Portage Learning BIOD 152 Lab 3 Exam 2026/2027 - 2026/2027 Official Exam
OBJECTIVE ASSESSMENT - EXAM
Portage Learning BIOD 152 Lab 3 Exam 2026/2027 - 2026/2027
Official Exam
50 100%
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
Lymphatic System Lab Digestive System Lab
Immune System Lab Urinary System Lab
Respiratory System Lab
COVER PAGE - 1
,SECTION 1 | Lymphatic System Lab | Q1-Q10 | Portage Learning BIOD 152 Lab 3 Exam 2026/2027 - 2026/2027
Official Exam 2026/2027
Q1 Question 1 of 50
Q1. A 28-year-old cadaver donor is dissected in the anatomy lab and a student traces a thin-walled
vessel running along the left side of the vertebral column that drains the lower limb, left pelvis, and left
abdomen upward into the venous system. The vessel being identified is:
A. The right lymphatic duct, which drains the right upper quadrant of the body
B. The cisterna chyli, a dilation at the start of the thoracic duct
C. The thoracic duct, the largest lymphatic vessel in the body
D. The cysterna magna, located at the base of the brain
Correct Answer: C
Rationale:
The thoracic duct is the largest lymphatic vessel, ascending along the vertebral column and draining lymph from the lower
limbs, abdomen, left thorax, left upper limb, and left head into the left subclavian vein. The right lymphatic duct drains only
the right upper quadrant, and the cisterna chyli is just the lower dilation that gives rise to the thoracic duct rather than the
full vessel.
Q2 Question 2 of 50
Q2. During a histology lab, a student examines a slide of a lymph node under low power and notes an
outer dark-staining region packed with lymphocytes surrounding a paler inner region. The dark outer
region is correctly identified as:
A. The medulla, which contains medullary cords and sinuses
B. The cortex, which contains lymphoid nodules and germinal centers
C. The hilum, where blood vessels enter and exit the node
D. The capsule, the dense connective tissue covering the node
Correct Answer: B
Rationale:
The cortex is the outer dark-staining region of a lymph node, packed with B-lymphocytes arranged in lymphoid nodules
and germinal centers. The medulla is the paler inner region with medullary cords and sinuses, the hilum is the indentation
where vessels enter and exit, and the capsule is the thin outer connective tissue layer rather than the dark-staining
cellular cortex.
Portage Learning BIOD 152 Lab 3 Exam 2026/2027 - 2026/2027 Official Exam - 2026/2027 | Passing Score: 80% | Page 2 of 27
, Q3 Question 3 of 50
Q3. A laboratory model shows a cluster of small oval lymphoid organs situated along the path of the
lymphatic vessels in the cervical, axillary, and inguinal regions. A student is asked what function these
organs serve, and the best answer is:
A. Production of red blood cells in adult life
B. Filtration of lymph and initiation of immune responses to foreign antigens
C. Storage of bile for fat emulsification
D. Production of digestive enzymes for protein breakdown
Correct Answer: B
Rationale:
Lymph nodes filter lymph as it passes through sinuses lined with macrophages and lymphocytes, trapping pathogens and
initiating adaptive immune responses. Red blood cell production occurs in red bone marrow, bile storage occurs in the
gallbladder, and digestive enzymes are produced by the pancreas and intestinal glands rather than by lymph nodes.
Q4 Question 4 of 50
Q4. While examining a spleen specimen in the histology lab, the instructor asks which cells are
concentrated in the white pulp, and the correct identification is:
A. Splenic macrophages that remove aged red blood cells
B. Lymphocytes arranged around central arteries that monitor blood-borne antigens
C. Venous sinusoids filled with stored blood
D. Megakaryocytes that produce platelets
Correct Answer: B
Rationale:
The white pulp of the spleen is lymphoid tissue organized as periarterial lymphatic sheaths around central arteries,
populated by T- and B-lymphocytes that monitor blood for antigens. Red pulp contains splenic macrophages and venous
sinusoids for red blood cell filtration, and megakaryocytes reside in bone marrow rather than the spleen.
Portage Learning BIOD 152 Lab 3 Exam 2026/2027 - 2026/2027 Official Exam - 2026/2027 | Passing Score: 80% | Page 3 of 27
OBJECTIVE ASSESSMENT - EXAM
Portage Learning BIOD 152 Lab 3 Exam 2026/2027 - 2026/2027
Official Exam
50 100%
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
Lymphatic System Lab Digestive System Lab
Immune System Lab Urinary System Lab
Respiratory System Lab
COVER PAGE - 1
,SECTION 1 | Lymphatic System Lab | Q1-Q10 | Portage Learning BIOD 152 Lab 3 Exam 2026/2027 - 2026/2027
Official Exam 2026/2027
Q1 Question 1 of 50
Q1. A 28-year-old cadaver donor is dissected in the anatomy lab and a student traces a thin-walled
vessel running along the left side of the vertebral column that drains the lower limb, left pelvis, and left
abdomen upward into the venous system. The vessel being identified is:
A. The right lymphatic duct, which drains the right upper quadrant of the body
B. The cisterna chyli, a dilation at the start of the thoracic duct
C. The thoracic duct, the largest lymphatic vessel in the body
D. The cysterna magna, located at the base of the brain
Correct Answer: C
Rationale:
The thoracic duct is the largest lymphatic vessel, ascending along the vertebral column and draining lymph from the lower
limbs, abdomen, left thorax, left upper limb, and left head into the left subclavian vein. The right lymphatic duct drains only
the right upper quadrant, and the cisterna chyli is just the lower dilation that gives rise to the thoracic duct rather than the
full vessel.
Q2 Question 2 of 50
Q2. During a histology lab, a student examines a slide of a lymph node under low power and notes an
outer dark-staining region packed with lymphocytes surrounding a paler inner region. The dark outer
region is correctly identified as:
A. The medulla, which contains medullary cords and sinuses
B. The cortex, which contains lymphoid nodules and germinal centers
C. The hilum, where blood vessels enter and exit the node
D. The capsule, the dense connective tissue covering the node
Correct Answer: B
Rationale:
The cortex is the outer dark-staining region of a lymph node, packed with B-lymphocytes arranged in lymphoid nodules
and germinal centers. The medulla is the paler inner region with medullary cords and sinuses, the hilum is the indentation
where vessels enter and exit, and the capsule is the thin outer connective tissue layer rather than the dark-staining
cellular cortex.
Portage Learning BIOD 152 Lab 3 Exam 2026/2027 - 2026/2027 Official Exam - 2026/2027 | Passing Score: 80% | Page 2 of 27
, Q3 Question 3 of 50
Q3. A laboratory model shows a cluster of small oval lymphoid organs situated along the path of the
lymphatic vessels in the cervical, axillary, and inguinal regions. A student is asked what function these
organs serve, and the best answer is:
A. Production of red blood cells in adult life
B. Filtration of lymph and initiation of immune responses to foreign antigens
C. Storage of bile for fat emulsification
D. Production of digestive enzymes for protein breakdown
Correct Answer: B
Rationale:
Lymph nodes filter lymph as it passes through sinuses lined with macrophages and lymphocytes, trapping pathogens and
initiating adaptive immune responses. Red blood cell production occurs in red bone marrow, bile storage occurs in the
gallbladder, and digestive enzymes are produced by the pancreas and intestinal glands rather than by lymph nodes.
Q4 Question 4 of 50
Q4. While examining a spleen specimen in the histology lab, the instructor asks which cells are
concentrated in the white pulp, and the correct identification is:
A. Splenic macrophages that remove aged red blood cells
B. Lymphocytes arranged around central arteries that monitor blood-borne antigens
C. Venous sinusoids filled with stored blood
D. Megakaryocytes that produce platelets
Correct Answer: B
Rationale:
The white pulp of the spleen is lymphoid tissue organized as periarterial lymphatic sheaths around central arteries,
populated by T- and B-lymphocytes that monitor blood for antigens. Red pulp contains splenic macrophages and venous
sinusoids for red blood cell filtration, and megakaryocytes reside in bone marrow rather than the spleen.
Portage Learning BIOD 152 Lab 3 Exam 2026/2027 - 2026/2027 Official Exam - 2026/2027 | Passing Score: 80% | Page 3 of 27
