TEAS Anatomy and Physiology Practice Questions: 25 Questions With Answers

TEAS Anatomy and Physiology Practice Questions: 25 Questions With Answers

Anatomy describes the structures of the body, while physiology explains how those structures function. For the TEAS, students benefit from understanding both the individual organ systems and the ways those systems work together. These original Naxles questions cover foundational concepts. Use them to identify areas for additional study rather than as a complete substitute for a structured review course.

Practice questions

1. Which chamber of the heart pumps oxygenated blood into the aorta?

• A. Right atrium
• B. Right ventricle
• C. Left atrium
• D. Left ventricle
• Answer: D. Left ventricle. It pumps oxygenated blood into systemic circulation through the aorta.

2. What is the primary function of the respiratory system?

• A. Exchange oxygen and carbon dioxide
• B. Produce red blood cells directly in the lungs
• C. Digest fats
• D. Filter blood to produce urine
• Answer: A. The respiratory system brings oxygen into the body and removes carbon dioxide.

3. Which organ produces insulin?

• A. Pancreas
• B. Thyroid
• C. Spleen
• D. Gallbladder
• Answer: A. Pancreas. Insulin is produced by beta cells in the pancreatic islets.

4. Which system provides the body's main structural support and protects many internal organs?

• A. Skeletal system
• B. Endocrine system
• C. Digestive system
• D. Urinary system
• Answer: A. Skeletal system. Bones support the body and protect organs such as the brain and heart.

5. Which part of the nervous system includes the brain and spinal cord?

• A. Central nervous system
• B. Peripheral nervous system
• C. Digestive system
• D. Endocrine system
• Answer: A. The central nervous system consists of the brain and spinal cord.

6. Where does gas exchange occur in the lungs?

• A. Alveoli
• B. Trachea
• C. Larynx
• D. Epiglottis
• Answer: A. Alveoli provide a large surface area for gas exchange with surrounding capillaries.

7. Which organ stores bile?

• A. Gallbladder
• B. Pancreas
• C. Kidney
• D. Appendix
• Answer: A. Gallbladder. The liver produces bile, and the gallbladder stores and concentrates it.

8. What is the main role of the small intestine?

• A. Absorb most nutrients from digested food
• B. Pump blood
• C. Exchange gases
• D. Store urine
• Answer: A. The small intestine is the major site of nutrient absorption.

9. Which type of blood vessel carries blood toward the heart?

• A. Artery
• B. Vein
• C. Capillary only
• D. Bronchiole
• Answer: B. Vein. Veins return blood toward the heart.

10. Which structure connects bones to other bones at joints?

• A. Tendon
• B. Ligament
• C. Neuron
• D. Alveolus
• Answer: B. Ligament. Ligaments help stabilize joints by connecting bones.

11. Which hormone is associated with increasing blood glucose by promoting the release of stored glucose?

• A. Glucagon
• B. Insulin
• C. Melatonin
• D. Oxytocin
• Answer: A. Glucagon. Glucagon helps raise blood glucose, including by stimulating glycogen breakdown in the liver.

12. Which organ is a major site of detoxification and metabolism of many substances?

• A. Liver
• B. Urinary bladder
• C. Esophagus
• D. Appendix
• Answer: A. Liver. The liver metabolizes many substances and processes nutrients.

13. Which structure carries urine from the bladder out of the body?

• A. Ureter
• B. Urethra
• C. Renal artery
• D. Nephron
• Answer: B. Urethra. Ureters transport urine to the bladder; the urethra carries it outside the body.

14. What is the main function of white blood cells?

• A. Help defend the body against infection and other threats
• B. Carry most oxygen in the blood
• C. Form the skeleton
• D. Produce bile
• Answer: A. White blood cells are part of the immune system.

15. Which organ filters blood and helps regulate water and electrolyte balance?

• A. Kidney
• B. Stomach
• C. Lung
• D. Thyroid
• Answer: A. Kidney. The kidneys regulate fluid and electrolyte balance and remove waste through urine.

16. Which part of the eye contains photoreceptors?

• A. Retina
• B. Iris
• C. Lens
• D. Sclera
• Answer: A. Retina. Rods and cones in the retina detect light.

17. What is the function of the diaphragm during inhalation?

• A. It contracts and moves downward, helping expand the chest cavity.
• B. It closes the stomach.
• C. It pumps blood into the aorta.
• D. It filters urine.
• Answer: A. Diaphragm contraction increases thoracic volume and supports air movement into the lungs.

18. Which system releases hormones into the bloodstream?

• A. Endocrine system
• B. Integumentary system only
• C. Skeletal system only
• D. Respiratory system only
• Answer: A. Endocrine glands release hormones that influence target tissues.

19. What is the main role of the large intestine?

• A. Absorb water and help form feces
• B. Produce oxygen
• C. Filter blood through nephrons
• D. Pump lymph through arteries
• Answer: A. The large intestine absorbs water and electrolytes and forms feces.

20. Which brain region is especially important for coordinating balance and movement?

• A. Cerebellum
• B. Hypothalamus
• C. Pituitary gland
• D. Olfactory bulb alone
• Answer: A. Cerebellum. It helps coordinate movements, posture, and balance.