Question:

There is no mixing of oxygenated and deoxygenated blood in the human heart. Valves are present in the heart which allows the movement of blood in one direction only.

Updated On: Jul 6, 2022
  • If both assertion and reason are true and reason is the correct explanation of assertion
  • If both assertion and reason are true but reason is not the correct explanation of assertion
  • If assertion is true but reason is false
  • If both assertion and reason are false
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

There is no mixing of deoxygenated and oxygenated blood in human heart due to the presence of inter-atrial and inter-ventricular septum. These septa completely divide the atria and ventricles into right and left to avoid mixing of blood. The backflow of the blood is prevented by the presence of valves. The two atria are separated from the ventricles by membranous valves. They allow the flow of blood from atria to ventricles and not in the backward direction. At the base of the aorta and pulmonary artery, are present three membranous, pocket-shaped semilunar valves. These valves check the return of the blood to the ventricles.
Was this answer helpful?
0
0

Top Questions on body fluids and circulation

View More Questions

Notes on body fluids and circulation

Concepts Used:

Body Fluids and Circulation

Liquid substances in the animal or human body are known as body fluids. The human body consists of about 60-67% body fluids. The chief components of the human body fluids are blood and lymph. Blood comprises a matrix called plasma with blood corpuscles floating in it. The blood cells are white blood cells, red blood cells, and platelets. Lymph consists of lymph cells.

Read More: Body Fluids and Circulation

Types of Body Fluids:

The different types of body fluids:

Blood

The main components of blood involve;

  1. Plasma
  2. Red Blood Cells
  3. White Blood Cells
  4. Platelets

Lymph

A colorless fluid present in the interstitial tissues is lymph. It circulates all over the lymphatic system. It can be described as blood without the RBCs. The exchange of hormones, nutrients, and gases occurs via this fluid. It contains lymphocytes that play a major function in the immune responses of the body.

The movement of blood across the vessels of the body that carries nutrients and gases along with it and removes waste from the different parts of the body is circulation.

Types of Circulatory Systems:

There are two types of circulatory systems:

  • Open Circulatory system
  • Closed circulatory system