40 Questions
Which of the following is NOT a function of the lymphatic system?
Transporting oxygen
What is the composition of lymph?
Plasma with leukocytes
What are the lymphatic vessels subdivided into, from smallest to largest?
Lymphatic capillaries, vessels, trunks, ducts
What is the function of lymphatic capillaries?
To absorb excess fluid around capillary beds
Which lymphatic organ is responsible for filtering lymph and removing harmful substances?
Lymph nodes
What is the role of lymphatic vessels' valves?
To prevent pooling of lymph
What is the primary function of the lymphatic system in the digestive system?
Facilitating absorption of fats and fat-soluble nutrients
What is the arterial end of the capillary bed responsible for?
Forcing fluid into interstitial space
What is the venous end of the capillary bed responsible for?
Reabsorbing most but not all fluid
What is the approximate daily volume of excess fluid absorbed by lymph vessels?
3L
Which one of the following is NOT a major lymphatic trunk?
Intestinal trunk
Where does the cisterna chyli receive lymph from?
Left and right lumbar trunks
Which lymphatic duct receives lymph from the right side of the head and neck, right arm, and right thorax?
Right lymphatic duct
Which lymphatic duct receives lymph from the left side of the head and neck, left arm, left thorax, and everything inferior to the diaphragm?
Left lymphatic duct
What is the function of lymphatic nodules?
To detect antigens and start immune response
What is the function of tonsils?
To protect the pharynx from infection
Which lymphatic organ is large in infants and young but almost nonfunctional in adults?
Thymus
What is the largest lymphatic organ?
Spleen
Which lymphatic organ monitors blood for pathogens?
Spleen
What divides the spleen into nodules consisting of an arteriole surrounded by white pulp and feeding sinusoid capillaries surrounded by red pulp?
Trabeculae
The lymphatic system helps maintain fluid balance between the blood and tissues.
True
Lymph is a fluid connective tissue composed of plasma with erythrocytes.
False
One of the functions of the lymphatic system is to defend against bacteria and other intruders.
True
The lymphatic system facilitates absorption of fats and fat-soluble nutrients in the digestive system.
True
Lymphatic vessels absorb excess fluid around capillary beds.
True
Lymphatic capillaries have a larger diameter than blood capillaries.
True
Lymphatic vessels have valves that prevent pooling of lymph.
True
The cisterna chyli receives lymph from the lower limbs and abdomen.
True
The right lymphatic duct receives lymph from the right side of the head and neck, right arm, and right thorax.
True
The primary function of tonsils is to filter lymph and remove harmful substances.
True
Lymphatic trunks drain lymph from major body regions.
True
The cisterna chyli receives lymph from the small intestine during digestion of fatty foods.
True
The right lymphatic duct receives lymph from the right side of the head and neck, right arm, and right thorax.
True
MALT stands for Mucosa-Associated Lymphatic Tissue.
True
Tonsils protect the pharynx from infection.
True
The thymus is larger in infants and young individuals compared to adults.
True
Lymph nodes monitor lymph for pathogens.
True
The spleen is the largest lymphatic organ.
True
Lymphatic vessels are subdivided into capillaries, vessels, trunks, and ducts.
True
Lymphatic capillaries primarily function to absorb excess fluid from the interstitial spaces.
True
Study Notes
Lymphatic System Functions
- Defends against bacteria and other intruders
- Facilitates absorption of fats and fat-soluble nutrients in the digestive system
- Helps maintain fluid balance between the blood and tissues
Composition of Lymph
- A fluid connective tissue composed of plasma with no erythrocytes
Lymphatic Vessels
- Subdivided into capillaries, vessels, trunks, and ducts
- Have valves that prevent pooling of lymph
- Capillaries have a larger diameter than blood capillaries
- Primarily function to absorb excess fluid from the interstitial spaces
Lymphatic Capillaries
- Absorb excess fluid around capillary beds
Lymphatic Organs
- Tonsils: protect the pharynx from infection
- Thymus: larger in infants and young individuals compared to adults
- Spleen: the largest lymphatic organ, monitors blood for pathogens
- Lymph nodes: filter lymph and remove harmful substances, monitor lymph for pathogens
Lymphatic Trunks and Ducts
- Cisterna chyli: receives lymph from the lower limbs and abdomen
- Right lymphatic duct: receives lymph from the right side of the head and neck, right arm, and right thorax
- Left lymphatic duct: receives lymph from the left side of the head and neck, left arm, left thorax, and everything inferior to the diaphragm
Lymphatic System Statistics
- Approximate daily volume of excess fluid absorbed by lymph vessels: unknown
- MALT stands for Mucosa-Associated Lymphatic Tissue
Test your knowledge of the lymphatic system with this quiz! Learn about the functions and components of this vital system that helps maintain fluid balance in the body.
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