Biology · Class 11 · Chapter 15
Body Fluids and Circulation
12 lessons105 min7 simulations10 practice questions
This chapter follows the fluids that carry supplies to every cell and wastes away from them. It covers blood (plasma, formed elements, blood groups and clotting), lymph, the patterns of circulation across animals, the structure and rhythm of the human heart, the cardiac cycle and ECG, double circulation, how the heart is regulated, and common circulatory disorders.
Also called: human circulatory system · heart · blood · cardiac cycle
Lessons
12 lessons · 105 min
01Blood and plasmaNCERT §15 (opening text) and §15.1–§15.1.16 min02Formed elements: RBCs, WBCs and plateletsNCERT §15.1.26 min03Blood groupsNCERT §15.1.313 min2 sims04Coagulation of bloodNCERT §15.1.49 min1 sim05Lymph (tissue fluid)NCERT §15.29 min1 sim06Circulatory pathways in animalsNCERT §15.36 min07The human heartNCERT §15.3.110 min1 sim08The cardiac cycleNCERT §15.3.214 min2 sims09Electrocardiogram (ECG)NCERT §15.3.36 min10Double circulationNCERT §15.47 min11Regulation of cardiac activity and disordersNCERT §15.5–§15.67 min12Chapter reviewMust-know facts, traps and formulas12 min
Simulations
7 in this chapter
Matching blood for a transfusionIn: Blood groupsRh incompatibility in pregnancyIn: Blood groupsThe clotting cascadeIn: Coagulation of bloodTissue fluid and lymphIn: Lymph (tissue fluid)The heart's own pacemakerIn: The human heartOne turn of the cardiac cycleIn: The cardiac cycleHow much blood the heart pumpsIn: The cardiac cycle