During the process of impulse conduction, the depolarisation of axon takes place because
1. Voltage gated channels open
2. Equal amounts of and are pumped out
3. Voltage gated channels open
4. Equal amounts of and K are pumped in
Highly vascular and closely investing protective coat around the brain is known as
1. Arachnoid
2. Pia mater
3. Dura mater
4. Sub-arachnoid space
The limbic system is formed by
1. The hypothalamus, epithalamus, amygdala and hippocampus
2. Hypothalamus, amygdala and hippocampus
3. Corpora quadrigemina and hippocampus
4. Midbrain an hindbrain
Hypothalamus does not contain centre for controlling
1. Body temperature
2. Hunger
3. Respiration
4. Osmoregulation
Read the following statements
(A) | Depolarization of an axonal membrane is caused due to rise in stimulus-induced permeability to Na+ and its rapid influx into axoplasm. |
(B) | Diffusion of K+ outside the axonal membrane restores the resting potential of the membrane. |
(C) | Sodium potassium pump maintains active transport of 2Na+ outwards for 3K+ into axoplasm across resting membrane |
Choose the option that represent correct statements only
1. A only
2. A and B
3. B and C
4. A and C
_________integrates information received from semicircular canals of ear and _______ regulates emotional reactions with limbic system.
1. Cerebral cortex, Midbrain
2. Cerebellum, Midbrain
3. Cerebral cortex, Hypothalamus
4. Cerebellum, Hypothalamus
The neural system provides an organized network of ___A___ connections for a ___B___ coordination. Choose the correct option for A, B to complete the given statement.
1. A – point to point, B – slow
2. A – chemical, B – fast
3. A – point to point, B – fast
4. A – Chemical, B – slow
Which of the following neural system relays the impulse from CNS to skeletal muscles?
1. Somatic neural system
2. Sympathetic neural system
3. Parasympathetic neural system
4. Autonomic neural system
The somatic neural system of the peripheral nervous system
1. Relays impulses from CNS to smooth muscles of body
2. Relays impulses from organs to the CNS
3. Regulates the movement of substances in hollow visceral organs of body
4. Relays impulses from CNS to skeletal muscles
Limbic system is concerned with
1. Components of cerebrum and diencephalon
2. Regulation of sexual behaviour
3. Emotional behaviour
4. All of these