HESI ENTRANCE TESTBANK EXAM 800 QUESTIONS AND CORRECT
ANSWERS COVERING MOST TESTED QUESTIONS BASED ON
2026/2027 LATEST GUIDELINES
What are the most abundant elements of the human body? - CORRECT ANSWER-Carbon,
Hydrogen, Oxygen, Nitrogen
90% of the human body is composed of just four elements which are: - CORRECT ANSWER-Carbon,
Hydrogen, Oxygen, Nitrogen
The smallest unit of an element that still retains the chemical and physical properties of the element
is called: - CORRECT ANSWER-Atom
Subatomic particles are: - CORRECT ANSWER-Protons (positive), Neutrons (neutral) and Electrons
(negative)
All matter is composed of basic substances called - CORRECT ANSWER-Elements
An atom that tells you how many protons an atom has is called: - CORRECT ANSWER-Atomic
Number
The number of protons and neutrons is called: - CORRECT ANSWER-Mass Number
What is isotope? - CORRECT ANSWER-The same element but different number in protons and
neutrons-Mass Number (protons plus neutrons) minus Atomic Number (number of protons) equals
the number of neutrons.
What is radioactive isotope? - CORRECT ANSWER-Atom whose nucleus undergoes degeneration
and in the process gives off radiation
What is a molecule? - CORRECT ANSWER-Atoms bonded together to form a chemical unit
What is a compound? - CORRECT ANSWER-Combining different atoms
,What is ionic bond? - CORRECT ANSWER-Ions with opposite charges attract
What are ions? - CORRECT ANSWER-Particle that is electrically charged because it has gained or
lost one or more eletrons
What is a covalent bonds? - CORRECT ANSWER-Atoms sharing electrons instead of losing or gain
them
What is polar bond? - CORRECT ANSWER-Bond created when electrons shared by adjacent atoms
are shared unequally
hydrophilic means - CORRECT ANSWER-water-living
Hydrophobic means - CORRECT ANSWER-water-fearing
What is electrolyte? - CORRECT ANSWER-Substances that release ions when puts into water
What is pH? - CORRECT ANSWER-a measure of hydrogen ion concentration
Anterior position - CORRECT ANSWER-a body part is located towards the front (ventral)
Posterior position - CORRECT ANSWER-a body part is located toward the back. (dorsal)
Superior position - CORRECT ANSWER-a body part is located ABOVE another part or towards the
head
Anatomy - CORRECT ANSWER-structure as well as its relationship with other structure
Physiology - CORRECT ANSWER-function of the body
Proximal - CORRECT ANSWER-a body part is CLOSER to a specific point of origin or attachment or
closer to the trunk of the body
,Distal - CORRECT ANSWER-a body part is FARTHER from the specific point of the origin or
attachment
Superficial -external - CORRECT ANSWER-a body part is located near the surface
Deep (internal) - CORRECT ANSWER-a body part is located away from the surface
A sagittal plane (median) cuts the body - CORRECT ANSWER-right down the middle
A frontal plane (coronal) is perpendicular (oppose) so it cuts the body - CORRECT ANSWER-from
ear to ear, from shoulder to shoulder across
A transverse plane cuts the body - CORRECT ANSWER-from the navel in half dividing the superior
from the inferior
A group of similar types of cells that performs a specific function is a(n): - CORRECT ANSWER-
Tissue
What is the mechanism called which brings about an increasing change in the same direction?
Example: child birth - CORRECT ANSWER-positive feedback
The relative consistency of the body's internal environment is called - CORRECT ANSWER-
hemostasis
A group of similar types of cells that performs a specific function is a(n): - CORRECT ANSWER-tissue
A group of two or more types of tissues is a(n): - CORRECT ANSWER-Organ
Structures found WITHIN a cell that perform specific functions are: - CORRECT ANSWER-Organelles
Place the levels of organization in order from least complex to most complex - CORRECT ANSWER-
atom, molecule, organelle, cell, tissue, organ, organ system, organism
, The mitochondrion is an example of a(an) - CORRECT ANSWER-Organelle
The nose is _______ to the chin - CORRECT ANSWER-Superior
The muscles are _____ to the skin - CORRECT ANSWER-Deep
The sternum is anterior or ______ to the heart. - CORRECT ANSWER-Ventral
What is the scientific term for the mouth - CORRECT ANSWER-Oral
Identify the plane that would divide the body into left and right sides - CORRECT ANSWER-Sagittal
The plane that divides a body part into anterior and posterior sections is the ______ plane -
CORRECT ANSWER-Frontal (coronal) plane
The cavity that contains the pleural and abdominopelvic cavities is the ______ cavity - CORRECT
ANSWER-Anterior (ventral)
The cavity that contains the pericardial and pleural cavities is the ______ cavity. - CORRECT
ANSWER-Ventral and thoracic
The vertebral canal and cranial cavity is located within the ______ cavity - CORRECT ANSWER-
Posterior, dorsal cavity
The serous membrane that lines the thoracic cavity is the - CORRECT ANSWER-visceral pleura
The serous membrane covering the heart is the - CORRECT ANSWER-Parietal pericardium
Which of the following is NOT found in the mediastinum? - CORRECT ANSWER-Lungs
ANSWERS COVERING MOST TESTED QUESTIONS BASED ON
2026/2027 LATEST GUIDELINES
What are the most abundant elements of the human body? - CORRECT ANSWER-Carbon,
Hydrogen, Oxygen, Nitrogen
90% of the human body is composed of just four elements which are: - CORRECT ANSWER-Carbon,
Hydrogen, Oxygen, Nitrogen
The smallest unit of an element that still retains the chemical and physical properties of the element
is called: - CORRECT ANSWER-Atom
Subatomic particles are: - CORRECT ANSWER-Protons (positive), Neutrons (neutral) and Electrons
(negative)
All matter is composed of basic substances called - CORRECT ANSWER-Elements
An atom that tells you how many protons an atom has is called: - CORRECT ANSWER-Atomic
Number
The number of protons and neutrons is called: - CORRECT ANSWER-Mass Number
What is isotope? - CORRECT ANSWER-The same element but different number in protons and
neutrons-Mass Number (protons plus neutrons) minus Atomic Number (number of protons) equals
the number of neutrons.
What is radioactive isotope? - CORRECT ANSWER-Atom whose nucleus undergoes degeneration
and in the process gives off radiation
What is a molecule? - CORRECT ANSWER-Atoms bonded together to form a chemical unit
What is a compound? - CORRECT ANSWER-Combining different atoms
,What is ionic bond? - CORRECT ANSWER-Ions with opposite charges attract
What are ions? - CORRECT ANSWER-Particle that is electrically charged because it has gained or
lost one or more eletrons
What is a covalent bonds? - CORRECT ANSWER-Atoms sharing electrons instead of losing or gain
them
What is polar bond? - CORRECT ANSWER-Bond created when electrons shared by adjacent atoms
are shared unequally
hydrophilic means - CORRECT ANSWER-water-living
Hydrophobic means - CORRECT ANSWER-water-fearing
What is electrolyte? - CORRECT ANSWER-Substances that release ions when puts into water
What is pH? - CORRECT ANSWER-a measure of hydrogen ion concentration
Anterior position - CORRECT ANSWER-a body part is located towards the front (ventral)
Posterior position - CORRECT ANSWER-a body part is located toward the back. (dorsal)
Superior position - CORRECT ANSWER-a body part is located ABOVE another part or towards the
head
Anatomy - CORRECT ANSWER-structure as well as its relationship with other structure
Physiology - CORRECT ANSWER-function of the body
Proximal - CORRECT ANSWER-a body part is CLOSER to a specific point of origin or attachment or
closer to the trunk of the body
,Distal - CORRECT ANSWER-a body part is FARTHER from the specific point of the origin or
attachment
Superficial -external - CORRECT ANSWER-a body part is located near the surface
Deep (internal) - CORRECT ANSWER-a body part is located away from the surface
A sagittal plane (median) cuts the body - CORRECT ANSWER-right down the middle
A frontal plane (coronal) is perpendicular (oppose) so it cuts the body - CORRECT ANSWER-from
ear to ear, from shoulder to shoulder across
A transverse plane cuts the body - CORRECT ANSWER-from the navel in half dividing the superior
from the inferior
A group of similar types of cells that performs a specific function is a(n): - CORRECT ANSWER-
Tissue
What is the mechanism called which brings about an increasing change in the same direction?
Example: child birth - CORRECT ANSWER-positive feedback
The relative consistency of the body's internal environment is called - CORRECT ANSWER-
hemostasis
A group of similar types of cells that performs a specific function is a(n): - CORRECT ANSWER-tissue
A group of two or more types of tissues is a(n): - CORRECT ANSWER-Organ
Structures found WITHIN a cell that perform specific functions are: - CORRECT ANSWER-Organelles
Place the levels of organization in order from least complex to most complex - CORRECT ANSWER-
atom, molecule, organelle, cell, tissue, organ, organ system, organism
, The mitochondrion is an example of a(an) - CORRECT ANSWER-Organelle
The nose is _______ to the chin - CORRECT ANSWER-Superior
The muscles are _____ to the skin - CORRECT ANSWER-Deep
The sternum is anterior or ______ to the heart. - CORRECT ANSWER-Ventral
What is the scientific term for the mouth - CORRECT ANSWER-Oral
Identify the plane that would divide the body into left and right sides - CORRECT ANSWER-Sagittal
The plane that divides a body part into anterior and posterior sections is the ______ plane -
CORRECT ANSWER-Frontal (coronal) plane
The cavity that contains the pleural and abdominopelvic cavities is the ______ cavity - CORRECT
ANSWER-Anterior (ventral)
The cavity that contains the pericardial and pleural cavities is the ______ cavity. - CORRECT
ANSWER-Ventral and thoracic
The vertebral canal and cranial cavity is located within the ______ cavity - CORRECT ANSWER-
Posterior, dorsal cavity
The serous membrane that lines the thoracic cavity is the - CORRECT ANSWER-visceral pleura
The serous membrane covering the heart is the - CORRECT ANSWER-Parietal pericardium
Which of the following is NOT found in the mediastinum? - CORRECT ANSWER-Lungs
