Lymphatic System

Question 1

functions

Answer 1

• storing fluid to increase/decrease BP
• transporting proteins/large particles
• carries fatty acids from intestines to thoracic duct, empty in veins

Question 2

lymph vessels

Answer 2

have one way valves to force fluid flow in one direction

Question 3

what helps lymph vessels propel fluid forward?

Answer 3

smooth muslces via peristalsis

Question 4

hydrostatic pressure

Answer 4

pushes fluid OUT at arterial end

Question 5

oncotic pressure

Answer 5

brings fluid IN at venule end
* type of osmotic pressure

Question 6

what happens to the fluid that is NOT absorbed?

Answer 6

enters lymphatic capillaries and becomes lymph
* IF
* bacteria
* fats
* proteins

Question 7

blood components

Answer 7

• plasma (water, proteins, nutrients)
• erythrocytes (RBC)
• leukocytes (WBC)
• platelets

Question 8

plasma proteins

blood component

Answer 8

• albumin: carry fatty acids/steroids
• immunoglobulins/antibodies: play role in immune system
• fibrinogen: clotting factor, zymogen activated by platelets to form fibrin

Question 9

erythrocytes

Answer 9

• produced in bone marrow from stem cells
• no organelles, no nucleus, just hemoglobin

Question 10

leukocytes

Answer 10

• produced in bone marrow from stem cells
• can be granula/agranular

Question 11

granular leukocytes

Answer 11

• first line of defense, target anything foreign and have short lifetime

Question 12

agranular

Answer 12

second line, target specific things and have long lifetime

Question 13

platelets

Answer 13

• not cells
• chopped up megakaryocytes in bone marrow
• no nucleus but have Golgi, mitochondria, ER, etc.