Circulation Flashcards
Blood-
Watery plasma, red blood cells, white blood cells, platelets
Circulation system-
blood, arteries, veins, capillaries, heart
Red blood cells-
Contain hemoglobin to carry oxygen
White blood cells-
Protect the body, make antibodies
Platelets-
Clot blood
Functions of blood-
Transport (RBC carry oxygen) and protection (WBC)
Arteries-
thick walls, narrow lumen
Veins-
Thin wall, wide lumen, valves, carry blood to the heart
Capillaries-
Link arteries and veins. Walls are one cell thick, which allows for passage of materials
Cardiac muscle-
Muscle in the heart, it never tires
Four chambers of the heart-
Right and left atria, right and left ventricles
Left ventricle-
Thick wall because it pumps blood all around the body
Normal body temperature-
37 degrees Celsius
Average resting heart rate-
70 bpm
Heart disease prevention by-
Having a good diet, don’t smoke, regular exercise and avoiding stress