Lab 4: Lymphatic System Flashcards
What color is lymph?
white
Lymph is transported through _____________________.
lymphatic vessels
The contents of lymph include ________________________ and ________________________
invading pathogens
lymphocytes
Lymphatic vessels are interspersed with ____________________.
lymph nodes
Lymphatic vessels eventually merge with the ___________________ system
cardiovascular
Extracellular fluid is formed when blood plasma exits the ___________ side of capillaries but does not re-enter the __________ side
Can lead to __________: accumulation of fluid in body tissues
arterial
venous
edema
Interstitial fluid is considered __________ once it enters the lymphatic vessels.
lymph
What is the path of lymph?
- Lymphatic Capillaries
- Lymphatic Collecting Vessels
- Lymphatic Ducts (Right Lymphatic Duct or Thoracic Duct)
- Returned to the heart via Subclavian veins (blood pressure maintenance).
Where does lymph from the legs and abdomen collect before entering the thoracic duct? This area also receives fatty chyle from intestines.
Cisterna Chyli
What area of the body does the right lymphatic duct drain?
Right side of Thorax, Head, and arm.
What area of the body does the Thoracic Duct drain?
The rest of the body besides the part of the body the right thoracic duct drains.
Is Lymph flow unidirectional or bi-directional? And in which direction(s)?
Unidirectional
toward the heart
They contain valves, and lymph fluid is moved around by massaging of skeletal muscle.
Lymph nodes are clustered in ___________ areas that are exposed to the ________________ environment.
moist
external
_____________ Ducts: multiple drain into one lymph node
Afferent
_____________ Duct: typically only one exits the lymph node
Efferent
____________: Superficial tissue
Cortex
______________: deep tissue
______________ is divided into __________
Medulla (1, 2)
follicles
What lymphatic structure atrophies with age?
Thymus
What is the function of the Thymus?
site of T-cell production
What is the function of the tonsils & what are the three pairs of them?
Filter air
- Palatine
- Lingual
- Pharyngeal
What is the function & location of the spleen?
The spleen filters blood.
It is located near the pancreas, in the upper left abdominal quadrant.
What is the location & function of Peyer’s patches?
Protects intestinal tract from bacterial growth.
Located across the GI tract
What lymphatic tissue is located across the GI tract?
Peyer’s Patches
What are the two types of lymphocytes?
T-Cells
B-Cells
How do T-Cells & B-Cells recognize pathogens?
antigens on their surface
If a non-self antigen is detected, ______________ will begin to produce antibodies.
B-cells
Antibodies also known as ___________________.
immunoglobulins
______________________: condition expressed by the extreme enlargement of an area of the body
Elephantiasis
Autoimmune disorder where antibodies will destroy the communication between muscles and nerves, resulting in a weakness of the skeletal muscles.
Myasthenia Gravis
