Flashcards
blood vessels
Flashcards do conjunto (41)
- 1Name 3 blood vesselsArtery
Vein
Capillary - 2Arteryblood vessels that carry blood away from the heart
- 3Veinblood vessels that carry blood towards the heart
- 4Capillaryblood vessels that connect artery and vein
- 5What is the name of the artery carries blood to the heart muscle?coronary artery
- 6Artery structureThicker wall
smaller lumen - 7Pulse If you lightly touch the inside of your wrist, what can you feel?I can feel the artery in your wrist rise and fall repeatedly
- 8The pulse is caused by ...by the alternating expansion and relaxation of artery wall
- 9What is the function of the layer of muscle in an artery?acts as a control gate, adjusting the amount of blood sent to different organs.
- 10After you eat, your stomach and intestines need a smaller or greater blood supply?Greater blood supply
- 11In capillaries, materials are exchanged between the blood and the body's cells. Give 2 examplesGlucose DIFFUSES from the blood into body cells
Waste products travel in opposite direction - 12How do capillary walls like?It is one-cell thick
- 13What does blood move through before entering larger blood vessels called Veinscapillaries
- 14How do the walls of veins like?The wall of veins are generally much thinner than those of arteries. They have larger lumen.
- 15Where do the veins locate? What do the contraction of muscle help?Veins locates near muscle. The contraction of muscle helps push the blood along.
- 16What is the force exerted by blood against the walls of blood vessels called?Blood pressure
- 17What cause blood pressure?Blood pressure is caused by the force with which the ventricles contract
- 18Blood pressure in arteris farther from the heart is much higher or lower?Lower
- 19Blood is made up of which four components?plasma
red blood cell
white blood cell
blood platelets
(around 45% of blood is cells) - 20What is plasma?Plasma is the liquid part of the blood
Water makes up 90% of plasma
The other 10% is dissolved materails
- Nutrients .. e.g. glucose, fats, vitamines and minerals
Wastes
Hormones - 21What does red blood cell caries?Red blood cell carries oxygen from the lungs to body cells in the body.
- 22Where is red blood cell produced?Red blood cell is produced in bone marrow
- 23What is the shape of red blood cell?Red blood cells are oval and biconcave discs
- 24What do mature red blood cell miss? How long will they live?Mature red blood cells have no nuclei.
They can live 120 days. - 25What is red blood cell made?Red blood cell is made mostly of haemoglobin, which is iron-containing
- 26Haemoglobin combines with ____ in lung and becomes _____.Haemoglobin combines with oxygen in lung and becomes bright red.
- 27Without oxygen, the cells are _____.Without oxygen, the cells are purplish red.
- 28Why white blood cells are the body's disease fighters?They recognize and destroy disease-causing organisms - bacteria.
- 29Do white blood cells contain nuclei? How long can they live?White blood cells contain nuclei.
They can live for months or even years. - 30What are platelets?Platelets are cell fragments that play an important part in forming blood clots.
- 31what will happens when a blood vessel is cut?Platelets collect and stick to vessel at the site of the wound.
- 32As more and more ______ and _____ become trapped at the wound, a blood clot form.As more and more platelets and red blood cells become trapped at the wound, a blood clot form.
- 33If a person loses a lot of blood, he/she may be given a blood ________ (transfer of blood)If a person loses a lot of blood, he/she may be given a blood transfusion (transfer of blood)
- 34Name 2 diseases of cardiovascular system.Atherosclerosis
Hypertension - 35Atherosclerosis A condition in which an artery wall thickens as a result of buildup of ______. One of these fatty materials is ________.A condition in which an artery wall thickens as a result of buildup of fatty materials. One of these fatty materials is cholesterol.
- 36What will happen when blood flow to part of the heart muscle is blocked?When blood flow to part of the heart muscle is blocked, this may lead to heart attack.
- 37What is hypertension?Hypertension is a disease in which a person's blood pressure is consistently higher than normal.
- 38What does treatment for mild atherosclerosis usually include?Treatment for mild atherosclerosis usually includes a low-fat diet and moderate exercise program.
- 39What does treatment for hypertension include?Treatment for hypertension includes regular exercise and a low-salt diet.
- 40Which organ is responsible for synthesizing cholesterol?Liver
- 41State one importance of cholesterol in human body.Cholesterol maintains the stability of cell membranes.
Cholesterol is necessary for producing sex hormone.
Informações
- Descrição
- Biology (Transport System in Organisms) FlashCards sobre blood vessels, criado por DanielTimmyChow em 04-04-2015.
- Criado por
- DanielTimmyChow · abr 2015
- Atualizado
- 19 fev 2016
- Visualizações
- 33
- Avaliação