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Assertion:Medulla contains centres which...

Assertion:Medulla contains centres which control respiration, cardiovascular reflexes and gastric secretions.
Reason:Medulla contains several neurosecretory cells which secrete hormones.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

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The correct Answer is:
C
The medulla contains centres which control respiration, cardiovascualar reflexes and gastric secretions. The hypthalamus is the basal is the part of diencephalon (forebrain) which contains several groups of neurousecretory cells called nuclei that prduce hormones.
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The medulla contains centre which control respiration , cardiovascular reflexes , and gastric secretions are related to

Read the following statements(A-D) 1. Hypothalamus controls body temperature,eating and drinking 2.The midbrain receives and integrates visual,tactile and auditory inputs 3.The medulla contains centres,which control respiration,cardiovascular reflexes and gastric secreations 4. The entire process of involuntary response to a peripherical nerve stimulation is called reflex action. How many of the above statements are true?

Hypothalamus contains several groups of neurosecretory cells which produce hormones, are called

Which of the following structure of the human brain contains neurosecretory cells to produce hormones ?

The human brain is divided into forebrain, midbrain and hindbrain. Select correct option which contains only correct option. i. The cerebral cortex contains motor areas, sensory areas and large association areas ii. Association areas are clearly sensory and motor in function and it related with complex functions like inter sensory association, memory and communication iii. Thalamus is a major coordinating centre for sensory and motor signalling iv. The hypothalamus contains a number of centres which control body temperature, urge for eating and drinking v. The inner parts of cerebral hemispheres, amygdale, hippocampus, etc., form a complex structure called the limbic lobe or limbic system vi. Along with the hypothalamus, limbic system is involved in the regulation of sexual behaviour, expression of emotional reactions and motivation vii. A canal called the cerebral aqueduct passes through the hindbrain viii. The medulla contains centres which control respiration, cardiovascular reflexes and gastric secretions

Assertion : The brain stem contains centres for controlling activities. Reason : Brain stem is very sensitive.

Which of the following structures contains groups of neurosecretory cells?

NCERT FINGERTIPS-NEURAL CONTROL AND COORDINATION-Neural Control And Coordination
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