BIOD 152 Module 5 Exam: Questions & Answers: Latest
Updated A+ Score Guide
1. Labeling and Lymphatic Anatomy
Question 1
Which lymphoid organ is highlighted in blue in the anterior chest region, superior
to the heart?
• A. Spleen
• B. Thyroid gland
• C. Thymus gland
• D. Palatine tonsil
• Correct Answer: C. Thymus gland
• Rationale: The thymus gland is located in the anterior mediastinum,
superior to the heart, and undergoes significant age-related changes.
Question 2
Which lymphoid organ is highlighted in blue in the upper left abdominal
quadrant?
• A. Spleen
• B. Liver
• C. Left Kidney
• D. Pancreas
• Correct Answer: A. Spleen
• Rationale: The spleen is located in the left upper quadrant of the abdomen.
Question 3
,Name the large lymphatic vessel that runs vertically along the left side of the spine
and empties into the left venous system.
• A. Right lymphatic duct
• B. Thoracic duct
• C. Left subclavian vein
• D. Axillary vein
• Correct Answer: B. Thoracic duct
• Rationale: The thoracic duct (also known as the left lymphatic duct) is the
main vessel draining lymph from the left side of the body and both lower
extremities into the left subclavian vein.
Question 4
Which lymphatic vessel empties into the right subclavian area to drain the upper
right quadrant of the body?
• A. Right subclavian duct
• B. Thoracic duct
• C. Right lymphatic duct
• D. Right jugular trunk
• Correct Answer: C. Right lymphatic duct
• Rationale: The right lymphatic duct drains lymphatic fluid from the right
side of the upper body into the venous circulation.
Question 5
True or False: Lymph flows from the heart out to the tissues via the lymphatic
vessels.
• A. True
• B. False
, • Correct Answer: B. False
• Rationale: Lymphatic flow is unidirectional, moving only in one direction
from the tissues back to the heart/venous system.
Question 6
True or False: Lymph flows in one direction from the body tissues to the venous
system.
• A. True
• B. False
• Correct Answer: A. True
• Rationale: The lymphatic system operates as a one-way system carrying
excess interstitial fluid from the tissues to the subclavian veins.
Question 7
What is the primary function of the lymphatic system regarding fluid inside tissues
that is not returned via the veins?
• A. It is excreted by the kidneys.
• B. It is returned to the heart through the lymphatic system.
• C. It remains in the tissues to provide structural support.
• D. It is metabolized by local tissue cells.
• Correct Answer: B. It is returned to the heart through the lymphatic system.
• Rationale: Fluid inside tissues that is not returned via the veins is returned
to the heart through the lymph system to maintain blood volume.
Question 8
Which of the following represents the correct sequence of lymph fluid movement
through the body?
• A. Lymphatic Duct → lymph vessels → Lymph capillaries → Veins
Updated A+ Score Guide
1. Labeling and Lymphatic Anatomy
Question 1
Which lymphoid organ is highlighted in blue in the anterior chest region, superior
to the heart?
• A. Spleen
• B. Thyroid gland
• C. Thymus gland
• D. Palatine tonsil
• Correct Answer: C. Thymus gland
• Rationale: The thymus gland is located in the anterior mediastinum,
superior to the heart, and undergoes significant age-related changes.
Question 2
Which lymphoid organ is highlighted in blue in the upper left abdominal
quadrant?
• A. Spleen
• B. Liver
• C. Left Kidney
• D. Pancreas
• Correct Answer: A. Spleen
• Rationale: The spleen is located in the left upper quadrant of the abdomen.
Question 3
,Name the large lymphatic vessel that runs vertically along the left side of the spine
and empties into the left venous system.
• A. Right lymphatic duct
• B. Thoracic duct
• C. Left subclavian vein
• D. Axillary vein
• Correct Answer: B. Thoracic duct
• Rationale: The thoracic duct (also known as the left lymphatic duct) is the
main vessel draining lymph from the left side of the body and both lower
extremities into the left subclavian vein.
Question 4
Which lymphatic vessel empties into the right subclavian area to drain the upper
right quadrant of the body?
• A. Right subclavian duct
• B. Thoracic duct
• C. Right lymphatic duct
• D. Right jugular trunk
• Correct Answer: C. Right lymphatic duct
• Rationale: The right lymphatic duct drains lymphatic fluid from the right
side of the upper body into the venous circulation.
Question 5
True or False: Lymph flows from the heart out to the tissues via the lymphatic
vessels.
• A. True
• B. False
, • Correct Answer: B. False
• Rationale: Lymphatic flow is unidirectional, moving only in one direction
from the tissues back to the heart/venous system.
Question 6
True or False: Lymph flows in one direction from the body tissues to the venous
system.
• A. True
• B. False
• Correct Answer: A. True
• Rationale: The lymphatic system operates as a one-way system carrying
excess interstitial fluid from the tissues to the subclavian veins.
Question 7
What is the primary function of the lymphatic system regarding fluid inside tissues
that is not returned via the veins?
• A. It is excreted by the kidneys.
• B. It is returned to the heart through the lymphatic system.
• C. It remains in the tissues to provide structural support.
• D. It is metabolized by local tissue cells.
• Correct Answer: B. It is returned to the heart through the lymphatic system.
• Rationale: Fluid inside tissues that is not returned via the veins is returned
to the heart through the lymph system to maintain blood volume.
Question 8
Which of the following represents the correct sequence of lymph fluid movement
through the body?
• A. Lymphatic Duct → lymph vessels → Lymph capillaries → Veins
