1. Which of the following is the main function of the kidneys?
A) Production of bile
B) Filtration of blood
C) Storage of glucose
D) Regulation of heart rate
Answer: B) Filtration of blood
Rationale: The kidneys are primarily responsible for filtering the blood to remove waste
products and excess substances, regulating fluid and electrolyte balance, and producing urine.
2. What type of joint is the knee joint classified as?
A) Hinge joint
B) Ball and socket joint
C) Pivot joint
D) Saddle joint
Answer: A) Hinge joint
Rationale: The knee joint is a hinge joint that allows for flexion and extension, similar to the
motion of a door hinge.
3. Which of the following structures is responsible for gas exchange in the lungs?
A) Alveoli
B) Bronchi
C) Trachea
D) Pleura
Answer: A) Alveoli
Rationale: Alveoli are tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged
between the lungs and bloodstream.
4. The "fight or flight" response is associated with which part of the nervous
system?
A) Parasympathetic nervous system
B) Sympathetic nervous system
, C) Central nervous system
D) Somatic nervous system
Answer: B) Sympathetic nervous system
Rationale: The sympathetic nervous system is responsible for initiating the fight or flight
response, preparing the body for stressful situations by increasing heart rate, dilating pupils, and
releasing adrenaline.
5. What is the primary function of red blood cells?
A) To fight infection
B) To transport oxygen
C) To help with blood clotting
D) To regulate body temperature
Answer: B) To transport oxygen
Rationale: Red blood cells (RBCs) contain hemoglobin, which binds to oxygen and transports it
from the lungs to the tissues.
6. Which of the following hormones is produced by the thyroid gland?
A) Insulin
B) Thyroxine (T4)
C) Cortisol
D) Epinephrine
Answer: B) Thyroxine (T4)
Rationale: The thyroid gland produces thyroxine (T4), which regulates metabolism and energy
production in the body.
7. What is the primary role of the pancreas in digestion?
A) Secretes bile
B) Produces digestive enzymes and hormones
C) Absorbs nutrients
D) Stores food
Answer: B) Produces digestive enzymes and hormones
Rationale: The pancreas secretes digestive enzymes that break down food and hormones like
insulin that regulate blood sugar levels.
A) Production of bile
B) Filtration of blood
C) Storage of glucose
D) Regulation of heart rate
Answer: B) Filtration of blood
Rationale: The kidneys are primarily responsible for filtering the blood to remove waste
products and excess substances, regulating fluid and electrolyte balance, and producing urine.
2. What type of joint is the knee joint classified as?
A) Hinge joint
B) Ball and socket joint
C) Pivot joint
D) Saddle joint
Answer: A) Hinge joint
Rationale: The knee joint is a hinge joint that allows for flexion and extension, similar to the
motion of a door hinge.
3. Which of the following structures is responsible for gas exchange in the lungs?
A) Alveoli
B) Bronchi
C) Trachea
D) Pleura
Answer: A) Alveoli
Rationale: Alveoli are tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged
between the lungs and bloodstream.
4. The "fight or flight" response is associated with which part of the nervous
system?
A) Parasympathetic nervous system
B) Sympathetic nervous system
, C) Central nervous system
D) Somatic nervous system
Answer: B) Sympathetic nervous system
Rationale: The sympathetic nervous system is responsible for initiating the fight or flight
response, preparing the body for stressful situations by increasing heart rate, dilating pupils, and
releasing adrenaline.
5. What is the primary function of red blood cells?
A) To fight infection
B) To transport oxygen
C) To help with blood clotting
D) To regulate body temperature
Answer: B) To transport oxygen
Rationale: Red blood cells (RBCs) contain hemoglobin, which binds to oxygen and transports it
from the lungs to the tissues.
6. Which of the following hormones is produced by the thyroid gland?
A) Insulin
B) Thyroxine (T4)
C) Cortisol
D) Epinephrine
Answer: B) Thyroxine (T4)
Rationale: The thyroid gland produces thyroxine (T4), which regulates metabolism and energy
production in the body.
7. What is the primary role of the pancreas in digestion?
A) Secretes bile
B) Produces digestive enzymes and hormones
C) Absorbs nutrients
D) Stores food
Answer: B) Produces digestive enzymes and hormones
Rationale: The pancreas secretes digestive enzymes that break down food and hormones like
insulin that regulate blood sugar levels.
