ATI Anatomy and Physiology 2026 Online Practice Questions and Answers 100% PASS

ATI Anatomy and Physiology
2026 Online Practice Questions
and Answers 100% PASS

Which of the following occurs at the beginning of systole in a healthy heart?

(HINT: "lub" sound)




- The ventricles contract.


- The atria contract.


- The mitral valve opens.


- The tricuspid valve opens.—ANSWER-The ventricles contract. (During

systole of a healthy heart, the ventricles contract, moving blood from the

ventricles to the aorta and the pulmonary artery.)


Which of the following is a structure of the inner ear?




- Tympanic membrane


- Cochlea


- Stapes

,- Auricle—ANSWER-Cochlea


Which of the following structures of the respiratory system is the site of gas

exchange?




- Pleurae


- Alveoli


- Trachea


- Bronchioles—ANSWER-Alveoli


Bile aids in the digestion of which of the following?




- Fat


- Protein


- Vitamins


- Carbohydrates—ANSWER-Fat


Which of the following is the average length of the female urethra?




- 1 to 1.5 inches


- 2 to 2.5 inches


- 5 to 5.5 inches


- 6 to 6.5 inches—ANSWER-1 to 1.5 inches

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, Which of the following tissues attaches muscle to bone?




- Fascia


- Tendon


- Ligament


- Bursa—ANSWER-Tendon




(Tendons are strong fibrous connective tissues that attach muscles to

bones.)


Which of the following antibody types mediates the body's response to an

allergen?




- IgA


- IgD


- IgE


- IgG—ANSWER-IgE


Where are nutrients absorbed when transported into the bloodstream?




- Stomach


- Gallbladder