Question 1:
Which of the following is the primary function of the red bone
marrow?
A) Production of hormones
B) Blood cell production
C) Storage of fat
D) Mineral storage
Answer: B) Blood cell production
Rationale: The red bone marrow is the primary site for the production
of blood cells, including red blood cells, white blood cells, and platelets.
It is involved in hematopoiesis, a process essential for the formation of
these cells.
Question 2:
Which part of the brain is primarily responsible for regulating body
temperature?
A) Cerebellum
B) Medulla oblongata
C) Hypothalamus
D) Pons
Answer: C) Hypothalamus
Rationale: The hypothalamus is responsible for regulating various
autonomic functions, including body temperature, hunger, thirst, and
sleep patterns. It acts as the body's thermostat, maintaining homeostasis.
Question 3:
Which of the following structures prevents food from entering the
trachea during swallowing?
,A) Epiglottis
B) Uvula
C) Soft palate
D) Larynx
Answer: A) Epiglottis
Rationale: The epiglottis is a flap of tissue located at the base of the
tongue that covers the trachea during swallowing, preventing food and
liquid from entering the windpipe and ensuring that food goes into the
esophagus.
Question 4:
What is the primary function of the alveoli in the lungs?
A) Gas exchange
B) Secretion of mucus
C) Circulation of blood
D) Protection of the lungs
Answer: A) Gas exchange
Rationale: The alveoli are tiny air sacs in the lungs where the exchange
of oxygen and carbon dioxide takes place between the air and blood.
They provide a large surface area for efficient gas exchange.
Question 5:
Which of the following hormones is released by the pancreas to
lower blood glucose levels?
A) Insulin
B) Glucagon
C) Cortisol
D) Epinephrine
, Answer: A) Insulin
Rationale: Insulin is a hormone produced by the pancreas that helps
lower blood glucose levels by promoting the uptake of glucose into cells
for energy or storage. Glucagon, on the other hand, raises blood glucose
levels.
Question 6:
Which of the following structures is responsible for the production
of cerebrospinal fluid (CSF)?
A) Pineal gland
B) Choroid plexus
C) Pituitary gland
D) Medulla oblongata
Answer: B) Choroid plexus
Rationale: The choroid plexus is a network of blood vessels in the
ventricles of the brain responsible for producing cerebrospinal fluid
(CSF). CSF cushions and protects the brain and spinal cord.
Question 7:
Which of the following is a function of the lymphatic system?
A) Transporting oxygen to tissues
B) Producing red blood cells
C) Defending the body against infection
D) Secreting digestive enzymes
Answer: C) Defending the body against infection
Rationale: The lymphatic system plays a key role in immune function,
as it is involved in filtering lymph and producing immune cells such as
Which of the following is the primary function of the red bone
marrow?
A) Production of hormones
B) Blood cell production
C) Storage of fat
D) Mineral storage
Answer: B) Blood cell production
Rationale: The red bone marrow is the primary site for the production
of blood cells, including red blood cells, white blood cells, and platelets.
It is involved in hematopoiesis, a process essential for the formation of
these cells.
Question 2:
Which part of the brain is primarily responsible for regulating body
temperature?
A) Cerebellum
B) Medulla oblongata
C) Hypothalamus
D) Pons
Answer: C) Hypothalamus
Rationale: The hypothalamus is responsible for regulating various
autonomic functions, including body temperature, hunger, thirst, and
sleep patterns. It acts as the body's thermostat, maintaining homeostasis.
Question 3:
Which of the following structures prevents food from entering the
trachea during swallowing?
,A) Epiglottis
B) Uvula
C) Soft palate
D) Larynx
Answer: A) Epiglottis
Rationale: The epiglottis is a flap of tissue located at the base of the
tongue that covers the trachea during swallowing, preventing food and
liquid from entering the windpipe and ensuring that food goes into the
esophagus.
Question 4:
What is the primary function of the alveoli in the lungs?
A) Gas exchange
B) Secretion of mucus
C) Circulation of blood
D) Protection of the lungs
Answer: A) Gas exchange
Rationale: The alveoli are tiny air sacs in the lungs where the exchange
of oxygen and carbon dioxide takes place between the air and blood.
They provide a large surface area for efficient gas exchange.
Question 5:
Which of the following hormones is released by the pancreas to
lower blood glucose levels?
A) Insulin
B) Glucagon
C) Cortisol
D) Epinephrine
, Answer: A) Insulin
Rationale: Insulin is a hormone produced by the pancreas that helps
lower blood glucose levels by promoting the uptake of glucose into cells
for energy or storage. Glucagon, on the other hand, raises blood glucose
levels.
Question 6:
Which of the following structures is responsible for the production
of cerebrospinal fluid (CSF)?
A) Pineal gland
B) Choroid plexus
C) Pituitary gland
D) Medulla oblongata
Answer: B) Choroid plexus
Rationale: The choroid plexus is a network of blood vessels in the
ventricles of the brain responsible for producing cerebrospinal fluid
(CSF). CSF cushions and protects the brain and spinal cord.
Question 7:
Which of the following is a function of the lymphatic system?
A) Transporting oxygen to tissues
B) Producing red blood cells
C) Defending the body against infection
D) Secreting digestive enzymes
Answer: C) Defending the body against infection
Rationale: The lymphatic system plays a key role in immune function,
as it is involved in filtering lymph and producing immune cells such as
