Essentials of Human Anatomy and Physiology Test Bank | Verified Questions, Answers and Rationales

Essentials of Human Anatomy and Physiology
Test Bank | Verified Questions, Answers and
Rationales
CHAPTER 1: THE HUMAN BODY - AN ORIENTATION
1. What is the study of the structure and shape of the body and its parts called?
• A) Physiology
• B) Anatomy
• C) Pathology
• D) Cytology
Answer: B
Rationale: Anatomy is the study of structure and shape of the body and its parts
and their relationships. Physiology (A) is the study of function. Pathology (C) is the
study of disease. Cytology (D) is the study of cells.


2. Which level of structural organization is composed of two or more tissue
types working together for a common function?
• A) Cellular level
• B) Tissue level
• C) Organ level
• D) Chemical level
Answer: C
Rationale: The organ level consists of two or more tissue types working together.
Cellular level (A) is cells; tissue level (B) is groups of similar cells; chemical level (D)
is atoms and molecules.

,3. The plane that divides the body into equal right and left halves is the:
• A) Parasagittal plane
• B) Frontal plane
• C) Midsagittal (median) plane
• D) Transverse plane
Answer: C
Rationale: The midsagittal plane divides the body into equal right and left halves.
Parasagittal (A) divides into unequal halves; frontal (B) divides anterior/posterior;
transverse (D) divides superior/inferior.


4. The heart lies in the ________ cavity.
• A) Cranial
• B) Pleural
• C) Pericardial
• D) Abdominal
Answer: C
Rationale: The heart is located in the pericardial cavity within the mediastinum of
the thoracic cavity. Cranial (A) contains the brain; pleural (B) contains the lungs;
abdominal (D) contains digestive organs.


5. Which directional term means "toward the midline of the body"?
• A) Lateral
• B) Medial

, • C) Proximal
• D) Distal
Answer: B
Rationale: Medial means toward the body's midline. Lateral (A) means away from
midline. Proximal (C) means closer to point of attachment; distal (D) means farther
from point of attachment.


6. The popliteal region is located on the:
• A) Front of the knee
• B) Back of the knee
• C) Front of the elbow
• D) Back of the elbow
Answer: B
Rationale: The popliteal region is the back of the knee. The front of the knee is
the patellar region; the front of the elbow is the antecubital region; the back of
the elbow is the olecranal region.


7. Which of the following is an example of a positive feedback mechanism?
• A) Regulation of blood glucose
• B) Regulation of body temperature
• C) Blood clotting
• D) Regulation of blood pressure
Answer: C

, Rationale: Blood clotting is positive feedback—the response amplifies the
stimulus. Blood glucose (A), body temperature (B), and blood pressure (D) are all
regulated by negative feedback mechanisms.


8. The abdominopelvic cavity is subdivided into the:
• A) Thoracic and pelvic cavities
• B) Abdominal and pelvic cavities
• C) Cranial and vertebral cavities
• D) Pleural and pericardial cavities
Answer: B
Rationale: The abdominopelvic cavity divides into the abdominal (superior) and
pelvic (inferior) cavities. Thoracic (A) is part of ventral cavity; cranial/vertebral (C)
are dorsal cavities; pleural/pericardial (D) are within thoracic cavity.


9. Which of the following correctly describes the anatomical position?
• A) Body erect, arms crossed, palms facing posteriorly
• B) Body erect, arms at sides, palms facing anteriorly
• C) Body supine, arms at sides, palms facing posteriorly
• D) Body prone, arms at sides, palms facing anteriorly
Answer: B
Rationale: Anatomical position: body erect, feet slightly apart, arms at sides,
palms facing forward (anteriorly). This is the standard reference position.


10. The term "superior" means:
• A) Toward the head or upper part of the body