STS Exam Practice Questions and
Answers 100% Pass
Which of the following statements is NOT TRUE about the shape, position, and
location of the heart?
A. Approximately two-thirds of the heart is found to the left of the midline.
B. The heart is shaped like a cone with the base facing the right shoulder.
C. The heart is enclosed in a double-layered sac called the pleural membrane.
D. The heart is located between the two lungs within the mediastinum. - ✔✔C. The
heart is enclosed in a double-layered sac called the pleural membrane.
The primary chemical stimulus for breathing is the concentration of ______. - ✔✔carbon
dioxide in the blood
The olfactory area is found within the _____. - ✔✔temporal lobe
The principal region of the neuron for receiving information is the _____. - ✔✔dendrite
Sensory signals for photoreception, chemoreception, mechanoreception,
thermoreception are received and analyzed in the ______. - ✔✔cerebrum
When the pulmonary valve closes, it prevents the backflow of blood from the ______. -
✔✔pulmonary artery going to the right ventricle
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 1
, What correctly describes the method of inhalation? (rib muscles and diaphragm, chest
volume, air pressure) - ✔✔rib muscles and diaphragm contract, volume of chest cavity
increases, and air pressure decreases
The following are NOT TRUE of the functions of esophagus except:
A. contains enzyme for emulsification of fats
B. extends from the pharynx to the stomach
C. functions in digestion of carbohydrates
D. has a thick lining that can tolerate the chyme - ✔✔B. extends from the pharynx to the
stomach
The opening of the right atrium into the right ventricle is guarded by the _____. -
✔✔tricuspid valve
Which is NOT a function of the skin?
A. protects joints
B. prevents water loss
C. reduces the chance of infection
D. protects against harmful chemicals - ✔✔A. protects joints (this is the skeletal system)
The occipital lobe's primary function is ____. - ✔✔Integrating visual input
Freshly oxygenated blood is delivered to the __________ and then it passes into the
__________ to be pumped to the entire body. - ✔✔left atrium; left ventricle
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
Answers 100% Pass
Which of the following statements is NOT TRUE about the shape, position, and
location of the heart?
A. Approximately two-thirds of the heart is found to the left of the midline.
B. The heart is shaped like a cone with the base facing the right shoulder.
C. The heart is enclosed in a double-layered sac called the pleural membrane.
D. The heart is located between the two lungs within the mediastinum. - ✔✔C. The
heart is enclosed in a double-layered sac called the pleural membrane.
The primary chemical stimulus for breathing is the concentration of ______. - ✔✔carbon
dioxide in the blood
The olfactory area is found within the _____. - ✔✔temporal lobe
The principal region of the neuron for receiving information is the _____. - ✔✔dendrite
Sensory signals for photoreception, chemoreception, mechanoreception,
thermoreception are received and analyzed in the ______. - ✔✔cerebrum
When the pulmonary valve closes, it prevents the backflow of blood from the ______. -
✔✔pulmonary artery going to the right ventricle
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 1
, What correctly describes the method of inhalation? (rib muscles and diaphragm, chest
volume, air pressure) - ✔✔rib muscles and diaphragm contract, volume of chest cavity
increases, and air pressure decreases
The following are NOT TRUE of the functions of esophagus except:
A. contains enzyme for emulsification of fats
B. extends from the pharynx to the stomach
C. functions in digestion of carbohydrates
D. has a thick lining that can tolerate the chyme - ✔✔B. extends from the pharynx to the
stomach
The opening of the right atrium into the right ventricle is guarded by the _____. -
✔✔tricuspid valve
Which is NOT a function of the skin?
A. protects joints
B. prevents water loss
C. reduces the chance of infection
D. protects against harmful chemicals - ✔✔A. protects joints (this is the skeletal system)
The occipital lobe's primary function is ____. - ✔✔Integrating visual input
Freshly oxygenated blood is delivered to the __________ and then it passes into the
__________ to be pumped to the entire body. - ✔✔left atrium; left ventricle
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
