Blood and blood types

Plasma

• Fluid part of blood that carries carbon dioxide, hormones, and waste.

Erythrocytes

• Contain hemoglobin to carry oxygen.

• Produced in bone marrow; more red blood cells are generated with training.

Lymphocytes

• Key part of the immune system, producing antibodies and eliminating harmful microorganisms.

• Also made in bone marrow.

Thrombocytes

• Clump together to form clots, stopping bleeding and protecting the body.

Blood Types

• Made of the same basic elements, yet differ by antigens.

• There are 8 common blood types determined by antigen presence.

ABO Blood Types

• Group A: A antigens (B antibodies).

• Group B: B antigens (A antibodies).

• Group AB: Both A and B antigens (no antibodies).

• Group O: No A or B antigens (both antibodies).

Rh Factor

• A third antigen that can be present (+) or absent (–).

• Rh-negative blood is typically given to Rh-negative patients; Rh-positive or Rh-negative can be given to Rh-positive patients.

The Cardiac Cycle

• Represents events during one heartbeat; includes phases of systole (contraction) and diastole (relaxation).

Circulatory System

• Transports blood, nutrients, oxygen, and waste through the body via heart, blood vessels, and blood.

• Regulates body temperature, pH, and facilitates immune response.