BIOL 251: Human Anatomy & Physiology I w/Lab 2026 -
2027 Portage learning
Module 2: Tissues and Skin
Complete Exam Review Questions with Verified Answers |
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Question 1
Which of the following does NOT belong to the respiratory system?
A) Kidneys
B) Larynx
C) Diaphragm
D) Bronchi
E) Lungs
Correct Answer: A) Kidneys
Explanation: The kidneys belong to the urinary system, not the
respiratory system. The respiratory system includes the larynx,
diaphragm, bronchi, and lungs. The kidneys filter blood and produce
urine, while the respiratory system is responsible for gas exchange
(oxygen and carbon dioxide). The diaphragm is a respiratory muscle
that aids in breathing, the larynx is the voice box, the bronchi are air
passageways, and the lungs are the primary organs of respiration.
,Question 2
Match each organ system with its function.
A) Breaks down food and absorbs nutrients → Digestive system
B) Regulates bodily functions via hormones → Endocrine system
C) Supports the body and stores minerals → Skeletal system
D) Produces eggs and supports development of offspring → Female
reproductive system
Correct Answer: C) Supports the body and stores minerals →
Skeletal system
Explanation: The skeletal system provides structural support,
protects organs, and stores minerals such as calcium and
phosphorus. The digestive system breaks down food and absorbs
nutrients. The endocrine system regulates bodily functions via
hormones. The female reproductive system produces eggs and
supports offspring development. Note that "Skeletal muscles" in the
original question was an error—it should be "Skeletal system" since
skeletal muscles are part of the muscular system, not responsible
for mineral storage.
Question 3
Skeletal muscle is found only in the heart and is responsible for
involuntary contractions.
,A) True
B) False
Correct Answer: B) False
Explanation: This statement is completely false. Skeletal muscle is
attached to bones, is under voluntary control, and is found
throughout the body, not in the heart. The heart contains cardiac
muscle, which is involuntary and found only in the heart. Skeletal
muscles are striated and voluntary, while cardiac muscle is striated
and involuntary. Smooth muscle is non-striated and involuntary,
found in organs like the digestive tract and blood vessels.
Question 4
A patient suffers from inflammation of the membrane around the heart.
What is the name of this membrane?
A) Pleura
B) Peritoneum
C) Pericardium
D) Meninges
E) Endocardium
Correct Answer: C) Pericardium
Explanation: The pericardium is the membrane surrounding the
heart. Inflammation of the pericardium is called pericarditis. The
pleura surrounds the lungs, the peritoneum surrounds abdominal
, organs, the meninges surround the brain and spinal cord, and the
endocardium lines the inner surface of the heart. Pericarditis can
cause chest pain and may be caused by infection, trauma, or
autoimmune conditions.
Question 5
Why does faster evaporation of sweat help cool the skin?
A) It decreases blood flow to the skin
B) It lowers the skin's boiling point
C) It dissipates heat in the process
D) It increases the amount of sweat produced
E) It increases the temperature of the skin
Correct Answer: C) It dissipates heat in the process
Explanation: Evaporation of sweat cools the skin by dissipating heat.
When sweat evaporates, it requires heat energy (latent heat of
vaporization) to change from liquid to gas. This heat is drawn from
the skin, effectively cooling the body. Faster evaporation leads to
more rapid heat dissipation, resulting in greater cooling. The other
options are incorrect: sweating does not decrease blood flow, lower
boiling point, increase sweat production directly, or increase skin
temperature.
2027 Portage learning
Module 2: Tissues and Skin
Complete Exam Review Questions with Verified Answers |
LockDown Browser (GUARANTEED PASS)
Question 1
Which of the following does NOT belong to the respiratory system?
A) Kidneys
B) Larynx
C) Diaphragm
D) Bronchi
E) Lungs
Correct Answer: A) Kidneys
Explanation: The kidneys belong to the urinary system, not the
respiratory system. The respiratory system includes the larynx,
diaphragm, bronchi, and lungs. The kidneys filter blood and produce
urine, while the respiratory system is responsible for gas exchange
(oxygen and carbon dioxide). The diaphragm is a respiratory muscle
that aids in breathing, the larynx is the voice box, the bronchi are air
passageways, and the lungs are the primary organs of respiration.
,Question 2
Match each organ system with its function.
A) Breaks down food and absorbs nutrients → Digestive system
B) Regulates bodily functions via hormones → Endocrine system
C) Supports the body and stores minerals → Skeletal system
D) Produces eggs and supports development of offspring → Female
reproductive system
Correct Answer: C) Supports the body and stores minerals →
Skeletal system
Explanation: The skeletal system provides structural support,
protects organs, and stores minerals such as calcium and
phosphorus. The digestive system breaks down food and absorbs
nutrients. The endocrine system regulates bodily functions via
hormones. The female reproductive system produces eggs and
supports offspring development. Note that "Skeletal muscles" in the
original question was an error—it should be "Skeletal system" since
skeletal muscles are part of the muscular system, not responsible
for mineral storage.
Question 3
Skeletal muscle is found only in the heart and is responsible for
involuntary contractions.
,A) True
B) False
Correct Answer: B) False
Explanation: This statement is completely false. Skeletal muscle is
attached to bones, is under voluntary control, and is found
throughout the body, not in the heart. The heart contains cardiac
muscle, which is involuntary and found only in the heart. Skeletal
muscles are striated and voluntary, while cardiac muscle is striated
and involuntary. Smooth muscle is non-striated and involuntary,
found in organs like the digestive tract and blood vessels.
Question 4
A patient suffers from inflammation of the membrane around the heart.
What is the name of this membrane?
A) Pleura
B) Peritoneum
C) Pericardium
D) Meninges
E) Endocardium
Correct Answer: C) Pericardium
Explanation: The pericardium is the membrane surrounding the
heart. Inflammation of the pericardium is called pericarditis. The
pleura surrounds the lungs, the peritoneum surrounds abdominal
, organs, the meninges surround the brain and spinal cord, and the
endocardium lines the inner surface of the heart. Pericarditis can
cause chest pain and may be caused by infection, trauma, or
autoimmune conditions.
Question 5
Why does faster evaporation of sweat help cool the skin?
A) It decreases blood flow to the skin
B) It lowers the skin's boiling point
C) It dissipates heat in the process
D) It increases the amount of sweat produced
E) It increases the temperature of the skin
Correct Answer: C) It dissipates heat in the process
Explanation: Evaporation of sweat cools the skin by dissipating heat.
When sweat evaporates, it requires heat energy (latent heat of
vaporization) to change from liquid to gas. This heat is drawn from
the skin, effectively cooling the body. Faster evaporation leads to
more rapid heat dissipation, resulting in greater cooling. The other
options are incorrect: sweating does not decrease blood flow, lower
boiling point, increase sweat production directly, or increase skin
temperature.
