BIOL 251 MODULE 2 EXAM REVIEW | HUMAN ANATOMY
& PHYSIOLOGY I WITH LAB | QUESTIONS WITH
CORRECT ANSWERS | PORTAGE LEARNING 2026
147 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
BIOL 251 MODULE 2 EXAM REVIEW | HUMAN ANATOMY & PHYSIOLOGY I WITH LAB | QUESTIONS WITH
CORRECT ANSWERS | PORTAGE LEARNING 2026. It contains 147 carefully selected questions that reflect the
most current exam content and testing strategies. Each question is accompanied by a correct answer and a
detailed rationale that explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 147 Questions
Foundations - Application - BIOL 251 Module 2 Review Human Anatomy & Physiology I WITH LAB WITH
Correct Portage Learning 2026 Human Anatomy & Physiology I WITH LAB BIOL 251 Undergraduate YEAR 2
Pre-health Sciences
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Tissues Epithelial Connective 1-25 Directly, Blood, Calcium, Describes, Tissue
Muscle AND Nervous Tissue
Integumentary System SKIN 26-50 Tissue, Cells, Directly, Epithelial, Layer
Structure Accessory
Structures AND Functions
BONE Tissue AND Skeletal 51-75 Tissue, Cells, Epithelium, Muscle, Connective
System Structure Growth
AND Remodeling
Axial Skeleton Skull Vertebral 76-100 Tissue, Muscle, Directly, Membrane, Epithelial
Column AND Thoracic CAGE
Appendicular Skeleton 101-125 Muscle, Correctly, Directly, Describes, Tissue
Pectoral AND Pelvic Girdles
Upper AND Lower Limbs
Joints Classification 126-147 Tissue, Muscle, Contraction, Cells, Membrane
Structure AND Movement
TOTAL 147 All questions include answers and detailed rationales
,Section A - Tissues Epithelial Connective Muscle AND
Nervous Tissue
Q1.
A biopsy of an organ capsule reveals a tissue with parallel collagen fibers, sparse
fibroblasts, and high tensile strength in one direction. Which tissue type is this?
A. Dense regular connective tissue B. Dense irregular connective tissue
C. Reticular connective tissue D. Elastic connective tissue
Correct: A - Dense regular connective tissue
Rationale:Dense regular connective tissue has collagen fibers aligned in parallel, providing
tensile strength along one axis, as in tendons and ligaments. Dense irregular tissue has fibers
in multiple directions; reticular tissue forms supportive networks; elastic tissue contains elastic
fibers for stretch.
Why the other answers are wrong:
B. Dense irregular tissue has collagen in multiple planes, not parallel, and is found in joint
capsules and dermis.
C. Reticular tissue consists of reticular fibers forming a meshwork in lymphoid organs, not
parallel bundles.
D. Elastic tissue contains abundant elastic fibers allowing stretch and recoil, not high tensile
strength in one direction.
Reference: Marieb, E.N. & Hoehn, K. (2023). Human Anatomy & Physiology, 12th Ed., Ch. 4
Q2.
Which epidermal layer is mitotically active and contains the highest concentration of stem
cells for keratinocyte renewal?
A. Stratum corneum B. Stratum granulosum
C. Stratum basale D. Stratum lucidum
Correct: C - Stratum basale
Rationale:The stratum basale is a single layer of mitotically active cells attached to the
basement membrane and contains stem cells that replenish the epidermis. The other layers
are more differentiated and lack significant proliferative capacity.
Why the other answers are wrong:
A. Stratum corneum consists of dead, keratinized cells that are continuously shed.
B. Stratum granulosum contains cells undergoing keratinization and apoptosis, not active
division.
D. Stratum lucidum is a translucent layer of dead cells present only in thick skin.
Page 3
, Section A - Tissues Epithelial Connective Muscle AND Nervous Tissue
Reference: Tortora, G.J. & Derrickson, B. (2024). Principles of Anatomy and Physiology, 16th Ed., Ch. 5
Q3.
In endochondral ossification, which region of the epiphyseal plate contains chondrocytes
that are rapidly dividing and aligning in columns?
A. Zone of resting cartilage B. Zone of proliferating cartilage
C. Zone of hypertrophic cartilage D. Zone of calcified cartilage
Correct: B - Zone of proliferating cartilage
Rationale:The zone of proliferating cartilage is where chondrocytes divide rapidly and form
columns, contributing to interstitial growth of the epiphyseal plate. The other zones represent
stages before or after this active division.
Why the other answers are wrong:
A. The zone of resting cartilage contains slowly dividing chondrocytes that anchor the plate to
the epiphysis.
C. The zone of hypertrophic cartilage contains enlarged chondrocytes that are no longer
dividing.
D. The zone of calcified cartilage contains dead chondrocytes and calcified matrix, not dividing
cells.
Reference: Saladin, K.S. (2024). Anatomy & Physiology: The Unity of Form and Function, 10th Ed., Ch.
6
Q4.
Which hormone directly increases blood calcium by stimulating osteoclast activity and
renal calcium reabsorption while inhibiting phosphate reabsorption?
A. Calcitonin B. Parathyroid hormone (PTH)
C. Calcitriol D. Insulin-like growth factor 1 (IGF-1)
Correct: B - Parathyroid hormone (PTH)
Rationale:PTH raises blood calcium by stimulating osteoclasts, increasing renal calcium
reabsorption, and promoting calcitriol synthesis; it also inhibits phosphate reabsorption to
prevent calcium-phosphate precipitation. Calcitonin lowers blood calcium; calcitriol primarily
increases intestinal absorption; IGF-1 promotes bone growth.
Why the other answers are wrong:
A. Calcitonin decreases blood calcium by inhibiting osteoclasts and stimulating renal calcium
excretion.
C. Calcitriol increases intestinal calcium absorption but does not directly inhibit phosphate
reabsorption in the kidney.
D. IGF-1 stimulates bone growth and protein synthesis but is not the primary regulator of acute
Page 4
& PHYSIOLOGY I WITH LAB | QUESTIONS WITH
CORRECT ANSWERS | PORTAGE LEARNING 2026
147 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
BIOL 251 MODULE 2 EXAM REVIEW | HUMAN ANATOMY & PHYSIOLOGY I WITH LAB | QUESTIONS WITH
CORRECT ANSWERS | PORTAGE LEARNING 2026. It contains 147 carefully selected questions that reflect the
most current exam content and testing strategies. Each question is accompanied by a correct answer and a
detailed rationale that explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 147 Questions
Foundations - Application - BIOL 251 Module 2 Review Human Anatomy & Physiology I WITH LAB WITH
Correct Portage Learning 2026 Human Anatomy & Physiology I WITH LAB BIOL 251 Undergraduate YEAR 2
Pre-health Sciences
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Tissues Epithelial Connective 1-25 Directly, Blood, Calcium, Describes, Tissue
Muscle AND Nervous Tissue
Integumentary System SKIN 26-50 Tissue, Cells, Directly, Epithelial, Layer
Structure Accessory
Structures AND Functions
BONE Tissue AND Skeletal 51-75 Tissue, Cells, Epithelium, Muscle, Connective
System Structure Growth
AND Remodeling
Axial Skeleton Skull Vertebral 76-100 Tissue, Muscle, Directly, Membrane, Epithelial
Column AND Thoracic CAGE
Appendicular Skeleton 101-125 Muscle, Correctly, Directly, Describes, Tissue
Pectoral AND Pelvic Girdles
Upper AND Lower Limbs
Joints Classification 126-147 Tissue, Muscle, Contraction, Cells, Membrane
Structure AND Movement
TOTAL 147 All questions include answers and detailed rationales
,Section A - Tissues Epithelial Connective Muscle AND
Nervous Tissue
Q1.
A biopsy of an organ capsule reveals a tissue with parallel collagen fibers, sparse
fibroblasts, and high tensile strength in one direction. Which tissue type is this?
A. Dense regular connective tissue B. Dense irregular connective tissue
C. Reticular connective tissue D. Elastic connective tissue
Correct: A - Dense regular connective tissue
Rationale:Dense regular connective tissue has collagen fibers aligned in parallel, providing
tensile strength along one axis, as in tendons and ligaments. Dense irregular tissue has fibers
in multiple directions; reticular tissue forms supportive networks; elastic tissue contains elastic
fibers for stretch.
Why the other answers are wrong:
B. Dense irregular tissue has collagen in multiple planes, not parallel, and is found in joint
capsules and dermis.
C. Reticular tissue consists of reticular fibers forming a meshwork in lymphoid organs, not
parallel bundles.
D. Elastic tissue contains abundant elastic fibers allowing stretch and recoil, not high tensile
strength in one direction.
Reference: Marieb, E.N. & Hoehn, K. (2023). Human Anatomy & Physiology, 12th Ed., Ch. 4
Q2.
Which epidermal layer is mitotically active and contains the highest concentration of stem
cells for keratinocyte renewal?
A. Stratum corneum B. Stratum granulosum
C. Stratum basale D. Stratum lucidum
Correct: C - Stratum basale
Rationale:The stratum basale is a single layer of mitotically active cells attached to the
basement membrane and contains stem cells that replenish the epidermis. The other layers
are more differentiated and lack significant proliferative capacity.
Why the other answers are wrong:
A. Stratum corneum consists of dead, keratinized cells that are continuously shed.
B. Stratum granulosum contains cells undergoing keratinization and apoptosis, not active
division.
D. Stratum lucidum is a translucent layer of dead cells present only in thick skin.
Page 3
, Section A - Tissues Epithelial Connective Muscle AND Nervous Tissue
Reference: Tortora, G.J. & Derrickson, B. (2024). Principles of Anatomy and Physiology, 16th Ed., Ch. 5
Q3.
In endochondral ossification, which region of the epiphyseal plate contains chondrocytes
that are rapidly dividing and aligning in columns?
A. Zone of resting cartilage B. Zone of proliferating cartilage
C. Zone of hypertrophic cartilage D. Zone of calcified cartilage
Correct: B - Zone of proliferating cartilage
Rationale:The zone of proliferating cartilage is where chondrocytes divide rapidly and form
columns, contributing to interstitial growth of the epiphyseal plate. The other zones represent
stages before or after this active division.
Why the other answers are wrong:
A. The zone of resting cartilage contains slowly dividing chondrocytes that anchor the plate to
the epiphysis.
C. The zone of hypertrophic cartilage contains enlarged chondrocytes that are no longer
dividing.
D. The zone of calcified cartilage contains dead chondrocytes and calcified matrix, not dividing
cells.
Reference: Saladin, K.S. (2024). Anatomy & Physiology: The Unity of Form and Function, 10th Ed., Ch.
6
Q4.
Which hormone directly increases blood calcium by stimulating osteoclast activity and
renal calcium reabsorption while inhibiting phosphate reabsorption?
A. Calcitonin B. Parathyroid hormone (PTH)
C. Calcitriol D. Insulin-like growth factor 1 (IGF-1)
Correct: B - Parathyroid hormone (PTH)
Rationale:PTH raises blood calcium by stimulating osteoclasts, increasing renal calcium
reabsorption, and promoting calcitriol synthesis; it also inhibits phosphate reabsorption to
prevent calcium-phosphate precipitation. Calcitonin lowers blood calcium; calcitriol primarily
increases intestinal absorption; IGF-1 promotes bone growth.
Why the other answers are wrong:
A. Calcitonin decreases blood calcium by inhibiting osteoclasts and stimulating renal calcium
excretion.
C. Calcitriol increases intestinal calcium absorption but does not directly inhibit phosphate
reabsorption in the kidney.
D. IGF-1 stimulates bone growth and protein synthesis but is not the primary regulator of acute
Page 4
