ATI TEAS 7 Science Practice Questions for
Nursing Entrance Exam (2025)
Science Practice Questions
The following 80 multiple-choice questions are designed to help you prepare
for the Science section of the ATI TEAS 7 exam. Each question has four an-
swer choices (A–D), with only one correct answer. The questions cover Human
Anatomy and Physiology, Life and Physical Sciences, and Scientific Reasoning,
aligned with the 2025 TEAS guidelines.
Human Anatomy and Physiology (29 Questions)
1. Which structure in the heart prevents backflow of blood from the ventricles
to the atria?
A. Aortic valve
B. Mitral valve
C. Pulmonary valve
D. Tricuspid valve
2. What is the primary function of the bronchioles in the respiratory system?
A. To secrete mucus
B. To conduct air to the alveoli
C. To filter air
D. To regulate blood pH
3. Which hormone regulates calcium levels in the blood?
A. Insulin
B. Parathyroid hormone
C. Cortisol
D. Glucagon
4. Which type of muscle tissue is found in the walls of blood vessels?
1
, A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
D. Striated muscle
5. Where does bile production occur in the digestive system?
A. Pancreas
B. Liver
C. Gallbladder
D. Small intestine
6. What is the function of the atrioventricular (AV) node in the heart?
A. To initiate the heartbeat
B. To delay the electrical impulse
C. To pump blood to the lungs
D. To regulate blood pressure
7. Which bone is located in the forearm and is aligned with the thumb?
A. Ulna
B. Radius
C. Humerus
D. Scapula
8. What type of joint is found in the elbow?
A. Ball-and-socket joint
B. Hinge joint
C. Pivot joint
D. Gliding joint
9. Which blood vessel carries oxygenated blood to the body’s tissues?
A. Pulmonary artery
B. Aorta
C. Vena cava
D. Coronary vein
10. What is the primary function of white blood cells?
A. To transport oxygen
B. To fight infection
2
, C. To clot blood
D. To regulate pH
11. Which part of the brain controls involuntary actions like breathing?
A. Cerebellum
B. Medulla oblongata
C. Hypothalamus
D. Frontal lobe
12. What molecule is broken down to release energy during muscle contrac-
tion?
A. Glucose
B. Creatine phosphate
C. Lactic acid
D. Hemoglobin
13. Which gland secretes melatonin to regulate sleep cycles?
A. Thyroid
B. Pineal
C. Adrenal
D. Pituitary
14. What structure in the larynx produces sound?
A. Epiglottis
B. Vocal cords
C. Trachea
D. Pharynx
15. Which tissue connects muscles to bones?
A. Ligament
B. Tendon
C. Cartilage
D. Fascia
16. What is the role of lymph nodes in the lymphatic system?
A. To produce red blood cells
B. To filter lymph and trap pathogens
C. To transport oxygen
3
Nursing Entrance Exam (2025)
Science Practice Questions
The following 80 multiple-choice questions are designed to help you prepare
for the Science section of the ATI TEAS 7 exam. Each question has four an-
swer choices (A–D), with only one correct answer. The questions cover Human
Anatomy and Physiology, Life and Physical Sciences, and Scientific Reasoning,
aligned with the 2025 TEAS guidelines.
Human Anatomy and Physiology (29 Questions)
1. Which structure in the heart prevents backflow of blood from the ventricles
to the atria?
A. Aortic valve
B. Mitral valve
C. Pulmonary valve
D. Tricuspid valve
2. What is the primary function of the bronchioles in the respiratory system?
A. To secrete mucus
B. To conduct air to the alveoli
C. To filter air
D. To regulate blood pH
3. Which hormone regulates calcium levels in the blood?
A. Insulin
B. Parathyroid hormone
C. Cortisol
D. Glucagon
4. Which type of muscle tissue is found in the walls of blood vessels?
1
, A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
D. Striated muscle
5. Where does bile production occur in the digestive system?
A. Pancreas
B. Liver
C. Gallbladder
D. Small intestine
6. What is the function of the atrioventricular (AV) node in the heart?
A. To initiate the heartbeat
B. To delay the electrical impulse
C. To pump blood to the lungs
D. To regulate blood pressure
7. Which bone is located in the forearm and is aligned with the thumb?
A. Ulna
B. Radius
C. Humerus
D. Scapula
8. What type of joint is found in the elbow?
A. Ball-and-socket joint
B. Hinge joint
C. Pivot joint
D. Gliding joint
9. Which blood vessel carries oxygenated blood to the body’s tissues?
A. Pulmonary artery
B. Aorta
C. Vena cava
D. Coronary vein
10. What is the primary function of white blood cells?
A. To transport oxygen
B. To fight infection
2
, C. To clot blood
D. To regulate pH
11. Which part of the brain controls involuntary actions like breathing?
A. Cerebellum
B. Medulla oblongata
C. Hypothalamus
D. Frontal lobe
12. What molecule is broken down to release energy during muscle contrac-
tion?
A. Glucose
B. Creatine phosphate
C. Lactic acid
D. Hemoglobin
13. Which gland secretes melatonin to regulate sleep cycles?
A. Thyroid
B. Pineal
C. Adrenal
D. Pituitary
14. What structure in the larynx produces sound?
A. Epiglottis
B. Vocal cords
C. Trachea
D. Pharynx
15. Which tissue connects muscles to bones?
A. Ligament
B. Tendon
C. Cartilage
D. Fascia
16. What is the role of lymph nodes in the lymphatic system?
A. To produce red blood cells
B. To filter lymph and trap pathogens
C. To transport oxygen
3
