UNIT 3: The Human Lymphatic System

Question 1

lymph

Answer 1

clear liquid that is collected from around cells and is transported by the lymphatic system back to the blood stream.

Question 2

lymph vessel

Answer 2

narrow, dead-ending tubes that transport lymph and are present in every tissue and organ throughout the body.

Question 3

lymphnodes

Answer 3

small, spherical-shaped organs of the lymphatic system that contain many white blood cells.

Question 4

spleen

Answer 4

organ located just to the left of the stomach producing lymphocytes and filtering out bacteria, viruses and abnormal cells

Question 5

thymus

Answer 5

specialised lymphatic organ located just infront of the heart and underneath the sternum.
it functions in the maturation of lymphocytes.

Question 6

adenoids and tonsils

Answer 6

the adenoids are located at the back of the nasal cavity while the tonsils are located at the back of the mouth on either side. they function in producing lymphocytes during an infection.

Question 7

functions of the lymphatic system

Answer 7

• collects extracellular fluid and returns it to the blood stream at the subclavian veins.
• the lymph nodes filter lymph removing bacteria, viruses, abnormal cells and cell debris.
• absorbs fat from the small intestine.
• maturation of lymphocytes