Parasympathetic Nervous System

Q. Which of the following action is not controlled by nervous system?

1. Blood supply towards the heart.
2. Closing of eyes due to a sudden flash of light.
3. Pulling back the hand after touching the hot plate.
4. Drinking water after eating the spicy food.

Q. Assertion [A]: Sympathetic and parasympathetic nervous systems are antagonistic to each other.

Reason [R]: The parasympathetic nervous system ‘prepares you’ for action, while the sympathetic system ‘calms you’ down after action.

1. Only A is correct.
2. Only R is correct.
3. Both A and R are correct and R is the correct explanation for A.
4. Both A and R are correct but R is not the correct explanation for A.

Q. Sort the following into the category 'Sympathetic system' and 'Parasympathetic system' accordingly.

1) Trachea dilates
2) Heart beat increases
3) Glucose is converted to glycogen
4) Production of hormones increases
5) The pupils constrict
6) Urinary bladder contracts

1. $\begin{array}{cc}\text{Sympathetic system}& \text{Parasympathetic system}\\ \text{1) Trachea dilates}& \text{3) Glucose is converted to glycogen}\\ \text{2) Heart beat increases}& \text{5) The pupils constrict}\\ \text{6) Urinary bladder contracts}& \text{4) Production of hormones increases}\end{array}$
2. $\begin{array}{cc}\text{Sympathetic system}& \text{Parasympathetic system}\\ \text{1) Trachea dilates}& \text{3) Glucose is converted to glycogen}\\ \text{5) The pupils constrict}& \text{2) Heart beat increases}\\ \text{6) Urinary bladder contracts}& \text{4) Production of hormones increases}\end{array}$
3. $\begin{array}{cc}\text{Sympathetic system}& \text{Parasympathetic system}\\ \text{3) Glucose is converted to glycogen}& \text{1) Trachea dilates}\\ \text{2) Heart beat increases}& \text{5) The pupils constrict}\\ \text{4) Production of hormones increases}& \text{6) Urinary bladder contracts}\end{array}$
4. $\begin{array}{cc}\text{Sympathetic system}& \text{Parasympathetic system}\\ \text{1) Trachea dilates}& \text{3) Glucose is converted to glycogen}\\ \text{2) Heart beat increases}& \text{5) The pupils constrict}\\ \text{4) Production of hormones increases}& \text{6) Urinary bladder contracts}\end{array}$

Q.

When a person faints which part of the brain is affected...?

Q.

What happens to our brain, heart etc when we are unconscious ?

Q.

When the parasympathetic nervous system is stimulated:

1. Heart beat stops

2. Heart beat decreases

3. Heart beat increases

4. Heart beat is not affected