BIOL 251 Human Anatomy & Physiology I w/Lab
Module 1 Exam Review | Latest Update 2026/2027 |
200 Practice Questions & Detailed Answers | LockDown
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1. What is the definition of anatomy?
A) The study of the functions of body parts
B) The study of chemical processes in the body
C) The study of the structure of body parts and their relationships to one another
D) The study of disease and its causes
Answer: C
Explanation: Anatomy is derived from the Greek word meaning "to cut apart." It focuses on the
structure and physical relationships of body parts, not their functions.
2. What is the definition of physiology?
A) The study of body structures visible to the naked eye
B) The study of the functions of the body and its parts
C) The study of tissues under a microscope
D) The study of the chemical composition of cells
Answer: B
,Explanation: Physiology focuses on how the body and its components work and carry out their
lifesustaining activities. Anatomy provides the structure; physiology provides the function.
3. Which principle states that structure determines function?
A) Homeostatic regulation
B) Complementarity of structure and function
C) Physiological balance
D) Anatomical hierarchy
Answer: B
Explanation: The principle of complementarity states that the function of a body part is always related
to its structure—for example, bones are hard because they support and protect.
4. What is the correct order of structural organization from simplest to most complex?
A) Chemical, cellular, tissue, organ, organ system, organismal
B) Cellular, chemical, tissue, organ, organ system, organismal
C) Chemical, tissue, cellular, organ, organ system, organismal
D) Tissue, cellular, chemical, organ, organ system, organismal
Answer: A
,Explanation: The correct order is: chemical (atoms/molecules) → cellular (cells) → tissue (groups of cells)
→ organ (tissues working together) → organ system (organs working together) → organismal (the whole
body).
5. What is the most basic living unit of the human body?
A) Tissue
B) Organ
C) Atom
D) Cell
Answer: D
Explanation: The cell is the smallest living unit. While atoms and molecules are smaller, they are not
considered living. Cells are the basic structural and functional units of life.
6. Which organ system is responsible for exchanging gases with the environment?
A) Cardiovascular system
B) Digestive system
C) Respiratory system
D) Urinary system
Answer: C
, Explanation: The respiratory system—consisting of the lungs and airways—is responsible for oxygen
intake and carbon dioxide removal.
7. Which organ system regulates body functions through hormones?
A) Nervous system
B) Lymphatic system
C) Endocrine system
D) Muscular system
Answer: C
Explanation: The endocrine system uses chemical messengers called hormones to regulate body
processes such as growth, metabolism, and reproduction.
8. What is the primary focus of microscopic anatomy?
A) Investigating the functions of organ systems
B) Analyzing structures using a microscope
C) Examining the effects of diseases on organ systems
D) Studying the exterior features of the body
Answer: B
Explanation: Microscopic anatomy focuses on examining cells, tissues, and small structures that cannot
be seen with the naked eye, often using light or electron microscopy.
Module 1 Exam Review | Latest Update 2026/2027 |
200 Practice Questions & Detailed Answers | LockDown
Browser | Portage Learning | A+ Graded
1. What is the definition of anatomy?
A) The study of the functions of body parts
B) The study of chemical processes in the body
C) The study of the structure of body parts and their relationships to one another
D) The study of disease and its causes
Answer: C
Explanation: Anatomy is derived from the Greek word meaning "to cut apart." It focuses on the
structure and physical relationships of body parts, not their functions.
2. What is the definition of physiology?
A) The study of body structures visible to the naked eye
B) The study of the functions of the body and its parts
C) The study of tissues under a microscope
D) The study of the chemical composition of cells
Answer: B
,Explanation: Physiology focuses on how the body and its components work and carry out their
lifesustaining activities. Anatomy provides the structure; physiology provides the function.
3. Which principle states that structure determines function?
A) Homeostatic regulation
B) Complementarity of structure and function
C) Physiological balance
D) Anatomical hierarchy
Answer: B
Explanation: The principle of complementarity states that the function of a body part is always related
to its structure—for example, bones are hard because they support and protect.
4. What is the correct order of structural organization from simplest to most complex?
A) Chemical, cellular, tissue, organ, organ system, organismal
B) Cellular, chemical, tissue, organ, organ system, organismal
C) Chemical, tissue, cellular, organ, organ system, organismal
D) Tissue, cellular, chemical, organ, organ system, organismal
Answer: A
,Explanation: The correct order is: chemical (atoms/molecules) → cellular (cells) → tissue (groups of cells)
→ organ (tissues working together) → organ system (organs working together) → organismal (the whole
body).
5. What is the most basic living unit of the human body?
A) Tissue
B) Organ
C) Atom
D) Cell
Answer: D
Explanation: The cell is the smallest living unit. While atoms and molecules are smaller, they are not
considered living. Cells are the basic structural and functional units of life.
6. Which organ system is responsible for exchanging gases with the environment?
A) Cardiovascular system
B) Digestive system
C) Respiratory system
D) Urinary system
Answer: C
, Explanation: The respiratory system—consisting of the lungs and airways—is responsible for oxygen
intake and carbon dioxide removal.
7. Which organ system regulates body functions through hormones?
A) Nervous system
B) Lymphatic system
C) Endocrine system
D) Muscular system
Answer: C
Explanation: The endocrine system uses chemical messengers called hormones to regulate body
processes such as growth, metabolism, and reproduction.
8. What is the primary focus of microscopic anatomy?
A) Investigating the functions of organ systems
B) Analyzing structures using a microscope
C) Examining the effects of diseases on organ systems
D) Studying the exterior features of the body
Answer: B
Explanation: Microscopic anatomy focuses on examining cells, tissues, and small structures that cannot
be seen with the naked eye, often using light or electron microscopy.
