Human Anatomy & Physiology I with Lab
Verified Questions with Answers & Detailed Clinical Rationales
Updated 2026 | A+ Pass Guaranteed
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EXAM OVERVIEW
| Feature | Details |
|---------|---------|
| Exam | BIOL 251 Module 7 – Human Anatomy & Physiology I with Lab |
| Course Provider | Portage Learning / American Military University |
| Format | Multiple Choice, Clinical Scenarios, Lab Applications |
| Total Questions | 300 Practice Questions |
| Content Areas | Peripheral Nervous System, Autonomic Nervous System, Special Senses
(Eye/Ear Anatomy), Integumentary System, Skeletal System, Muscular System,
Neuromuscular Junction, Homeostasis & Feedback Mechanisms, Sensory Physiology, Lab
Applications |
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TABLE OF CONTENTS
,| Section | Topic | Questions |
|---------|-------|-----------|
| 1 | Integumentary System | 1-30 |
| 2 | Skeletal System: Structure & Function | 31-60 |
| 3 | Joints & Articulations | 61-80 |
| 4 | Muscle Tissue & Physiology | 81-110 |
| 5 | Muscular System: Major Muscles & Actions | 111-135 |
| 6 | Neuromuscular Junction & Muscle Contraction | 136-160 |
| 7 | Peripheral Nervous System (PNS) | 161-190 |
| 8 | Autonomic Nervous System (ANS) | 191-215 |
| 9 | Special Senses: Eye & Ear Anatomy | 216-245 |
| 10 | Sensory Physiology & Lab Applications | 246-270 |
| 11 | Homeostasis & Feedback Mechanisms | 271-300 |
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SECTION 1: INTEGUMENTARY SYSTEM
Questions 1-30
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Question 1
The integumentary system includes which of the following structures?
,A) Skin, heart, and lungs
B) Skin, hair, and nails
C) Skin, bones, and muscles
D) Skin, liver, and kidneys
Answer: B
Rationale: The integumentary system consists of the skin and its accessory structures,
including hair, nails, sweat glands, oil glands, and sensory receptors. It does not include
internal organs such as the heart, lungs, liver, or kidneys.
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Question 2
What is the largest organ in the human body?
A) Liver
B) Brain
C) Skin
D) Heart
Answer: C
Rationale: The skin is the largest organ of the human body, covering approximately 1.5-2
square meters in adults and accounting for about 16% of total body weight.
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, Question 3
Which of the following is NOT a primary function of the integumentary system?
A) Protection against pathogens
B) Sensation of environmental stimuli
C) Production of red blood cells
D) Thermoregulation
Answer: C
Rationale: The integumentary system functions include protection, sensation, and
thermoregulation. Red blood cell production (hematopoiesis) occurs primarily in the bone
marrow, not the integumentary system.
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Question 4
Which cells produce melanin?
A) Keratinocytes
B) Fibroblasts
C) Melanocytes
D) Langerhans cells
Answer: C