CBSE Class 11 Biology – Body Fluids and Circulation

Previous Chapter Next Chapter

Study Materials

11th

11th - Biology

Body Fluids and Circulation

Chapter Overview

This chapter explains the composition and functions of body fluids such as blood and lymph, and details the human circulatory system. It covers topics like the structure of the heart, blood vessels, the cardiac cycle, blood pressure, and the regulation of the circulatory system. Disorders related to the circulatory system are also discussed.

Important Keywords

  • Blood: A fluid connective tissue that transports oxygen, nutrients, and waste.
  • Plasma: The liquid component of blood that carries cells and dissolved substances.
  • RBCs (Erythrocytes): Red blood cells responsible for oxygen transport.
  • WBCs (Leukocytes): White blood cells that provide immunity.
  • Platelets: Cells that help in blood clotting.
  • Lymph: A colorless fluid that drains tissue spaces and returns proteins to the blood.
  • Heart: Muscular organ that pumps blood through the body.
  • Cardiac Cycle: Sequence of events during one heartbeat.
  • Double Circulation: Circulation in which blood passes through the heart twice in one cycle – pulmonary and systemic circuits.

Detailed Notes

to view full chapter (Body Fluids and Circulation - Detailed Notes) resources.