List - I | List – II | ||
A. | Schwann cells | i. | Neurotransmitter |
B. | Synaptic knob | ii. | Cerebral cortex |
C. | Bipolar neurons | iii. | Myelin sheath |
D. | Multipolar neurons | iv. | Retina |
The correct matches are:
• Schwann cells form the myelin sheath around axons. (A-III)
• The synaptic knob contains neurotransmitters. (B-I)
• Bipolar neurons are found in the retina. (C-IV)
• Multipolar neurons are found in the cerebral cortex. (D-II)
Therefore, the correct option is (1): A-III, B-I, C-IV, D-II.
Which part of the human brain is responsible for:
(a) thinking
(b) picking up a pencil
(c) controlling blood pressure
(d) controlling hunger
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :