Structures of the Lymphatic and Immune Systems

Question 1

Define

Lymph

Answer 1

clear, watery fluid that originates in the tissue space around cells, contains white blood cells that help the body fight disease

Question 2

Define

Lymphatic Vessels

Answer 2

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

Question 3

Define

Lymphatic Ducts

Answer 3

great lymphatic vessel that empties lymph into one of the subclavian veins

Question 4

Which lymphatic duct empties into which subclavian vein?

Answer 4

right lymphatic duct to right subclavian vein, thoracic duct into the left subclavian vein

Question 5

Define

Lymphocytes

Answer 5

white blood cells that are made in bone marrow and defend the body against foreign substances

Question 6

Define

Macrophages

Answer 6

type of white blood cell that surrounds and kills unwanted microscopic particles

Question 7

Define

Lymph Nodes

Answer 7

small, bean-shaped organs that filter lymph fluid and trap foreign substances

Question 8

Where are lymph nodes?

Answer 8

they cluster in areas where lymphatic vessels branch off such as the groin, armpit, and neck

Question 9

Define

Tonsils

Answer 9

located in the throat and palate, are a key defense against pathogens that are inhaled or ingested and also produce white blood cells

Question 10

Define

Spleen

Answer 10

organ that filters the blood to help destroy microorganisms and get rid of old or damaged red blood cells, also makes lymphocytes and stores blood cells

Question 11

Define

Thymus Gland

Answer 11

develops T cells that enter the blood stream after maturing and help defend deadly pathogens