Topic 13 - Lymphatic System Flashcards
Overview
includes
- lymph vessels + organs
- T & B lymphocyutes
- protect body against bacteria, viruses, cancer cells
List the majorextracellular fluids
- Blood plasma
- Interstitial fluid (ISF)
- Lymph
blood plasma
fluid in blood
Interstitial Fluid (ISF)
bathes cells (except blood cells)
Lymph
where is it located?
inside lymphatic vessels
Lymphatic Circulation
1 (ISF)
- how is ISF formed?
- how much of ISF goes where?
ISF - formed by capillaries leaking plasma
- 90% re-enters blood in capillaries + venules
- 10% into lymphatic circulation (now called lymphs)
Lymphatic circulation
2 (lymph)
- where does lymph enter?
- what does that connect to?
- enters lymphatic capillaries (closed ended vessels)
- lymphatic capillaries connect to lymphatyic collecting vessels (have valves)
lymphatic circulation
3
lymphatic capillaries connect to lymphatyic collecting vessels (have valves)
- what filters what?
- what is transported away from _____ and to where?
- lymph nodes along vessels filter lymph (bacteria, debris)
- transport lymph fluid away from tissues to:
- right lymphatic duct
- thoracic duct
transport lymph fluid away from tissues to right lymphatic duct
- ?
lymph from right head, chest, + arm
- drains into right subclavian vein reentering circulation
transport lymph fluid away from tissues to thoracic duct
- ?
lymph from below ribs + left body
- collecting vessels from below the ribs converge to an enlarged lymph vessel = cisterna chyli
- thoracic duct drains into LEFT subclavian vein reentering blood circulation
collecting vessels from below the ribs converge to an enlarged lymph vessel is called the ____ _______
cisterna chyli (the beginning of the thoracic duct)
lymphatic circulation starts at the
lymphatic capillaries
lymphatic circulation
from lymphatic capillaries to the:
lymphatic collecting vessels (with valves)
lymphatic circulation
from lymphatic collecting vessels (With valves) to
lymphatic ducts
lymphatic circulation
from lymphatic ducts to
subclavian veins
Lymphatic tissues and organs
What are the primary lymphatic organ and tissues?
- red bone marrow
- thymus gland
Lymphatic tissues and organs
- What are the secondary lymphatic organ and tissues?
- what happens here?
- lymph nodes
- spleen
- mucosal associated lymphoid tissue (MALT)
it is where lymphocytes proliferate
PRIMARY LYMPHATIC ORGAN + TISSUE
red bone marrow
- lymphocytes arise here
- B lymphocytes mature and proliferate (mitosis) here
PRIMARY LYMPHATIC ORGAN + TISSUE
thymus gland
- T lymphocytes mature and proliferate (mitosis) here
SECONDARY LYMPHATIC ORGAN + TISSUE
lymph nodes
name its locations
- locations:
- cervical
- axillary (armpit)
- inguinal (groin)
- intestinal
- pelvic
SECONDARY LYMPHATIC ORGAN + TISSUE
spleen
- filters blood
- e.g. removes bacteria
SECONDARY LYMPHATIC ORGAN + TISSUE
mucosal associated lymphoid tissue (MALT)
- e.g. tonsils, appendix, lymphoid tissues on mucous membranes
- tonsils
- adenoids = pharyngeal
- palatine
- lingual
tonsils
adenoids = pharyngeal
1
nasopharynx
tonsils
palatine
how many?
where is it located?
fact:
- 2
- in oropharynx
- commonly removed
lingual
how many?
where is it located?
- 1
- base of posterior part of tongue
what does MALT stand for
musosal associated lymphoid tissue
