Phlebotomy Technician Anatomy & Physiology Practice Test

Last Updated on March 9, 2026

NHA Phlebotomy Technician Anatomy & Physiology Practice Test 30 Questions Answers with Explanation. NHA’s Anatomy & Physiology includes 25 modules of right-sized content interwoven with interactivity and instant performance feedback.

Phlebotomy Technician Anatomy & Physiology Practice Test

Q1. Which of the following best describes the hierarchical organization of the human body from simplest to most complex?

  • (A) Cells, Tissues, Organs, Organ Systems, Organism
  • (B) Tissues, Cells, Organs, Organ Systems, Organism
  • (C) Organ Systems, Organs, Tissues, Cells, Organism
  • (D) Organs, Organ Systems, Tissues, Cells, Organism

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (A) Explanation: The correct order is cells, tissues, organs, organ systems, and organism.[/su_spoiler]

Q2. Which type of chemical bond involves the sharing of electrons between atoms?

  • (A) Ionic bond
  • (B) Hydrogen bond
  • (C) Covalent bond
  • (D) Metallic bond

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (C) Explanation: Covalent bonds involve the sharing of electrons between atoms.[/su_spoiler]

Q3. The basic unit of life is the:

  • (A) Atom
  • (B) Molecule
  • (C) Cell
  • (D) Tissue

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (C) Explanation: The cell is the basic unit of life.[/su_spoiler]

Q4. Which type of tissue is responsible for covering body surfaces and lining body cavities?

  • (A) Connective tissue
  • (B) Epithelial tissue
  • (C) Muscle tissue
  • (D) Nervous tissue

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: Epithelial tissue covers body surfaces and lines body cavities.[/su_spoiler]

Q5. Pathogens are:

  • (A) Harmful chemicals
  • (B) Disease-producing organisms
  • (C) Nutritional deficiencies
  • (D) Genetic mutations

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: Pathogens are organisms that cause disease.[/su_spoiler]

Q6. The largest organ of the integumentary system is the:

  • (A) Heart
  • (B) Liver
  • (C) Skin
  • (D) Lung

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (C) Explanation: The skin is the largest organ of the integumentary system.[/su_spoiler]

Q7. Which bone is the longest in the human body?

  • (A) Femur
  • (B) Humerus
  • (C) Tibia
  • (D) Radius

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (A) Explanation: The femur is the longest bone in the human body.[/su_spoiler]

Q8. Muscles are attached to bones by:

  • (A) Ligaments
  • (B) Cartilage
  • (C) Tendons
  • (D) Fascia

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (C) Explanation: Tendons attach muscles to bones.[/su_spoiler]

Q9. The spinal cord is protected by the:

  • (A) Cranium
  • (B) Vertebral column
  • (C) Pelvis
  • (D) Rib cage

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The spinal cord is protected by the vertebral column.[/su_spoiler]

Q10. Which part of the brain is responsible for regulating vital functions such as heart rate and breathing?

  • (A) Cerebrum
  • (B) Cerebellum
  • (C) Brainstem
  • (D) Thalamus

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (C) Explanation: The brainstem regulates vital functions such as heart rate and breathing.[/su_spoiler]

Q11. The sensory system includes all of the following EXCEPT:

  • (A) Eyes
  • (B) Ears
  • (C) Kidneys
  • (D) Skin

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (C) Explanation: The sensory system includes eyes, ears, and skin, but not kidneys.[/su_spoiler]

Q12. Which gland is known as the “master gland” of the endocrine system?

  • (A) Thyroid gland
  • (B) Pituitary gland
  • (C) Adrenal gland
  • (D) Pancreas

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The pituitary gland is often called the “master gland” because it regulates many other endocrine glands.[/su_spoiler]

Q13. What is the primary function of red blood cells?

  • (A) Fighting infection
  • (B) Clotting blood
  • (C) Transporting oxygen
  • (D) Regulating body temperature

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (C) Explanation: The primary function of red blood cells is to transport oxygen throughout the body.[/su_spoiler]

Q14. The upper chambers of the heart are known as:

  • (A) Ventricles
  • (B) Atria
  • (C) Septa
  • (D) Valves

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The upper chambers of the heart are called atria.[/su_spoiler]

Q15. Arteries carry blood:

  • (A) Away from the heart
  • (B) Toward the heart
  • (C) Only to the lungs
  • (D) Only to the brain

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (A) Explanation: Arteries carry blood away from the heart.[/su_spoiler]

Q16. The lymphatic system includes:

  • (A) Blood vessels and blood circulation
  • (B) Lymph nodes and lymphoid tissue
  • (C) Heart and blood vessels
  • (D) Liver and pancreas

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The lymphatic system includes lymph nodes and lymphoid tissue.[/su_spoiler]

Q17. Immunity refers to:

  • (A) The body’s ability to resist disease
  • (B) The production of red blood cells
  • (C) The process of digestion
  • (D) The regulation of body temperature

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (A) Explanation: Immunity is the body’s ability to resist disease.[/su_spoiler]

Q18. The primary function of the respiratory system is to:

  • (A) Transport nutrients
  • (B) Exchange gases between the body and the environment
  • (C) Regulate body temperature
  • (D) Protect against pathogens

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The primary function of the respiratory system is to exchange gases (oxygen and carbon dioxide) between the body and the environment.[/su_spoiler]

Q19. The digestive system begins with the:

  • (A) Stomach
  • (B) Small intestine
  • (C) Mouth
  • (D) Esophagus

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (C) Explanation: The digestive system begins with the mouth, where food intake and initial digestion occur.[/su_spoiler]

Q20. Metabolism refers to:

  • (A) The breakdown of food
  • (B) The total of all chemical reactions in the body
  • (C) The absorption of nutrients
  • (D) The excretion of waste

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: Metabolism is the total of all chemical reactions that occur within the body.[/su_spoiler]

Q21. The primary function of the urinary system is to:

  • (A) Digest food
  • (B) Filter blood and produce urine
  • (C) Regulate body temperature
  • (D) Fight infections

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The primary function of the urinary system is to filter blood and produce urine.[/su_spoiler]

Q22. The majority of body fluids are found:

  • (A) Inside the cells (intracellular)
  • (B) Outside the cells (extracellular)
  • (C) In the bloodstream
  • (D) In the digestive system

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (A) Explanation: The majority of body fluids are found inside the cells, referred to as intracellular fluid.[/su_spoiler]

Q23. The male reproductive system includes the:

  • (A) Ovaries
  • (B) Testes
  • (C) Uterus
  • (D) Fallopian tubes

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The male reproductive system includes the testes, which produce sperm.[/su_spoiler]

Q24. During pregnancy, the developing baby is nourished through the:

  • (A) Placenta
  • (B) Amniotic sac
  • (C) Fallopian tube
  • (D) Ovaries

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (A) Explanation: The placenta nourishes the developing baby during pregnancy.[/su_spoiler]

Q25. Hereditary diseases are caused by:

  • (A) Environmental factors
  • (B) Genetic mutations
  • (C) Poor nutrition
  • (D) Pathogens

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: Hereditary diseases are caused by genetic mutations passed from parents to offspring.[/su_spoiler]

Q26. The body’s first line of defense against pathogens is:

  • (A) White blood cells
  • (B) Skin and mucous membranes
  • (C) Antibodies
  • (D) Vaccines

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The skin and mucous membranes act as the body’s first line of defense against pathogens.[/su_spoiler]

Q27. Which part of the brain is responsible for memory and learning?

  • (A) Cerebellum
  • (B) Hippocampus
  • (C) Brainstem
  • (D) Thalamus

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The hippocampus is responsible for memory and learning.[/su_spoiler]

Q28. Hormones are released directly into the bloodstream by:

  • (A) Exocrine glands
  • (B) Endocrine glands
  • (C) Sweat glands
  • (D) Salivary glands

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: Endocrine glands release hormones directly into the bloodstream.[/su_spoiler]

Q29. The process of breathing in is called:

  • (A) Expiration
  • (B) Inspiration
  • (C) Perspiration
  • (D) Digestion

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: Inspiration is the process of breathing in.[/su_spoiler]

Q30. The main function of the large intestine is to:

  • (A) Absorb nutrients
  • (B) Absorb water and form feces
  • (C) Digest proteins
  • (D) Detoxify the blood

[su_spoiler title=”View Answer” style=”fancy” icon=”folder-1″]Answer: (B) Explanation: The main function of the large intestine is to absorb water and form feces.[/su_spoiler]

See also:

 Chapter-wise Practice Test