Section Four: Lymphatic and Immune Systems

Which of the following cell types is/are located in lymph nodes to remove pathogens (bacteria and viruses) from the lymph before it returns to the venous system?

both lymphocytes and phagocytic cells

The lymphatic and immue systems are closely related to the cardiovascular system.

True

Which one of the following structures is drained by the thoracic duct?

right lower limb

Which one of the following is the CORRECT order of vessels that lymph travels from a tissue to the venous system?

capillaries, collecting vessels, trunks, ducts

Which one of the following structures is drained by the right lymphatic duct?

right chest region

Which one of the following choices is the location where the thoracic duct drains into the venous system?

junction of left internal jugular and left subclavian veins

Which one of the following structures of the lymphatic system is the smallest vessel to receive lymph?

lymphatic capillaries

Which one of the following structures DOES NOT have lymphatic drainage?

eyeballs

Which one of the following choices is the CORRECT direction lymph flows throughout the body?

direction of venous blood flow

Which one of the following terms defines the inflammation of a lymph node due to an injury or infection?

lymphadenitis

Which one of the following areas IS NOT drained by the right lymphatic duct?

right lower limb

Which one of the following trunks drains lymph from the head and neck region of the body?

jugular

The main function of the lymphatic system is to protect our bodies from foreign organisms by fighting infections and developing immunity to the disease.

False

Which one of the following terms is used to describe the accumulation of excess fluid (swelling) due to a blockage in the lymphatic system preventing the drainage of lymph from a particular body region?

lymphedema

Which one of the following choices is how lymph is transported through the lymphatic system?

valves

bulging of contracting skeletal muscles

pulsation of nearby arteries

contraction of smooth muscle in the walls of the lymphatic vessels

What percentage of lymph from the lateral portion of a breast drains into axillary (armpit) lymph nodes?

75

Which one of the following veins is an unpaired vessel that drains venous blood DIRECTLY into the superior vena cava?

azygos vein

Which one of the following choices is a bean-shaped structure located along the lymphatic vessels and is responsible for filtering lymph?

lymph nodes

How many lymphatic trunks are located in the lymphatic system of the human body?

5

What two vessels join together to drain venous blood directly into the superior vena cava?

right brachiocephalic and left brachiocephalic veins

Which one of the following tonsils is located in the posterior, superior wall of the nasopharynx?

pharyngeal

Which one of the following lymphoid organs is the largest?

spleen

Which one of the following tonsils is located at the posterior margin of the oral cavity along the boundary of the pharynx to the soft palate and is commonly infected and removed during childhood?

palatine

Which one of the following IS NOT a lymphoid organ?

liver

Which one of the following lymphoid organs functions to produce lymphocytes?

bone marrow and thymus

Which one of the following cells types provides a key defense of the immune system?

lymphocytes

Which one of the following structures is a component of the immune system?

lymphocytes

lymphoid tissues

lymphoid organs

lymphoid nodules

Mucosa-associated lymphoid tissue (MALT) is located in which of the following body systems?

digestive

respiratory

urinary

reproductive

Each lymphocyte recognizes and acts against ______.

antigens

Which one of the following lymphoid organs begins to atrophy during adolescence and is replaced by a fibrous and fatty tissue?

thymus