Assertion (A): All involuntary actions like blood pressure, salivation and vomiting are controlled by the medulla in the hindbrain.
Reason (R): A brain is divided into two parts: Forebrain and hindbrain

A is false but R is true.

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Both A and R are true and R is the correct explanation of A.

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Both A and R are true but R is not the correct explanation of A.

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A is true but R is false.

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Solution

The correct option is D A is true but R is false.
A human brain is divided into three parts: forebrain, midbrain and hindbrain. Medulla oblongata of the hindbrain controlls involuntary actions like heartbeat, breathing, blood pressure, digestion, etc.

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Similar questions

Q. Which of the following statements are true about the brain?
(i) The main thinking part of brain is hindbrain.
(ii) Centres of hearing, smell, memory, sight etc. are located in the forebrain.
(iii) Involuntary actions like salivation, vomiting, blood pressure are controlled by the medulla in the hindbrain.
(iv) Cerebellum does not control posture and balance of the body.

Q. The involuntary actions in the body are controlled by :
(a) medulla in forebrain
(b)medulla in hindbrain
(c) medulla in spinal cord
(d) medulla in midbrain

Q. The blood pressure, Salivation, pupil movement, etc. are all the involuntary movements. Which part of the brain is responsible for controlling these actions?

Match the following:

$\begin{matrix} 1. T h i s p a r t o f t h e b r a i n t e l l s u s & (i) C e r e b e l l u m w h e t h e r w e a r e h u n g r y o r f u l l 2. T h i s p a r t o f t h e b r a i n i s r e s p o n s i b l e & (i i) M e d u l l a f o r p r e c i s i o n o f v o l u n t a r y a c t i o n s 3. I n v o l u n t a r y a c t i o n s l i k e v o m i t i n g a n d s a l i v a t i o n & (i i i) F o r e - b r a i n a r e c o n t r o l l e d b y t h i s p a r t o f t h e b r a i n \end{matrix}$

Name three involuntary actions controlled by the medulla in the hindbrain.

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Assertion (A): All involuntary actions like blood pressure, salivation and vomiting are controlled by the medulla in the hindbrain. Reason (R): A brain is divided into two parts: Forebrain and hindbrain

The correct option is D A is true but R is false.A human brain is divided into three parts: forebrain, midbrain and hindbrain. Medulla oblongata of the hindbrain controlls involuntary actions like heartbeat, breathing, blood pressure, digestion, etc.

Assertion (A): All involuntary actions like blood pressure, salivation and vomiting are controlled by the medulla in the hindbrain.
Reason (R): A brain is divided into two parts: Forebrain and hindbrain

The correct option is D A is true but R is false.
A human brain is divided into three parts: forebrain, midbrain and hindbrain. Medulla oblongata of the hindbrain controlls involuntary actions like heartbeat, breathing, blood pressure, digestion, etc.