Circulatory System Flashcards
(32 cards)
Circulatory System
Carries oxygen and nutrients to all the cells of the body. Collects waste for removal
Blood vessels
Tubes that carry blood around the body
Arteries
Tubes that carry blood pumped from the heart to other body parts
Veins job and structure
Thinner walls than the artery and valves; Carry Blood to the right atrium of the heart (oxygen depleted)
Capillaries
Carry materials (e.g oxygen and nutrients) to the cells and remove wastes by diffusing through the walls of the capillary.
Plasma
Mostly water with substances carried in the blood (e.g waste products (some), glucose and CO2) are dissolved in blood cells. About 55% of blood
Haemoglobin
Red pigment in red blood cells that carries OXYGEN (Chemical)
Red Blood Cells Job
Carry oxygen and CO2 around the body. Bright red blood = Oxygen rich
Platelets Job
Aids in clotting of blood; Responsible for healing by clumping together around a wound so the germs cannot get in
White Blood Cells Job
Defense against diseases. Some engulf them while others produce antibodies which are chemicals that attack germs
Fibrinogen Job
Clotting of blood
Oxhaemoglobin
Haemoglobin with oxygen attached and is formed when oxygen reacts with the haemoglobin in red blood cells
Red Blood Cells form from and can carry lots of oxygen because
Cells in bone marrow and lack a nucleus. They also have a large surface area that allows them to carry lots of oxygen
White Blood Cells job and structure
Living Cells that fight bacteria and viruses. Part of the immune system. Larger than RBC and have a nucleus. Irregular Shape.
Platelets
Small cell fragments involved in blood clotting. less than 0.01% of blood
Plasma is made up of
Serum (Dissolved nutrients, waste minerals, gases, proteins, water and other substances) and fibernogen
Septum
Thick Wall of tissue that seperates the right and left side of your heart
Right Atrium
Heart receives oxygen depleted blood from the body (Veins)
Right Ventricle
Squeezes and forces blood into the lungs where it releases CO2 and picks up oxygen
Left Atrium
Oxygen rich blood comes back from lungs
Left Ventricle
Blood pumped out from here all around the body
Valves
Stop blood from flowing back where it came from
Check Canva for labeling heart and veins/arteries etc.
Cellular Respiration
The process used by all living cells to release energy