English
Tamil Nadu Board of Secondary EducationHSC Science Class 11

At any given time there is more blood in the venous system than that of the arterial system. Which of the following features of the veins allows this?

Advertisements
Advertisements

Question

At any given time there is more blood in the venous system than that of the arterial system. Which of the following features of the veins allows this?

Options

  • relative lack of smooth muscles

  • presence of valves

  • proximity of the veins to lymphatic’s

  • hin endothelial lining

MCQ
Advertisements

Solution

relative lack of smooth muscles

shaalaa.com
  Is there an error in this question or solution?
Chapter 7: Body Fluids and Circulation - Evaluation [Page 132]

APPEARS IN

Samacheer Kalvi Zoology [English] Class 11 TN Board
Chapter 7 Body Fluids and Circulation
Evaluation | Q 14. | Page 132
Samacheer Kalvi Biology (Zoology) [English] Class 11 TN Board
Chapter 7 Body Fluids and Circulation
Evaluation | Q 15. | Page 128

RELATED QUESTIONS

Describe the evolutionary change in the pattern of heart among the vertebrates.


Sino-atrial node is called the pacemaker of our heart. Why?


What is the significance of atrio-ventricular node and atrio-ventricular bundle in the functioning of heart?


Conversion of ammonia into uric acid occurs through --------------


Distinguish between mitral valve and semi lunar valve.


Right ventricular wall is thinner than the left ventricular wall. Why?


What are the heart sounds? When and how are these sounds produced?


Which among the followings is correct during each cardiac cycle?


The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is ______.


Read the following statements and choose the correct option

Statement 1: Atria receive blood from all parts of the body which subsequently flows to ventricles.

Statement 2: Action potential generated at sino-atrial node passes from atria to ventricles.


The walls of ventricles are much thicker than atria. Explain.


Write the features that distinguish between the two.

Open and Closed circulatory system


Answer the following:

Which part of heart is responsible for initating and maintaining its rhythmic activity?


Answer the following:

What is specific in the heart of crocodiles among reptilians?


In the diagrammatic presentation of heart given below, mark and label, SAN, AVN, AV bundles, bundle of His and Purkinje fibres.


Cardiac activities of the heart are regulated by ______.

  1. Nodal tissue
  2. A special neural centre in the medulla oblongata
  3. Adrenal medullary hormones
  4. Adrenal cortical hormones

Choose the correct answer from the options given below:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×