Anatomy, Physiology, and Disease Test Bank –
Verified Questions and Correct Answers with
Rationales | Medical Terminology & Body
Systems | Updated 2025/2026 A+ Study Guide
Question 1:
Which structure in the brain is primarily responsible for
&*^^*%%
regulating homeostasis? &$&^%&*
%^%&^$
(A) Cerebellum &*^%^&
(B) Medulla oblongata %^%%
(C) Hypothalamus
(D) Thalamus
Correct Answer: (C) Hypothalamus
EXPLANATION: The hypothalamus plays a crucial role in
maintaining homeostasis by regulating body temperature,
hunger, thirst, and circadian rhythms.
Question 2:
What is the primary mechanism by which oxygen is
transported in the bloodstream?
(A) Dissolved in plasma
(B) Bound to platelets
(C) Bound to hemoglobin
(D) As bicarbonate ions
Correct Answer: (C) Bound to hemoglobin
EXPLANATION: The majority of oxygen is transported in
the blood bound to hemoglobin in red blood cells, allowing
efficient oxygen delivery to tissues.
Question 3:
Which type of connective tissue stores fat in the body?
(A) Cartilage
(B) Bone
(C) Adipose tissue
,Anatomy, Physiology, and Disease Test Bank –
Verified Questions and Correct Answers with
Rationales | Medical Terminology & Body
Systems | Updated 2025/2026 A+ Study Guide
(D) Blood
Correct Answer: (C) Adipose tissue
&*^^*%%
EXPLANATION: Adipose tissue is specialized connective &$&^%&*
%^%&^$
tissue that stores energy in the form of fat and helps &*^%^&
insulate the body. %^%%
Question 4:
What is the primary function of the loop of Henle in the
nephron?
(A) Filtration of blood
(B) Reabsorption of glucose
(C) Concentration of urine
(D) Secretion of hormones
Correct Answer: (C) Concentration of urine
EXPLANATION: The loop of Henle plays a vital role in the
concentration of urine by creating a concentration
gradient in the renal medulla, allowing for water
reabsorption.
Question 5:
Which hormone is primarily responsible for regulating
blood calcium levels?
(A) Insulin
(B) Glucagon
(C) Parathyroid hormone
(D) Calcitonin
Correct Answer: (C) Parathyroid hormone
EXPLANATION: Parathyroid hormone increases blood
calcium levels by promoting the release of calcium from
,Anatomy, Physiology, and Disease Test Bank –
Verified Questions and Correct Answers with
Rationales | Medical Terminology & Body
Systems | Updated 2025/2026 A+ Study Guide
bones, reabsorption in the kidneys, and absorption in the
intestines.
&*^^*%%
Question 6: &$&^%&*
%^%&^$
What is the main function of the small intestine? &*^%^&
%^%%
(A) Water absorption
(B) Protein synthesis
(C) Nutrient absorption
(D) Waste elimination
Correct Answer: (C) Nutrient absorption
EXPLANATION: The small intestine is primarily responsible
for the digestion and absorption of nutrients, including
carbohydrates, proteins, and fats.
Question 7:
Which type of blood vessel carries oxygenated blood away
from the heart?
(A) Veins
(B) Capillaries
(C) Arteries
(D) Venules
Correct Answer: (C) Arteries
EXPLANATION: Arteries transport oxygenated blood from
the heart to the tissues, except for the pulmonary arteries,
which carry deoxygenated blood to the lungs.
, Anatomy, Physiology, and Disease Test Bank –
Verified Questions and Correct Answers with
Rationales | Medical Terminology & Body
Systems | Updated 2025/2026 A+ Study Guide
Question 8:
What is the primary function of the kidney?
&*^^*%%
(A) Hormone production &$&^%&*
%^%&^$
(B) Blood clotting &*^%^&
(C) Filtration of blood %^%%
(D) Digestion
Correct Answer: (C) Filtration of blood
EXPLANATION: The kidneys filter waste products and
excess substances from the blood, maintaining fluid and
electrolyte balance.
Question 9:
Which of the following structures is involved in gas
exchange?
(A) Arteries
(B) Veins
(C) Alveoli
(D) Capillaries
Correct Answer: (C) Alveoli
EXPLANATION: Alveoli are tiny air sacs in the lungs where
oxygen and carbon dioxide are exchanged between the air
and blood.
Question 10:
What is the primary role of the immune system?
(A) Nutrient absorption
Verified Questions and Correct Answers with
Rationales | Medical Terminology & Body
Systems | Updated 2025/2026 A+ Study Guide
Question 1:
Which structure in the brain is primarily responsible for
&*^^*%%
regulating homeostasis? &$&^%&*
%^%&^$
(A) Cerebellum &*^%^&
(B) Medulla oblongata %^%%
(C) Hypothalamus
(D) Thalamus
Correct Answer: (C) Hypothalamus
EXPLANATION: The hypothalamus plays a crucial role in
maintaining homeostasis by regulating body temperature,
hunger, thirst, and circadian rhythms.
Question 2:
What is the primary mechanism by which oxygen is
transported in the bloodstream?
(A) Dissolved in plasma
(B) Bound to platelets
(C) Bound to hemoglobin
(D) As bicarbonate ions
Correct Answer: (C) Bound to hemoglobin
EXPLANATION: The majority of oxygen is transported in
the blood bound to hemoglobin in red blood cells, allowing
efficient oxygen delivery to tissues.
Question 3:
Which type of connective tissue stores fat in the body?
(A) Cartilage
(B) Bone
(C) Adipose tissue
,Anatomy, Physiology, and Disease Test Bank –
Verified Questions and Correct Answers with
Rationales | Medical Terminology & Body
Systems | Updated 2025/2026 A+ Study Guide
(D) Blood
Correct Answer: (C) Adipose tissue
&*^^*%%
EXPLANATION: Adipose tissue is specialized connective &$&^%&*
%^%&^$
tissue that stores energy in the form of fat and helps &*^%^&
insulate the body. %^%%
Question 4:
What is the primary function of the loop of Henle in the
nephron?
(A) Filtration of blood
(B) Reabsorption of glucose
(C) Concentration of urine
(D) Secretion of hormones
Correct Answer: (C) Concentration of urine
EXPLANATION: The loop of Henle plays a vital role in the
concentration of urine by creating a concentration
gradient in the renal medulla, allowing for water
reabsorption.
Question 5:
Which hormone is primarily responsible for regulating
blood calcium levels?
(A) Insulin
(B) Glucagon
(C) Parathyroid hormone
(D) Calcitonin
Correct Answer: (C) Parathyroid hormone
EXPLANATION: Parathyroid hormone increases blood
calcium levels by promoting the release of calcium from
,Anatomy, Physiology, and Disease Test Bank –
Verified Questions and Correct Answers with
Rationales | Medical Terminology & Body
Systems | Updated 2025/2026 A+ Study Guide
bones, reabsorption in the kidneys, and absorption in the
intestines.
&*^^*%%
Question 6: &$&^%&*
%^%&^$
What is the main function of the small intestine? &*^%^&
%^%%
(A) Water absorption
(B) Protein synthesis
(C) Nutrient absorption
(D) Waste elimination
Correct Answer: (C) Nutrient absorption
EXPLANATION: The small intestine is primarily responsible
for the digestion and absorption of nutrients, including
carbohydrates, proteins, and fats.
Question 7:
Which type of blood vessel carries oxygenated blood away
from the heart?
(A) Veins
(B) Capillaries
(C) Arteries
(D) Venules
Correct Answer: (C) Arteries
EXPLANATION: Arteries transport oxygenated blood from
the heart to the tissues, except for the pulmonary arteries,
which carry deoxygenated blood to the lungs.
, Anatomy, Physiology, and Disease Test Bank –
Verified Questions and Correct Answers with
Rationales | Medical Terminology & Body
Systems | Updated 2025/2026 A+ Study Guide
Question 8:
What is the primary function of the kidney?
&*^^*%%
(A) Hormone production &$&^%&*
%^%&^$
(B) Blood clotting &*^%^&
(C) Filtration of blood %^%%
(D) Digestion
Correct Answer: (C) Filtration of blood
EXPLANATION: The kidneys filter waste products and
excess substances from the blood, maintaining fluid and
electrolyte balance.
Question 9:
Which of the following structures is involved in gas
exchange?
(A) Arteries
(B) Veins
(C) Alveoli
(D) Capillaries
Correct Answer: (C) Alveoli
EXPLANATION: Alveoli are tiny air sacs in the lungs where
oxygen and carbon dioxide are exchanged between the air
and blood.
Question 10:
What is the primary role of the immune system?
(A) Nutrient absorption
