High-Yield Practice Questions &
Rationales — 2025/2026 Exam-Ready
Edition — A+ Graded • 100% Verified •
Complete Explanations for Every
Answer — Covering Introduction to
Anatomy & Physiology; Anatomical
Terminology & Body Cavities;
Homeostasis & Feedback Mechanisms;
Basic Chemistry; Cell Structure &
Function; Tissues; Integumentary
System & Bone Tissue; Chemistry of
Life; Cell Biology & Transport; Cell
Cycle, Mitosis, Protein Synthesis;
Tissues; Integumentary System; and
Skeletal System & Joints | Instant
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SECTION 1: Introduction to Anatomy & Physiology (Questions
1–15)
1. The study of the structure of body parts and their relationships to one
another is called:
,A) Physiology
B) Anatomy
C) Histology
D) Cytology
Answer: B
Anatomy is the study of structure, while physiology is the study of function. Histology is
the study of tissues, and cytology is the study of cells.
2. The study of the function of the human body is called:
A) Anatomy
B) Physiology
C) Embryology
D) Pathology
Answer: B
Physiology is the scientific study of how the body and its parts function. Anatomy
focuses on structure, not function.
3. Which of the following is NOT one of the six functions that characterize all
living things?
A) Organization
B) Responsiveness
C) Metabolism
D) Photosynthesis
Answer: D
The six functions of living things are organization, responsiveness, growth,
reproduction, movement, and metabolism/excretion. Photosynthesis is a process
specific to plants and some bacteria, not a general characteristic of all living things.
4. The maintenance of a relatively stable internal environment despite changes
in external conditions is called:
A) Metabolism
B) Homeostasis
C) Responsiveness
D) Adaptation
,Answer: B
Homeostasis is the body's ability to maintain a stable internal environment. It is
fundamental to survival and is a central theme in physiology.
5. A negative feedback mechanism:
A) Amplifies the original stimulus
B) Has no effect on the stimulus
C) Reverses the direction of the stimulus to restore homeostasis
D) Always causes disease
Answer: C
Negative feedback mechanisms work to reverse a change and bring the body back to
its set point. Examples include body temperature regulation and blood glucose control.
6. Which of the following is an example of a positive feedback mechanism?
A) Regulation of body temperature
B) Blood clotting
C) Regulation of blood glucose by insulin
D) Regulation of blood pressure
Answer: B
Positive feedback enhances the original stimulus. Blood clotting is a classic example,
where the formation of a clot accelerates further clotting until the vessel is sealed.
Labor contractions are another example.
7. The correct order of structural organization from simplest to most complex
is:
A) Chemical → Cellular → Tissue → Organ → System → Organism
B) Cellular → Chemical → Tissue → Organ → System → Organism
C) Tissue → Cellular → Chemical → Organ → System → Organism
D) Chemical → Tissue → Cellular → Organ → System → Organism
Answer: A
The levels of organization from simplest to most complex are: chemical, cellular, tissue,
organ, system, and organism.
, 8. The simplest level of structural organization is the:
A) Tissue level
B) Organ level
C) Cellular level
D) Chemical level
Answer: D
The chemical level is the most basic, consisting of atoms and molecules that form the
building blocks of all living structures.
9. Which of the following specialties might focus on studying all of the
structures of the ankle and foot?
A) Systemic anatomy
B) Regional anatomy
C) Surface anatomy
D) Developmental anatomy
Answer: B
Regional anatomy focuses on the study of all structures in a specific body region.
Systemic anatomy studies one system at a time throughout the body.
10. Gross anatomy refers to the study of:
A) Structures that can be seen with the naked eye
B) Structures that can only be seen with a microscope
C) The function of body parts
D) The development of an organism
Answer: A
Gross (macroscopic) anatomy studies structures visible to the naked eye. Microscopic
anatomy studies structures too small to be seen without a microscope.
11. Which of the following is NOT a subdivision of gross anatomy?
A) Regional anatomy
B) Systemic anatomy
C) Surface anatomy
D) Cytology
Answer: D