corpus callosum | Cerebrum | Pons |
4. | Corpus luteum | Cerebellum | Medulla |
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A | B | C | D | |
1. | Tympanic membrane | Semicircular canal | Cochlea | Lacrimal duct |
2. | Ear ossicles | Semicircular canal | Cochlea | Eustachian tube |
3. | Ear ossicles | Cochlea | Semicircular canal | Eustachian tube |
4. | Middle ear | Cochlea | Vestibule | Canal of Schlemm |
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A: | Frontal lobe | Planning, reasoning and problem solving |
B: | Parietal lobe | Integrating sensory information, including touch, temperature, pressure and pain |
C: | Occipital lobe | Location of the primary visual cortex which receives visual information from the eyes |
D: | Temporal lobe | Contains the primary auditory cortex, which receives auditory information from the ears |
1. | Only A and B | 2. | Only A, B and C |
3. | Only B, C and D | 4. | A, B, C and D |
I: | The action potential, generated due to the depolarization of the axonal membrane, arrives at the axon terminal. |
II: | Potassium ions enter the synaptic knob. |
III: | Synaptic vesicles are activated and release neurotransmitter in the synaptic cleft. |
IV: | Neurotransmitter binds to the receptor on the post-synaptic membrane. |
A | B | C | D | |
1. | I | II | III | IV |
2. | II | V | I | III |
3. | I | III | II | IV |
4. | III | IV | II | I |
Identify the correct statements regarding the events A and B in the given diagram:
I: | A is depolarization and is caused by the influx of sodium ions. |
II: | B is repolarization and is caused by the efflux of potassium ions. |
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