Biology 12Mrs. Knowles

Cardiovascular system

The heartbeat

Cardiac cycle

Intrinsic control

Biology 12Mrs. Knowles

Extrinsic control

ECG

Biology 12Mrs. Knowles

Circuits of the cardiovascular system:

Pulmonary circuit

Systemic circuit

Biology 12Mrs. Knowles

Biology 12Mrs. Knowles

Blood flow

Blood pressure

Blood flow in arteries

Blood flow in capillaries

Blood flow in veins

Biology 12Mrs. Knowles

Blood

Functions:

What’s in our blood?

Components

Plasma Formed Elements

Water

Plasma proteins

Salts

Gases

Nutrients

Wastes

Hormones

Red blood cell

Platelets

White blood cell

Biology 12Mrs. Knowles

RED VS. WHITE

Blood clotting

Biology 12Mrs. Knowles

Bone marrow stem cell:

Capillary exchange:

Biology 12Mrs. Knowles

Cardiovascular disorders & treatments

Atherosclerosis

Stroke

Heart Attack

Aneurysm

Hypertension

Biology 12Mrs. Knowles

Bypass operations

Cleraing clogged arteries

Dissolving blood clots

Heart transplants and artificial hearts

Biology 12Mrs. Knowles

Fetal Circulation

Role of the placenta