Comprehensive Practice Questions
A Complete Review of the Human Body
SECTION 1: INTRODUCTION TO ANATOMY AND PHYSIOLOGY
(Questions 1-25)
1. Which level of structural organization is the most complex?
A. Cellular
B. Tissue
C. Organ
D. Organ system
Answer: D
Rationale: The organ system level is the most complex because it consists of multiple
organs working together to perform a common function. The levels of organization from
simplest to most complex are: chemical, cellular, tissue, organ, organ system, and
organism .
,2. The study of the structure and shape of the body and its parts is called:
A. Physiology
B. Anatomy
C. Histology
D. Pathology
Answer: B
Rationale: Anatomy is the study of the structure and shape of the body and its parts.
Physiology is the study of how the body and its parts function. Histology is the study of
tissues, and pathology is the study of disease .
3. The body's ability to maintain stable internal conditions is known as:
A. Metabolism
B. Homeostasis
C. Negative feedback
D. Positive feedback
Answer: B
Rationale: Homeostasis is the maintenance of relatively stable internal conditions despite
continuous changes in the external environment. It is essential for the survival of the
organism .
4. In anatomical position, the palms face:
A. Posterior
B. Anterior (forward)
C. Medial
D. Lateral
Answer: B
,Rationale: In anatomical position, the body is standing erect, feet slightly apart, arms
hanging at the sides, and palms facing forward (anterior). The thumbs point away from
the body .
5. The plane that divides the body into superior and inferior parts is the:
A. Sagittal plane
B. Frontal plane
C. Transverse plane
D. Midsagittal plane
Answer: C
Rationale: The transverse plane (horizontal plane) divides the body into superior (upper)
and inferior (lower) parts. The sagittal plane divides into left and right, and the frontal
plane divides into anterior and posterior .
6. Which body cavity contains the heart and lungs?
A. Cranial cavity
B. Thoracic cavity
C. Abdominal cavity
D. Pelvic cavity
Answer: B
Rationale: The thoracic cavity contains the heart (in the pericardial cavity) and lungs (in
the pleural cavities). It is separated from the abdominal cavity by the diaphragm .
7. The region of the body that includes the head, neck, and trunk is the:
, A. Axial region
B. Appendicular region
C. Dorsal region
D. Ventral region
Answer: A
Rationale: The axial region includes the head, neck, and trunk (the central axis of the
body). The appendicular region includes the upper and lower limbs (appendages) .
8. Negative feedback mechanisms:
A. Amplify changes
B. Oppose changes to maintain stability
C. Are rare in biological systems
D. Always result in disease
Answer: B
Rationale: Negative feedback mechanisms oppose changes to maintain stability and are
the most common homeostatic control mechanisms. Positive feedback mechanisms
amplify changes .
9. The term "superior" means:
A. Toward the head or upper part
B. Toward the feet
C. Toward the front
D. Toward the back
Answer: A
Rationale: Superior means toward the head or upper part of the structure. Inferior means
toward the feet or lower part .