Q. No.Injury localized to the hypothalamus would most likely disrupt:
1. short-term memory
2. co-ordination during locomotion
3. executive functions, such as decision making
4. regulation of body temperature
A diagram showing the axon terminal and synapse is given. Identify correctly at least two of A-D:
1. B- Synaptic connection; D- K+
2. A- Neurotransmitter; B- Synaptic cleft
3. C- Neurotransmitter; D- Ca++
4. A- Receptor; C- Synaptic vesicles
A canal called the cerebral aqueduct passes through the:
1. Diencephalon
2. Midbrain
3. III ventricle
4. IV ventricle
Which part of the brain is responsible for thermoregulation?
1. Medulla oblongata
2. Cerebrum
3. Hypothalamus
4. Corpus callosum
The "sodium-potassium pump" pumps ______.
1. sodium ions out and potassium ions in
2. sodium ions in and potassium ions out
3. sodium and potassium ions in
4. sodium and potassium ions out
Which of the following statements are true regarding
association areas of brain?
A. These are the largest areas of forebrain.
B. These are involved in the regulation of sexual
behaviour, expression of emotional reactions
and motivation.
C. These are responsible for complex functions like
intersensory association, memory and
communication.
D. It is a part of cerebral cortex.
1. A & B
2. A, B & C
3. A, C & D
4. A & C
Select the incorrect statement:
| 1. | Na+/K+ ATPase is an electrogenic pump that helps to maintain an electrochemical ionic gradient across axolemma. |
| 2. | At rest, axoplasm has lower ions concentration than ion concentration. |
| 3. | Brain stem comprises midbrain, pons, and medulla oblongata. |
| 4. | Thalamus part of the hindbrain is responsible for emotions like anger and rage. |
Consider the following statements.
(a) Occurs involuntarily and without conscious effort.
(b) At least no afferent and two efferent neuron required.
(c) Only motor neuron is involved in the action.
(d) Polysynaptic and conditional reflex.
(e) Regulated by the spinal cord.
Which of the above statements are correct for the reflex shown in the above figure?
1. a and e
2. b, c and d
3. a, b, d and e
4. a, b, c, d and e
Consider the characteristics of a certain part of the human brain:
I. It contains neurosecretory cells.
II. It is an important part of the limbic system.
III. It is a part of the diencephalons.
This part of the human brain is:
1. Hypothalamus
2. Medulla oblongata
3. Cerebellum
4. Amygdala
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