B8 - Blood And Blood Vessels Flashcards
What is the purpose of a red blood cell?
Transport oxygen
Platelets are involved in which process?
Blood clotting
What is the function of the plasma in blood?
- Transporting carbon dioxide
- Digested food molecules
- Urea
- Hormones
Which organelle is missing in a red blood cell?
Nucleus
What is the function of a white blood cell?
- Engulf pathogens
- Produce antibodies
Why do red blood cells have a biconcave shape?
Increases surface area for oxygen to attach
Which blood vessel is made of a layer of cells only one cell thick?
Capillary
Which blood vessels carry blood away from the heart?
Artery
Which blood vessel has valves?
Vein
Which blood vessel has a very thick layer of muscle and elastic tissue?
Artery
Which blood vessels bring blood in back toward the heart?
Vein
What do we call the liquid part of the blood?
Plasma
Which artery does NOT carry oxygenated blood?
Pulmonary artery
Which blood vessel has thin walls, a large opening and valves?
Vein
Which structure enables the artery to withstand the force of blood being pumped from the heart by stretching to take a larger volume of blood?
Elastic fibre
