11TH EDITION TEST BANK BY Elaine
N. Marieb & Katja Hoehn | ALL
CHAPTERS COMPLETE EXAM PREP |
VERIFIED Q&A WITH RATIONALES |
ISBN 9780134580999
HUMAN ANATOMY & PHYSIOLOGY
Marieb & Hoehn | Complete Exam Prep | All Chapters
CHAPTER 1: THE HUMAN BODY — AN ORIENTATION
Q1. Which of the following best defines the term "anatomy"?
A. The study of the functions of body parts
B. The study of the chemical processes within living organisms
C. The study of the structure of body parts and their relationships to one another
D. The study of disease processes in the human body
E. The study of cellular metabolism
Correct Answer: C. The study of the structure of body parts and their
relationships to one another
EXPERT RATIONALE: Anatomy is specifically defined as the study of body structures and
their spatial relationships. Physiology, by contrast, deals with the functions of those
structures.
Q2. Which organ system is primarily responsible for regulating body
temperature, synthesizing vitamin D, and protecting against pathogens?
A. Skeletal system
,B. Muscular system
C. Endocrine system
D. Lymphatic system
E. Integumentary system
Correct Answer: E. Integumentary system
EXPERT RATIONALE: The integumentary system (skin, hair, nails, and glands) forms the
first line of defense, regulates temperature through sweat glands, and synthesizes
vitamin D upon UV exposure.
Q3. The maintenance of a relatively stable internal environment in the body
is called:
A. Metabolism
B. Catabolism
C. Homeostasis
D. Anabolism
E. Osmosis
Correct Answer: C. Homeostasis
EXPERT RATIONALE: Homeostasis refers to the dynamic equilibrium of the internal
environment. The body constantly makes adjustments to variables like temperature, pH,
and blood glucose to maintain this balance.
Q4. In a negative feedback mechanism, the response of the effector:
A. Amplifies the original stimulus
B. Has no effect on the stimulus
C. Reduces or eliminates the original stimulus
,D. Activates additional control centers
E. Permanently changes the set point
Correct Answer: C. Reduces or eliminates the original stimulus
EXPERT RATIONALE: Negative feedback loops counteract changes to restore the body to
its set point. For example, when body temperature rises, sweating cools the body back
down, reducing the initial stimulus.
Q5. Which directional term means "toward the back of the body"?
A. Anterior
B. Inferior
C. Medial
D. Posterior
E. Lateral
Correct Answer: D. Posterior
EXPERT RATIONALE: Posterior (dorsal) refers to the back surface of the body. Anterior
(ventral) refers to the front. These terms describe relative positions in standard
anatomical position.
Q6. A patient has a stab wound to the left side of the abdomen, just lateral to
the umbilicus. Which abdominal region is most likely affected?
A. Epigastric
B. Right iliac
C. Left lumbar
D. Hypogastric
E. Left iliac
, Correct Answer: C. Left lumbar
EXPERT RATIONALE: The nine-region system divides the abdomen into three columns
and three rows. The left lumbar region lies lateral to the umbilical region on the left side,
just lateral to the midline.
Q7. Which of the following is the correct order of structural organization from
simplest to most complex?
A. Tissue → Cell → Organ → Organ System → Organism
B. Cell → Tissue → Organ → Organ System → Organism
C. Atom → Molecule → Cell → Tissue → Organ → Organ System → Organism
D. Molecule → Atom → Cell → Organ → Tissue
E. Organ → Tissue → Cell → Molecule → Atom
Correct Answer: C. Atom → Molecule → Cell → Tissue → Organ → Organ
System → Organism
EXPERT RATIONALE: The hierarchy of structural organization begins at the chemical
(atomic/molecular) level, progresses through cellular, tissue, organ, and organ system
levels, ultimately forming the organism.
Q8. The dorsal body cavity contains which of the following?
A. Heart and lungs
B. Stomach and intestines
C. Brain and spinal cord
D. Liver and gallbladder
E. Kidneys and bladder
Correct Answer: C. Brain and spinal cord