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Blood cell consist of ( all 4 components)
red blood cell, white blood cell, platelets and plasma
Name the two types of white blood cell
Phagocytes and Lymphocytes
State two functions of lymphocytes
Produce antibodies to destroy pathogenic cells and antitoxins to neutralise toxins released by pathogens
State a function of phagocytes
Carry out phagocytosis by engulfing and digesting pathogens
Name two substances that leak out of the capillaries?
dissolved solutes(nutrients), dissolved gases , minerals
The lymphatic system is formed from a series of tubes which flow from tissues back to the heart. True or false?
True
It connects with the blood system near to the heart, where lymph fluid is returned to the blood plasma. True or false
True
Lymph nodes are small clusters of lymphatic tissue found throughout the lymphatic system. Name two body parts where lymph nodes can be found.
Neck and Armpit
Arteries carry blood ____ the heart.
Away
As arteries branch out they become increasingly smaller. The smaller portion of an artery is referred to as a (an)...
Arteriole
Veins and arteries are connected by
Capillaries
This vessel is tiny and so narrow that blood cells can only go through in single-file.
Capillary
.How thick are capillaries?
One cell thick
A pulse can be felt in the
arteries
Veins contain _________________ to prevent the backflow of blood.
valves
This redirection of blood flow is caused by the use of a vascular __________________
shunt vessel
