Lymphatic System Flashcards
It is a vast collection of cells and biochemical that travel in lymphatic vessels
Lymphatic system
Lymphatic system is a network of vessels that assist in
Circulating fluids
Lymphatic system is closely associated with _____ system
Circulatory
Lymphatic system consists of
Lymph
Lymphatic capillaries and vessels
Lymphatic tissues and organs
What are the 2 major site of the lymphatic system
Primary major site
Secondary major site
Identify the major site of the lymphatic system:
It is the site where stem cells divide
Primary major site
Identify the major site of the lymphatic system:
It is the site where most immune response occur
Secondary major site
Identify the major site of the lymphatic system:
It provide location for B and T lymphocytes to mature (thymus and bone marrow)
Primary Major site
Where do the primary major site can be found at
Thymus and
Bone marrow
Where do the secondary major site can be found at
Lymph nodes
Tonsils
Peyer’S patch
Spleen
It absorb digested fat and fat- soluble vitamins
Lacteals
What are the functions of the lymphatic system
Fluid balance
Liquid absorption
Defense
Lacteals absorb ______ and _____
Digested fat
Fat-soluble vitamins
Identify the functions of the lymphatic system:
Removes excess tissue fluid and returns it to the bloodstream.
Fluid balance
In the function of fluid balance,
Approximately 30L of fluid pass from the blood capillaries into the ____ each day, whereas only ____ pass from the intertital fluid back into the capillaries
Intertestial fluid
27L
If extra of 3L of fluid were to remain in the intertestial fluid =
Result in Edna
Which causes tissue damage and eventual death
The remaining of 3L of fluid is supposed to enter the ______, where it is called ____ that passes through the _____ back to the blood
Lymphatic capillaries
Lymph
Lymphatic vessels
The lymphatic system absorbs lipids and other substances from the digestive tract through lymphatic vessels called ….
Lacteals
Lipids enter the lacteals and pass through the _____ to the _____
Lymphatic vessels
Venous circulation
Pathogens are filtered from lymph by ____ and from blood by the spleen
Lymph nodes
lymphocytes and other cells are capable of destroying …
Microorganisms and other foreign substances
As the lymphatic system fights infections and filters ____ and ____ to remove microorganisms, many infectious disease produce symptoms associated with the lymphatic system
Blood
Lymph
It is a specialized lymph capillaries located in villi of small intestine that absorb digested fat and fat-soluble vitamins and carry them to the general circulation
Lacteals
Intertestial fluid is also known as
Intercellular fluid
The lymph passing through these lymphatic vessels, called ____
Chyle
Chyle appears white because of
It’s lipid content
It acts as the intermediary between the blood in capillaries and the tissue
Intertestial fluid
The interstitial fluid diffuses from the ____ into the ____
Capillaries
Tissue fluid
The fluid fills the surrounding spaces between _____, it is also referred to as intercellular fluid
Tissue cells
What is the composition of the interstitial fluid
Water
Carbon dioxide
Digestive nutrients
Salts
Urea
Hormones
Lymphocyte
Granylocyte
The interstitial fluid has similar composition to …
Blood plasma
The interstitial fluid carries metabolic waste products (CO2 & urea) from _____ back into the _____ for excretion
Cells
Capillaries
In the interstitial fluid, do most of the fluid are reabsorbed into the capillaries
Yes
When excess fluid enters the lymphatic capillaries, it is called
Lymph
If some of the fluid that are not reabsorbed, it can result to
Edema aka swelling of the tissues
Excess fluid passes through the tissue spaces and enters lymphatic capillaries to become
Lymph
It is a clear and colorless fluid
Lymph
It flows in one direction towards the heart and through the lymphatic vessels
Lymph
Do lymph flow in one direction?
Yes
Lymph flow in one direction toward the …. Through the …
Heart
Lymphatic vessel
What is the compositions of the lymph?
Water and solutes derived from 2 sources. What are they?
Substance in plasma
Substance derived from cells
In the composition of lymph, what are the substances in plasma
Nutrients
Proteins
Ions
Gases
In the composition of lymph, what are the substances derived from cells
Hormones
Enzymes
Waste products
It run parallel to blood capillaries in all body tissues
Lymphatic capillaries
Lymphatic capillaries is made of
Simple squamous epithelium
Lymphatic system allows ____ of tissue fluid from interstitial spaces into the lymphatic pathway
Diffusion
It has thin walls and values to prevent backflow
Lymphatic vessels
Lymphatic capillaries is responsible for absorbing ______ in the small intestine, using specialized capillaries, _____
Small chain fatty quids
Lacteals
It is located in almost all of the tissues and organs that have blood vessels
Lymphatic vessels
As the lymphatic vessels progress on their path toward the ____ , they converge to form _____
Then it leads to ______ and then merge to ______
Heart
Larger and large vessels
Lymph modes
Larger lymphatic trunks
Large vessels lead to lymph nodes, where immune cells…
Phagocytize bacteria
The lymphatic vessels continue to merge,eventually forming still larger lymphatic thanks, which…
Drain major regions of the body
The 3 layers of lymphatic vessels
Endothelial lining
Smooth muscle
Connective tissue
Which layer of the lymphatic vessel is the outer
Connect tissue
Which layer of the lymphatic vessel is the inner layer
Endothelial lining
Which layer of the lymphatic vessel is the middle layer
Smooth muscles
Site of T lymphocytes maturation and production
Thymus
T and B lymphocytes develop from stem cells in…
Red bone narrow
T lymphocytes are commonly called
T cells
Thymus is divided into..
Cortex
Medulla
T cells leaves the bone marrow and travels to…(Where they remain until fully functional)
Thymus gland
Once T cells are immunocompetent. What is immunecompetent
Capable of recognizing antigens
Once t cells are immunocompetent, they leave thymus and migrate to
Secondary Lymphatic organs and tissues
It is a tiny oval-shaped structure
Lymph nodes
The lymph nodes are covered by a capsule of…
Fibrous connective tissue
How to differentiate between T cells and B cells
T cells mature in thymus
B cells mature in bone marrow
It is a T cells that bind with specific antigens presented by macrophages
Helper T cells
It kill viruses - invaded body wells and cancerous body cells
Killer T cells
It in filter potentially harmful particles from the lymph filter
Lymph modes
Produce lymphocytes to destroy invading bacteria
Lymph nodes
Lymph nodes produce _____ to destroy invading bacteria
Lymphocytes
