1. Name all the components of the lymphoid system. - Answers lymph, lymphatic vessels, and
lymphatic organs that contain lymphoid tissues.
2. Primary function of the lymphoid system. - Answers It is responsible for the removal of
interstitial fluid from tissues. It absorbs and transports fatty acids and fats as chyle from the
digestive system. It transports white blood cells to and from the lymph nodes into the bones.
3. Name the primary cells of the lymphoid system. - Answers The three major types of
lymphocyte are T cells, B cells, and natural killer cells.
4. The body's non-specific defenses - Answers anatomic barriers, inhibitors, phagocytosis, fever,
inflammation, and IFN.
5. Lymphocytes are said to provide specific defense known as ---------- response. - Answers
immune response
6. The ability to resist infection and diseases through the activation of specific defenses is
known as -------- - Answers Immunity
7. The smallest lymphatic vessels are known as -------------------- ------------------------ - Answers lymph
capillaries
8. Lymphatic capillaries in the small intestine are called --------------------- - Answers lacteal
9. Lacteals are important in the transport of ------------- absorbed by the digestive tract. - Answers
Lacteal is a lymphatic capillary that absorbs dietary fats in the villi of the small intestines. The
lacteals merge to form larger lymphatic vessels that transport chyle to the thoracic duct where
it is emptied into the blood stream at the subclavian vein.
10. What is the cysterna chyli? - Answers The cisterna chyli is a dilated lymphatic sac in the
retrocrural space.
11. The thoracic duct receives lymph from-------- - Answers The thoracic duct drains lymph from
the right and left descending thoracic lymph trunks, originating from the lower 6 intercostal
spaces (6 to 11). The duct also receives lymph from intercostal spaces 1 to 5 via the upper
intercostal lymph trunks.
12. The thoracic duct empties into the --------------------------------------------------------------------- - Answers
Left Subclavian Vein
13. The right lymphatic duct delivers lymph from the------------------------------------------------------ -
Answers The right lymphatic duct drains the right side of the thorax, right upper extremity, and
right side of the neck and head. It usually empties into the right subclavian vein, the internal
jugular vein, or the union of the two.