lymphatic system

Question 1

what is a lymph nodes

Answer 1

a bean shaped structure that filters out infection and contains lymphocytes

Question 2

what are lymphatic ducts

Answer 2

each person has 2 ducts. they empty lymph fluid into the venous system

Question 3

what are lymphatic vessles

Answer 3

thin tubes that collect lymph from tissues and return it to the bloodstream

Question 4

what is a gland

Answer 4

an organ that makes 1 or more substances

Question 5

what are t lymphocytes

Answer 5

a type of white blood cells that protect againt infection and can fight cancer

Question 6

what are b lymphocytes

Answer 6

a type of wbc that makes antibodies

Question 7

what is lymph

Answer 7

a fluid that flows through the lymphatic system, it collects fluid from tissues and returns it to the blood. lymph carries nutrients and proteins to cells and tissues then collects any harmful substances from the cells + tissues.

Question 8

what is the spleen

Answer 8

an organ that is part of the lymphatic and blood systems. it filters blood to help destroy microorganisms and remove old / damaged rbc’s. the spleen also makes lymphocytes and stores rbc’s.

Question 9

what are lymph hearts

Answer 9

small contractile organs that help pump lymph back into the circulatory system. these are present in very few mammals, one of which is frogs.

Question 10

what does the lymphatic system do

Answer 10

• filters pathogens
• facilitates the transport of wbc’s
• collects excess fluid from tissues and returns it to the circulatory system.
• absorbs fats and fat soluble nutrients through lymphatic vessels in the digestive systems.
• lowers blood pressure - blood enters the system at high blood pressure and leaves with low.