Home
Class 12
BIOLOGY
Assertion Arteries possess smooth muslce...

Assertion Arteries possess smooth muslces on their walls.
Reason These smooth muscles help in regulating blood volume flowing through a tissue of organ.

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

B

Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion

C

Assertion is true, but Reason is false

D

Assertion is false, but Reason in true.

Text Solution

Verified by Experts

The correct Answer is:
A
Arteries receive blood which directly comes from heart. Larger arteries are branched into smaller arteries, which are again branched into small vessels called arterioles, these further divide into thin-walled capillaries. Arteries have smooth muscles on their, wall Which can regulate the diameter of arterioles according to the need of (and flow of blood) tissue.
Promotional Banner

Topper's Solved these Questions

  • BODY FLUID AND CIRCULATION

    ARIHANT NEET|Exercise MEDICAL ENTRANCES GALLERY COLLECTION OF QUESTIONS ASKED IN NEET AND VARIOUS MEDICAL ENTRANCE EXAMS|72 Videos

  • BODY FLUID AND CIRCULATION

    ARIHANT NEET|Exercise MATCH THE COLUMNS|1 Videos

  • BIOTECHNOLOGY AND ITS APPLICATIONS

    ARIHANT NEET|Exercise CHAPTER EXERCISES ((C ) MEDICAL ENTRANCES GALLERY )|46 Videos

  • BREATHING AND EXCHANGE OF GASES

    ARIHANT NEET|Exercise Chapter exercise C (Medical entrances gallery )|54 Videos

Similar Questions

Explore conceptually related problems

Assertion (A): Muscles of stomach wall possess thick layers of muscle fibers. Reason (R): These muscles help in mixing the food with the enzymes present in the alimentary canal.

Read the assertion and reason carefully to mark the correct option out of the option given below: Assertion: Thick layers of muscles are present in the wall of alimentary canal. Reason: These muscles help in the mixing of food materials with the enzymes coming from different glands in the alimentary canal.

Given below are assertion and reason. Point out if both are correct with reason being correct explanation (A), both true but reason is not correct explanation (B), assertion true but reason is wrong (C), both are wrong (D). Assertion. Thick layers of muscles are present in the wall of alimentary canal. Reason. These muscles help in mixing of food materials with enzymes coming from glands of alimentary canal.Â

Assertion : Smooth muscles are known as involuntary muscles Reason : Smooth muscles are controlled by autonomic nervous system.

Assertion: Visceral muecles are called smooth muscles of non-stmted musclee. Reason: The Visceral muscles do not exhibit my striatoins.

Assertion Arteries pump blood away from the heart at very low pressure. Reason Arteries have thin wall with large lumen.

Assertion: Visceral muscles are known as smooth muscles Reason: Visceral muscles do not exhibit uniform striations

Assertion: Smooth muscles are involuntary in nature. Reason: The functioning of smooth muscles cannot be directly controlled. A person will not be able to make it contract by merely thinking about it.