Types of Synapse

Q.

Which of the following statements about the mechanism of muscle contraction are correct?

A. Acetylcholine is released when the neural signal reaches the motor end plate.

B. Muscle contraction is initiated by a signal sent by CNS via a sensory neuron.

C. During muscle contraction, the isotropic band gets elongated.

D. Repeated activation of the muscle can lead to accumulation of lactic acid.

1. A and D are correct.

2. B and C are correct.

3. A and C are correct.

4. A, Band C are correct.

Q. Choose the correct synapse label for the explanation given in the column:

1. $\mathrm{Chemical}$
2. $\mathrm{Electrical}$
3. $\mathrm{Myelin}\mathrm{Neuron}$
4. $\mathrm{Non}\mathrm{myelin}\mathrm{neuron}$

Q.

Dendrites are:

1. long unbranched processes

2. long branched processes

3. short branched processes

4. short unbranched processes