Blood
Name the 3 types of blood cells
Red blood cells, White blood cells, Platelets
What direction do arteries pump around the body?
Away from the heart
What structure separates the left and right side of the heart?
Septum
Which side of the heart pumps deoxygenated blood?
Right side
Where is the AV node located?
Septum
What is the function of platelets?
Clot the blood
Veins have a narrow lumen. True/False?
False. Wide Lumen
Name the three types of valves found in the heart
Bicuspid, Tricuspid, Semilunar
Name the two pathways of blood circulation in the two-circuit circulatory system
Pulmonary & Systemic Circuit
What type of muscle is the heart made of and why is it important?
Cardiac muscle, it never tires
Name the liquid part of the blood
Plasma
What are valves and where are they located?
Flaps of tissue which prevent the backflow of blood in veins
Why is the left ventricle thicker than the right?
The blood has further to travel, it is being pumped around the whole body.
Name the only blood vessel that does not pump blood directly to the heart.
Hepatic portal vein
What is the function of the pacemaker?
To send electrical impulses which cause the atria to contract
Give 3 ways RBCs are different to other blood cells
Colour, No mitochondria, No nucleus, Biconcave Shape
Name the small blood vessel that connects veins to capillaries.
Venule
Name the only artery that does not carry oxygenated blood
Pulmonary artery
What blood vessel carries deoxygented blood into the heart?
Vena Cava
Name 3 body systems that the circulatory system interacts with
Breathing, Endocrine, Musculoskeletal, Nervous, Digestive, Urinary
Where are blood cells produced?
Bone Marrow
Why is blood pumped under low pressure in veins?
Wide lumen, thin elastic muscle walls
Name the blood vessel that supplies the heart muscle with blood
Coronary artery
Explain how oxygenated blood is pumped through the heart
Blood is pumped to the heart through the pulmonary vein, through the left atrium and bicuspid valves, into the left ventricle and through the aorta through the semilunar valves
Why is it important to know about blood groups?
Blood transfusions, organ transplants, pregnancy