Immune System
Which of the immune system’s organs is primarily responsible for filtering out
old red blood cells?
A. Thymus
B. Spleen
C. Lymph nodes
D. Tonsils
B. Spleen
What is the main role of white blood cells in the immune system?
A. To carry oxygen to tissues.
B. To produce digestive acids.
C. To regulate blood sugar levels.
D. To attack and destroy pathogens.
D. To attack and destroy pathogens.
Which hormone is responsible for regulating sleep patterns and is produced by
the pineal gland?
A. cortisol
B. insulin
C. melatonin
D. thyroxine
C. melatonin
This part of the digestive system secretes saliva which helps to chemically break
down food.
A. teeth
B. tongue
C. mouth
D. esophagus
C. mouth
What is the primary function of the circulatory system?
A. to transport nutrients and remove wastes from the body
B. to produce blood cells
C. to digest food
D. to control body temperature
A. to transport nutrients and remove wastes from the body
What happens in bone marrow as part of the immune system?
A. It filters toxins out of the blood.
B. It produces stem cells that can become red or white blood cells.
C. It stores fat cells for energy.
D. It produces digestive enzymes.
B. It produces stem cells that can become red or white blood cells.
The digestive system is a group of organs working together to __________.
A. break down food into smaller pieces
B. add bile to the food in the stomach
C. push food through the system
D. turn food into nutrients for energy, growth, and cell repair.
D. turn food into nutrients for energy, growth, and cell repair.
How does the thyroid gland help regulate the body's metabolism?
A. by producing cortisol to manage stress
B. by releasing thyroxine to control the rate of chemical reactions in the body
C. by producing insulin to lower blood sugar levels
D. by secreting testosterone to regulate growth
B. by releasing thyroxine to control the rate of chemical reactions in the body
Which statement best describes the function of the esophagus in the digestive
system?
A. It grinds and mixes food into a liquid form.
B. It carries food and liquids from the pharynx to the stomach using muscle contractions.
C. It produces digestive enzymes that break down proteins.
D. It absorbs water and nutrients from digested food.
B. It carries food and liquids from the pharynx to the stomach using muscle contractions.
What occurs in the pulmonary circulation?
A. Blood delivers oxygen to the muscles.
B. Blood is cooled down.
C. Blood is stored in the heart.
D. Blood receives oxygen in the lungs.
D. Blood receives oxygen in the lungs.
When a pathogen enters the body through a cut, what is the immediate immune
response?
A. Platelets form a clot to seal the cut and prevent further infection.
B. The lungs increase oxygen supply to the blood.
C. The digestive system isolates the pathogen to be expelled.
D. The nervous system sends signals to increase body temperature.
A. Platelets form a clot to seal the cut and prevent further infection.
14. Which of the following is an example of a negative feedback loop in the endocrine
system?
A. The thyroid gland produces more thyroxine as the body's metabolism slows down.
B. The adrenal glands release adrenaline to prepare the body for a “fight or flight”
response.
C. The pancreas releases insulin to lower blood sugar levels when they rise after a meal.
D. The pineal gland produces more melatonin as daylight decreases.
C. The pancreas releases insulin to lower blood sugar levels when they rise after a meal.
The testes and ovaries are ___ glands and work with the endocrine system.
A. integumentary
B. digestive
C. muscular
D. reproductive
D. reproductive
The stomach helps to digest food with _____________ processes.
A. chemical
B. mechanical
C. chemical and mechanical
D. none of these
C. chemical and mechanical
What is the main role of the heart in the circulatory system?
A. to filter blood
B. to pump blood throughout the body
C. to warm the blood
D. to store blood
B. to pump blood throughout the body
Why might a doctor recommend the removal of someone’s tonsils?
A. Because they started producing too much insulin.
B. Because they began absorbing too many nutrients.
C. Because they’re getting infected frequently and causing sore throats.
D. Because they’re obstructing the passage of air while breathing.
C. Because they’re getting infected frequently and causing sore throats.
Anemia in the circulatory system is primarily a result of:
A. too much plaque in arteries
B. high blood pressure
C. abnormal heart rhythms
D. lack of healthy red blood cells to carry oxygen
D. lack of healthy red blood cells to carry oxygen
13. What is one of the primary functions of the pancreas in the human body?
A. to produce hormones that regulate metabolism and growth
B. to release hormones that control blood sugar levels by lowering or raising them
C. to secrete hormones that manage stress and blood pressure
D. to release hormones that regulate sleep patterns and cycles
B. to release hormones that control blood sugar levels by lowering or raising them
This organ produces a compound called bile that helps aid in digestion.
A. liver
B. throat
C. pancreas
D. gallbladder
A. liver
Where does systemic circulation send blood?
A. from the heart to the lungs and back
B. from the heart to all parts of the body except the lungs
C. only to the lower body
D. only to the brain
B. from the heart to all parts of the body except the lungs
7. Which of the following organs belong to the immune system? Select ALL that apply.
❑ Pancreas
❑ Tonsils
❑ Lymph nodes
❑ Liver
❑ Spleen
❑ Thymus
❑ Lymph nodes
❑ Tonsils
❑ Spleen
❑ Thymus
Which of the following tissues are a part of the immune system? Select ALL that apply.
❑ Muscle tissue
❑ Bone marrow
❑ Nervous tissue
❑ Lymph tissue
❑ Red blood cells
❑ White blood cell
❑ Bone marrow
❑ Lymph tissue
❑ White blood cell
Which statements refer to the functions of the endocrine system? Choose THREE
correct answers.
❑ It maintains the correct chemical balance.
❑ It secretes hormones.
❑ It protects the body from UV radiation.
❑ It regulates mood, sleep, and growth.
❑ It exchanges oxygen and carbon dioxide between the body and air.
❑ It maintains the correct chemical balance.
❑ It secretes hormones.
❑ It regulates mood, sleep, and growth.
This organ stores bile until it is needed in the digestive tract.
A. liver
B. throat
C. pancreas
D. gallbladder
D. gallbladder
Which chamber of the heart receives oxygen-rich blood from the lungs?
A. right atrium
B. right ventricle
C. left atrium
D. left ventricle
C. left atrium