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Questions and Answers
Which of the following is NOT a component of the lymphatic system?
Which of the following is NOT a component of the lymphatic system?
- Thymus
- Lymph nodes
- Liver (correct)
- Spleen
What is the primary function of the lymphatic system?
What is the primary function of the lymphatic system?
- Transporting oxygen to the cells
- Producing red blood cells
- Returning excess interstitial fluid to the cardiovascular system (correct)
- Filtering waste materials from the blood
What is the fluid carried by the lymphatic system called?
What is the fluid carried by the lymphatic system called?
- Plasma
- Blood
- Cerebrospinal fluid
- Lymph (correct)
What is the role of lymph nodes in the lymphatic system?
What is the role of lymph nodes in the lymphatic system?
What is the main function of the thymus?
What is the main function of the thymus?
What is the function of the spleen in the lymphatic system?
What is the function of the spleen in the lymphatic system?
What is the characteristic of lymph fluid that differentiates it from plasma?
What is the characteristic of lymph fluid that differentiates it from plasma?
What is the final destination of lymph before it is emptied into the bloodstream?
What is the final destination of lymph before it is emptied into the bloodstream?
Components of the peripheral/secondary compartment
Components of the peripheral/secondary compartment
What are the two classifications/compartments of lymphoid organs?
What are the two classifications/compartments of lymphoid organs?
Which organ acts as a reservoir for blood when the animal is at rest?
Which organ acts as a reservoir for blood when the animal is at rest?
What is the function of the tonsils in the lymphatic system?
What is the function of the tonsils in the lymphatic system?
Where is the spleen located in the body?
Where is the spleen located in the body?
What is/are the components of the primary/central lymphoid organs
What is/are the components of the primary/central lymphoid organs
What does GALT refer to?
What does GALT refer to?
The spleen is a ________ shaped organ
The spleen is a ________ shaped organ
Which lymphatic structure is found at the beginning of lymph drainage system?
Which lymphatic structure is found at the beginning of lymph drainage system?
The spleen is covered with a __________ of __________ connective tissue and _________
The spleen is covered with a __________ of __________ connective tissue and _________
Which lymphatic structure is found close to moist epithelial surfaces?
Which lymphatic structure is found close to moist epithelial surfaces?
What do the smooth muscle cells in the spleen do
What do the smooth muscle cells in the spleen do
When storage spaces are filled with blood the spleen gets:
When storage spaces are filled with blood the spleen gets:
The lymph system is the 2nd largest component of the immune system, True or false
The lymph system is the 2nd largest component of the immune system, True or false
The lymphatic vessels associated with the Malt-mucosa are
The lymphatic vessels associated with the Malt-mucosa are
Why is there more excess tissue fluid?
Why is there more excess tissue fluid?
Lymph is carried through squamous epithelial cells and deposited back into the blood stream. True or false
Lymph is carried through squamous epithelial cells and deposited back into the blood stream. True or false
What are the two separate parts of animal's immune system
What are the two separate parts of animal's immune system
30% of the intestinal musoca is GALT. True or False
30% of the intestinal musoca is GALT. True or False
Term for lymphoid tissue found in the lining of the intestines
Term for lymphoid tissue found in the lining of the intestines
What is the location for the production of lymphocytes
What is the location for the production of lymphocytes
What is the name of the lymph node palpated at the ventral aspect of jaw
What is the name of the lymph node palpated at the ventral aspect of jaw
What organ has both lymphatic and hematological functions
What organ has both lymphatic and hematological functions
Where does lymph in the lymphatic duct drain into
Where does lymph in the lymphatic duct drain into
Name of the lymph node found on the caudal aspect of the stifle
Name of the lymph node found on the caudal aspect of the stifle
The capillaries have high enough _____ causing plasma to be pushed into the tissues
The capillaries have high enough _____ causing plasma to be pushed into the tissues
Type of blood capillary that pushes plasma out of the blood vessels and into the tissues
Type of blood capillary that pushes plasma out of the blood vessels and into the tissues
Where are the submandibular lymph nodes located?
Where are the submandibular lymph nodes located?
What type of movement involving fluid moves most of the plasma back into the blood stream
What type of movement involving fluid moves most of the plasma back into the blood stream
What is the large lymph vessel that deposits the lymph fluid back into the blood stream
What is the large lymph vessel that deposits the lymph fluid back into the blood stream
When compared with blood plasma lymph has a ______ protein value
When compared with blood plasma lymph has a ______ protein value
Which of the following is associated with GALT
Which of the following is associated with GALT
As lymph passes through the lymph node what cells found in the tissues acts to filter the lymph of microorganisms
As lymph passes through the lymph node what cells found in the tissues acts to filter the lymph of microorganisms
A unique feature of tonsils when compared to lymph nodes is that they do not have _________ surrounding the tissue
A unique feature of tonsils when compared to lymph nodes is that they do not have _________ surrounding the tissue
lymph vessels closely follow the path of _______ as they return to the heart
lymph vessels closely follow the path of _______ as they return to the heart
Capillaries in the tissue join to form larger vessels in order to?
Capillaries in the tissue join to form larger vessels in order to?
Lymph fluid contains varying numbers of cells, primarily thymocytes. True or False
Lymph fluid contains varying numbers of cells, primarily thymocytes. True or False
Lymph fluid is a transparent or translucent liquid. True or False
Lymph fluid is a transparent or translucent liquid. True or False
What is excessive interstitial fluid picked up by?
What is excessive interstitial fluid picked up by?
Fluid enters/leaves tissue spaces due to _________ __________ and ___________ __________
Fluid enters/leaves tissue spaces due to _________ __________ and ___________ __________
What joins together to form larger and larger lymph vessels
What joins together to form larger and larger lymph vessels
What propels lymph towards the heart
What propels lymph towards the heart
Lymph passes through at least _____ lymph node and picks up ________
Lymph passes through at least _____ lymph node and picks up ________
What do macrophages in lymph node remove?
What do macrophages in lymph node remove?
Where is the thoracic duct located
Where is the thoracic duct located
Which of the following IS a function of lymph
Which of the following IS a function of lymph
Which of the following IS a function of lymph
Which of the following IS a function of lymph
Which of the following IS a function of lymph
Which of the following IS a function of lymph
Lymph nodes trap foreign materials in lymph. True or false
Lymph nodes trap foreign materials in lymph. True or false
Lymph nodes are large, kidney bean shaped filters located along lymphatic vessels. True or False
Lymph nodes are large, kidney bean shaped filters located along lymphatic vessels. True or False
Which of the following IS a function of lymph nodes
Which of the following IS a function of lymph nodes
What happens to lymph nodes in response to antigenic stimulation
What happens to lymph nodes in response to antigenic stimulation
What is the procedure needed for evaluation of abnormalities in the lymph nodes
What is the procedure needed for evaluation of abnormalities in the lymph nodes
Lymph node that is located just behind each side of your jaw in your neck region
Lymph node that is located just behind each side of your jaw in your neck region
Identify the lymph nodes palpated during examination
Identify the lymph nodes palpated during examination
When the body needs excess blood cells it:
When the body needs excess blood cells it:
What are tonsils classed as
What are tonsils classed as
Cells leave the thymus and travel to
Cells leave the thymus and travel to
The thymus is important in
The thymus is important in
Most prominent in young animals and is located in the cranial thoracic region
Most prominent in young animals and is located in the cranial thoracic region
What is the function of the GALT (gut associated lymph tissue)?
What is the function of the GALT (gut associated lymph tissue)?
What is the function of the spleen when the body needs excess blood cells?
What is the function of the spleen when the body needs excess blood cells?
Study Notes
Components of the Lymphatic System
- Lymphatic system includes lymph nodes, spleen, thymus, and tonsils; some structures like the liver are not part of it.
- Key fluid carried by the lymphatic system is called lymph.
- Lymph is distinct from blood plasma due to lower protein content.
Primary Functions
- Primary function of the lymphatic system: maintaining fluid balance, transporting lipids, and providing immune responses.
- Lymph nodes filter lymph, trapping foreign materials and microorganisms.
- Thymus primarily functions in the production and maturation of T-lymphocytes.
Lymphatic Structures and Their Roles
- Spleen functions in blood storage, immune response, and filtering blood.
- Tonsils help trap pathogens entering through the mouth and nose.
- GALT refers to Gut-Associated Lymphoid Tissue, important for gut immunity.
Lymph Node Functionality
- Lymph nodes are large filters along lymphatic vessels, reacting to antigenic stimulation by enlarging.
- Macrophages in lymph nodes remove pathogens and debris from lymph fluid.
- Evaluation of lymph nodes for abnormalities typically requires a procedure called lymph node aspirate.
Blood and Lymph Circulation
- Lymphatic vessels collect excess interstitial fluid, returning it to the bloodstream.
- Lymph is propelled through vessels by smooth muscle contractions and skeletal muscle movement aiding its journey to the heart.
- Final destination of lymph is entering the bloodstream via the thoracic duct.
Anatomical Locations
- Spleen location: left side of the abdominal cavity, between stomach and diaphragm.
- Submandibular lymph nodes are located beneath the jaw.
- Lymph node behind the stifle is known as the popliteal lymph node.
Immune System Overview
- Two separate parts of the immune system: innate and adaptive immunity.
- GALT comprises about 30% of the intestinal mucosa.
Lymphatic System in Animals
- Spleen acts as a blood reservoir in animals at rest.
- Kidneys and lymph nodes undergo reactive changes in response to infection.
Miscellaneous
- Tonsils do not have a capsule surrounding them, unlike lymph nodes.
- Lymph fluid is typically transparent or translucent and may contain varying numbers of cells, primarily T-cells.
- Lymphatic capillaries join to form larger vessels, facilitating lymph transportation back to the bloodstream.
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Description
Test your knowledge of lymphatic tissue anatomy and function with this quiz! Learn about the structure and function of the lymphatic system, how lymph is removed and transported, and the characteristics of lymph. Identify lymph node structures and common palpation points.
