Module 4 Exam Review / 80+ questions
Module 4: The Lymphatic System and Immunity
By PortageMaster
Correct answers
Section 1: Lymphatic System Structure and Function
Question 1
What is the primary function of the lymphatic system regarding fluid balance?
• = Transporting hormones throughout the body
• ✅ Returning excess interstitial fluid to the bloodstream
• = Producing red blood cells
• = Filtering metabolic waste from the blood
Question 2
The fluid contained within lymphatic vessels is known as:
• = Interstitial fluid
• = Blood plasma
• ✅ Lymph
• = Synovial fluid
,Question 3
Lymphatic capillaries are more permeable than blood capillaries due to the
presence of:
• = Tight junctions
• ✅ Mini-valves (or flaps) formed by overlapping endothelial cells
• = A thick basement membrane
• = Cilia
Question 4
Where does lymph re-enter the cardiovascular system?
• = Cisterna chyli
• = Jugular veins
• ✅ Subclavian veins
• = Aorta
Question 5
The right lymphatic duct drains lymph into the junction of the right:
• = Internal jugular and right brachiocephalic veins
• ✅ Internal jugular and right subclavian veins
• = External jugular and right subclavian veins
• = Subclavian and right vertebral veins
, Question 6
The largest lymphatic vessel, which drains the lower body and left upper body, is
the:
• = Right lymphatic duct
• = Thoracic aorta
• ✅ Thoracic duct
• = Cisterna chyli
Question 7
The cisterna chyli is an enlarged sac at the origin of the:
• = Right lymphatic duct
• ✅ Thoracic duct
• = Aorta
• = Spleen
Question 8
Lacteals, a type of lymphatic capillary, are found in the intestine and absorb what
type of biomolecule?
• = Glucose
• = Amino acids
• ✅ Fats (lipids)
• = Water-soluble vitamins