Lymphatic System Quiz

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Questions and Answers

Which of the following is NOT a function of the lymphatic system?

  • Defending against bacteria
  • Transporting oxygen (correct)
  • Maintaining fluid balance
  • Absorbing fats

What is the composition of lymph?

  • Red blood cells
  • White blood cells
  • Platelets
  • Plasma with leukocytes (correct)

What are the lymphatic vessels subdivided into, from smallest to largest?

  • Lymphatic ducts, trunks, vessels, capillaries
  • Lymphatic vessels, capillaries, trunks, ducts
  • Lymphatic vessels, trunks, capillaries, ducts
  • Lymphatic capillaries, vessels, trunks, ducts (correct)

What is the function of lymphatic capillaries?

<p>To absorb excess fluid around capillary beds (A)</p> Signup and view all the answers

Which lymphatic organ is responsible for filtering lymph and removing harmful substances?

<p>Lymph nodes (B)</p> Signup and view all the answers

What is the role of lymphatic vessels' valves?

<p>To prevent pooling of lymph (B)</p> Signup and view all the answers

What is the primary function of the lymphatic system in the digestive system?

<p>Facilitating absorption of fats and fat-soluble nutrients (B)</p> Signup and view all the answers

What is the arterial end of the capillary bed responsible for?

<p>Forcing fluid into interstitial space (D)</p> Signup and view all the answers

What is the venous end of the capillary bed responsible for?

<p>Reabsorbing most but not all fluid (C)</p> Signup and view all the answers

What is the approximate daily volume of excess fluid absorbed by lymph vessels?

<p>3L (C)</p> Signup and view all the answers

Which one of the following is NOT a major lymphatic trunk?

<p>Intestinal trunk (B)</p> Signup and view all the answers

Where does the cisterna chyli receive lymph from?

<p>Left and right lumbar trunks (D)</p> Signup and view all the answers

Which lymphatic duct receives lymph from the right side of the head and neck, right arm, and right thorax?

<p>Right lymphatic duct (B)</p> Signup and view all the answers

Which lymphatic duct receives lymph from the left side of the head and neck, left arm, left thorax, and everything inferior to the diaphragm?

<p>Left lymphatic duct (C)</p> Signup and view all the answers

What is the function of lymphatic nodules?

<p>To detect antigens and start immune response (D)</p> Signup and view all the answers

What is the function of tonsils?

<p>To protect the pharynx from infection (A)</p> Signup and view all the answers

Which lymphatic organ is large in infants and young but almost nonfunctional in adults?

<p>Thymus (D)</p> Signup and view all the answers

What is the largest lymphatic organ?

<p>Spleen (C)</p> Signup and view all the answers

Which lymphatic organ monitors blood for pathogens?

<p>Spleen (D)</p> Signup and view all the answers

What divides the spleen into nodules consisting of an arteriole surrounded by white pulp and feeding sinusoid capillaries surrounded by red pulp?

<p>Trabeculae (D)</p> Signup and view all the answers

The lymphatic system helps maintain fluid balance between the blood and tissues.

<p>True (A)</p> Signup and view all the answers

Lymph is a fluid connective tissue composed of plasma with erythrocytes.

<p>False (B)</p> Signup and view all the answers

One of the functions of the lymphatic system is to defend against bacteria and other intruders.

<p>True (A)</p> Signup and view all the answers

The lymphatic system facilitates absorption of fats and fat-soluble nutrients in the digestive system.

<p>True (A)</p> Signup and view all the answers

Lymphatic vessels absorb excess fluid around capillary beds.

<p>True (A)</p> Signup and view all the answers

Lymphatic capillaries have a larger diameter than blood capillaries.

<p>True (A)</p> Signup and view all the answers

Lymphatic vessels have valves that prevent pooling of lymph.

<p>True (A)</p> Signup and view all the answers

The cisterna chyli receives lymph from the lower limbs and abdomen.

<p>True (A)</p> Signup and view all the answers

The right lymphatic duct receives lymph from the right side of the head and neck, right arm, and right thorax.

<p>True (A)</p> Signup and view all the answers

The primary function of tonsils is to filter lymph and remove harmful substances.

<p>True (A)</p> Signup and view all the answers

Lymphatic trunks drain lymph from major body regions.

<p>True (A)</p> Signup and view all the answers

The cisterna chyli receives lymph from the small intestine during digestion of fatty foods.

<p>True (A)</p> Signup and view all the answers

The right lymphatic duct receives lymph from the right side of the head and neck, right arm, and right thorax.

<p>True (A)</p> Signup and view all the answers

MALT stands for Mucosa-Associated Lymphatic Tissue.

<p>True (A)</p> Signup and view all the answers

Tonsils protect the pharynx from infection.

<p>True (A)</p> Signup and view all the answers

The thymus is larger in infants and young individuals compared to adults.

<p>True (A)</p> Signup and view all the answers

Lymph nodes monitor lymph for pathogens.

<p>True (A)</p> Signup and view all the answers

The spleen is the largest lymphatic organ.

<p>True (A)</p> Signup and view all the answers

Lymphatic vessels are subdivided into capillaries, vessels, trunks, and ducts.

<p>True (A)</p> Signup and view all the answers

Lymphatic capillaries primarily function to absorb excess fluid from the interstitial spaces.

<p>True (A)</p> Signup and view all the answers

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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

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