Lymphatic System Flashcards
1
Q
functions
A
- storing fluid to increase/decrease BP
- transporting proteins/large particles
- carries fatty acids from intestines to thoracic duct, empty in veins
2
Q
lymph vessels
A
have one way valves to force fluid flow in one direction
3
Q
what helps lymph vessels propel fluid forward?
A
smooth muslces via peristalsis
4
Q
hydrostatic pressure
A
pushes fluid OUT at arterial end
5
Q
oncotic pressure
A
brings fluid IN at venule end
* type of osmotic pressure
6
Q
what happens to the fluid that is NOT absorbed?
A
enters lymphatic capillaries and becomes lymph
* IF
* bacteria
* fats
* proteins
7
Q
blood components
A
- plasma (water, proteins, nutrients)
- erythrocytes (RBC)
- leukocytes (WBC)
- platelets
8
Q
plasma proteins
blood component
A
- albumin: carry fatty acids/steroids
- immunoglobulins/antibodies: play role in immune system
- fibrinogen: clotting factor, zymogen activated by platelets to form fibrin
9
Q
erythrocytes
A
- produced in bone marrow from stem cells
- no organelles, no nucleus, just hemoglobin
10
Q
leukocytes
A
- produced in bone marrow from stem cells
- can be granula/agranular
11
Q
granular leukocytes
A
- first line of defense, target anything foreign and have short lifetime
12
Q
agranular
A
second line, target specific things and have long lifetime
13
Q
platelets
A
- not cells
- chopped up megakaryocytes in bone marrow
- no nucleus but have Golgi, mitochondria, ER, etc.