Anatomy & Physiology 2025 | 200 Practice Exam Questions with Answers on Endocrine System, Cardiovascular System, Lymphatic & Immune System | Updated A&P Test Bank for Nursing, Pre-Med, Biology, Healthcare Exams

Anatomy & Physiology 2025 | 200 Practice Exam
Questions with Answers on Endocrine System,
Cardiovascular System, Lymphatic & Immune System |
Updated A&P Test Bank for Nursing, Pre-Med, Biology,
Healthcare Exams
QUESTION 1:
What is the primary function of hormones in the endocrine system?
• A) Regulate physiological processes
• B) Facilitate digestion
• C) Protect against pathogens
• D) Provide structural support
ANSWER:: A
Rationale: Hormones are chemical messengers that regulate physiological functions in
the body.


QUESTION 2:
Which gland is known as the "master gland" of the endocrine system?
• A) Thyroid gland
• B) Pituitary gland
• C) Adrenal gland
• D) Pancreas
ANSWER:: B
Rationale: The pituitary gland controls other endocrine glands and regulates various
bodily functions.


QUESTION 3:
What hormone is produced by the pancreas to lower blood glucose levels?
• A) Glucagon
• B) Insulin
• C) Cortisol
• D) Epinephrine
ANSWER:: B
Rationale: Insulin lowers blood glucose levels by facilitating the uptake of glucose into
cells.

,QUESTION 4:
What is the primary function of the thyroid hormone?
• A) Regulate metabolism
• B) Control blood sugar levels
• C) Promote growth
• D) Regulate blood pressure
ANSWER:: A
Rationale: Thyroid hormones are critical for regulating metabolic processes in the body.


QUESTION 5:
Which hormone is responsible for the fight-or-flight response?
• A) Cortisol
• B) Epinephrine (adrenaline)
• C) Insulin
• D) Glucagon
ANSWER:: B
Rationale: Epinephrine is released during stressful situations to prepare the body for
rapid action.


QUESTION 6:
What is the role of aldosterone in the body?
• A) Increase blood glucose
• B) Regulate sodium and potassium levels
• C) Promote protein synthesis
• D) Stimulate immune response
ANSWER:: B
Rationale: Aldosterone helps maintain electrolyte balance by regulating sodium and
potassium levels in the kidneys.


QUESTION 7:
Which gland produces growth hormone?

, • A) Thyroid gland
• B) Pituitary gland
• C) Adrenal gland
• D) Pineal gland
ANSWER:: B
Rationale: The pituitary gland produces growth hormone, which stimulates growth and
cell reproduction.


QUESTION 8:
What is the primary function of the parathyroid hormone?
• A) Increase calcium excretion
• B) Increase blood calcium levels
• C) Decrease blood sugar
• D) Regulate metabolism
ANSWER:: B
Rationale: Parathyroid hormone increases blood calcium levels by promoting bone
resorption.


QUESTION 9:
Which hormone is produced by the adrenal cortex and helps regulate metabolism?
• A) Insulin
• B) Cortisol
• C) Adrenaline
• D) Thyroxine
ANSWER:: B
Rationale: Cortisol is a glucocorticoid hormone that helps regulate metabolism and the
stress response.


QUESTION 10:
What is the primary function of the pineal gland?
• A) Regulate metabolism
• B) Produce melatonin

, • C) Control blood sugar
• D) Stimulate growth
ANSWER:: B
Rationale: The pineal gland produces melatonin, which regulates sleep-wake cycles.


QUESTION 11:
What is the primary function of insulin in the body?
• A) Increase blood glucose levels
• B) Facilitate glucose uptake
• C) Promote glycogenolysis
• D) Increase lipolysis
ANSWER:: B
Rationale: Insulin helps cells absorb glucose from the bloodstream, lowering
blood sugar levels.


QUESTION 12:
What is the main role of the left ventricle?
• A) Receive deoxygenated blood from the lungs
• B) Pump oxygenated blood to the body
• C) Pump deoxygenated blood to the lungs
• D) Receive oxygenated blood from the body
ANSWER:: B
Rationale: The left ventricle is responsible for pumping oxygenated blood into
the aorta for distribution to the body.


QUESTION 13:
What type of white blood cell is primarily responsible for the allergic response?
• A) Neutrophils
• B) Eosinophils
• C) Lymphocytes
• D) Monocytes
ANSWER:: B
Rationale: Eosinophils play a key role in combating allergens and parasites.