Circulation
- Created by: dmistry02
- Created on: 14-06-14 16:56
View mindmap
- Circulation
- heart
- mainly made of muscle
- left ventrical has a thicker wall - blood pumped further
- cardiac cycle
- oxygenated
- Aorta - major artery
- pulmonary veins - from lung
- Left Atrium - top left of heart
- left ventrical - bottom left of heart.
- De-oxygenated
- Pulmonary Artery - blood to lung
- Vena-Cava - blood from body
- Right Atrium
- Right Ventrical
- oxygenated
- coronary artery
- supplies blood (oxygen and glucose) to the heart muscle
- A branch of the aorta
- a block can cause heartattack
- The circulatory system
- humans have a double circulatory system (8)
- Blood though the heart twice in one cycle
- Blood in each circuit is kept separate
- delivers oxygen and glucose to cellls
- Arteries - blood vessels that carry blood away from the heart
- Veins - carry blood towards the heart
- capillaries - very thin blood vessels which have walls that are only a cell thick
- How does the circulatory system work.
- 1. The left side of the heart pumps oxygenated blood to the body, via the aorta
- 2. De-oxygenated blood returns to the heart via the Vena Cava (right)
- 3. The Pulmonary vein pumps blood to the lungs
- Oxygenated blood returns to the heart through the pulmonary vein
- 1. The left side of the heart pumps oxygenated blood to the body, via the aorta
- 2. De-oxygenated blood returns to the heart via the Vena Cava (right)
- 3. The Pulmonary vein pumps blood to the lungs
- Oxygenated blood returns to the heart through the pulmonary vein
- Oxygenated blood returns to the heart through the pulmonary vein
- 3. The Pulmonary vein pumps blood to the lungs
- 2. De-oxygenated blood returns to the heart via the Vena Cava (right)
- 1. The left side of the heart pumps oxygenated blood to the body, via the aorta
- Oxygenated blood returns to the heart through the pulmonary vein
- 3. The Pulmonary vein pumps blood to the lungs
- 2. De-oxygenated blood returns to the heart via the Vena Cava (right)
- 1. The left side of the heart pumps oxygenated blood to the body, via the aorta
- Blood
- transports useful chemicals around the body
- oxygen and glucose needed for cells aerobic respiration
- Carbon dioxide is waste
- Plasma
- liquid part of blood
- transports nutrients, amino acids, anti-bodies and hormones to tissues
- Red blood cells
- Transports O2
- bound to heamoaglobin
- no nucleas
- oxygen binds with heamoglobin
- oxy-haemaglobin.
- White blood cells
- bodies imune system
- fights infections
- platelets
- sticks together when blood cells are damaged
- help form a clot
- transports useful chemicals around the body
- Diffusion in the circulatory system
- Red blood cells
- bio concave - larger surface area for oxygen exchange
- process
- 1. high pressure forces plasma through capillary wall - becomes tissue fluid
- 2. high pressure forces oxygen from blood cells into the tissue fluid
- 3. Low blood pressure at the end of cappillary allows waste products (CO2 and urea) into blood stream
- Red blood cells
- heart
- process
- 1. high pressure forces plasma through capillary wall - becomes tissue fluid
- 2. high pressure forces oxygen from blood cells into the tissue fluid
- 3. Low blood pressure at the end of cappillary allows waste products (CO2 and urea) into blood stream
Comments
No comments have yet been made