I: | neurotransmitters are involved in the transmission of impulses. |
II: | the axon terminals contain vesicles filled with the neurotransmitters. |
III: | the released neurotransmitters bind to their specific receptors, present on the post-synaptic membrane. |
1. | cerebrum | 2. | thalamus |
3. | hypothalamus | 4. | cerebellum |
Assertion (A): | The cerebral cortex is referred to as the grey matter. |
Reason (R): | Myelin sheaths around the axons give the cerebral cortex a grey appearance. |
1. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
1. | the highest set of regulation of the functions in human body. |
2. | a major coordinating centre for sensory and motor signaling. |
3. | involved in decoding the sense of olfaction. |
4. | vestigial in human beings. |
I: | is a part of the rhombencephalon. |
II: | contains a number of centres which control body temperature, urge for eating and drinking. |
III: | contains several groups of neurosecretory cells, which secrete hormones called hypothalamic hormones. |
I: | is located between the thalamus/hypothalamus of the forebrain and pons of the hindbrain. |
II: | is the part of the brain traversed by the cerebral aqueduct. |
III: | consists mainly of four round swellings (lobes) called corpora cavernosa. |