ATI Anatomy and Physiology Exam
Questions and Well Detailed Answers
(100% Correct Answers) A+ 2025
Which of the following types of cells is primarily responsible for the destruction of old
cells and invasive micro-organisms? -CORRECTANSWER Macrophages
Which of the following is the measurement of the percentage of red blood cells in whole
blood? -CORRECTANSWER Hematocrit
Which of the following blood vessels carry deoxygenated blood to the right atrium of the
heart? -CORRECTANSWER Superior and inferior vena cavae
Which of the following parts of the central nervous system is responsible for the control
of involuntary respirations? -CORRECTANSWER Medulla oblongata
Which of the following structures prevents food from being aspirated into the lungs? -
CORRECTANSWER Epiglottis
, Which of the following describes the event of ovulation? -CORRECTANSWER The
graafian follicle releases an ovum.
Straightening the elbow by lowering the hand affects which of the following muscles? -
CORRECTANSWER Triceps brachii
Production of which of the following is a function of the prostate gland? -
CORRECTANSWER Substance to enhance sperm motility
In a normally functioning cardiovascular system, where does the heartbeat originate? -
CORRECTANSWER Sinoatrial node
Which of the following valves prevents backflow of blood from the right ventricle into the
right atrium of the heart? -CORRECTANSWER Tricuspid
Which of the following structures comes after the ascending colon? -
CORRECTANSWER Transverse colon
Which of the following is a result of the process of meiosis? -CORRECTANSWER
Sperm and ova are produced.
Questions and Well Detailed Answers
(100% Correct Answers) A+ 2025
Which of the following types of cells is primarily responsible for the destruction of old
cells and invasive micro-organisms? -CORRECTANSWER Macrophages
Which of the following is the measurement of the percentage of red blood cells in whole
blood? -CORRECTANSWER Hematocrit
Which of the following blood vessels carry deoxygenated blood to the right atrium of the
heart? -CORRECTANSWER Superior and inferior vena cavae
Which of the following parts of the central nervous system is responsible for the control
of involuntary respirations? -CORRECTANSWER Medulla oblongata
Which of the following structures prevents food from being aspirated into the lungs? -
CORRECTANSWER Epiglottis
, Which of the following describes the event of ovulation? -CORRECTANSWER The
graafian follicle releases an ovum.
Straightening the elbow by lowering the hand affects which of the following muscles? -
CORRECTANSWER Triceps brachii
Production of which of the following is a function of the prostate gland? -
CORRECTANSWER Substance to enhance sperm motility
In a normally functioning cardiovascular system, where does the heartbeat originate? -
CORRECTANSWER Sinoatrial node
Which of the following valves prevents backflow of blood from the right ventricle into the
right atrium of the heart? -CORRECTANSWER Tricuspid
Which of the following structures comes after the ascending colon? -
CORRECTANSWER Transverse colon
Which of the following is a result of the process of meiosis? -CORRECTANSWER
Sperm and ova are produced.
