INTRODUCTION TO HUMAN ANATOMY AND
PHYSIOLOGY 2025 QUESTIONS WITH
ANSWERS
Anatomy - CORRECT ANSWER>>>>The study of the structure/morphology of the human
body and its parts; derived from Greek for 'a cutting up'.
Physiology - CORRECT ANSWER>>>>The study of the functions of the human body and its
parts; derived from Greek for 'relationship to nature'.
Subatomic Particles - CORRECT ANSWER>>>>Protons, neutrons, and electrons that make up
cells.
Atom - CORRECT ANSWER>>>>Tiny particles that make up chemicals (hydrogen, carbon).
Molecule - CORRECT ANSWER>>>>Particles consisting of atoms joined together (water,
glucose).
Macromolecule - CORRECT ANSWER>>>>Large particles consisting of molecules (DNA,
protein).
Organelle - CORRECT ANSWER>>>>Functional part of a cell (mitochondrion, lysosome).
Cell - CORRECT ANSWER>>>>Basic unit of structure and functions (muscle, nerve, or blood
cell).
Tissue - CORRECT ANSWER>>>>Layer or mass of cells with specific function (adipose or
epithelial tissue).
Organ - CORRECT ANSWER>>>>Group of different tissues with a function (heart, kidney,
stomach).
Organ System - CORRECT ANSWER>>>>Group of organs with common function (digestive
system).
Organism - CORRECT ANSWER>>>>Composed of interacting organ systems (human).
Ultrasound - CORRECT ANSWER>>>>High-frequency sound waves that provide images of
soft internal structures; used to obtain sonogram of fetus in the uterus.
Magnetic Resonance Scan (MR) - CORRECT ANSWER>>>>Magnetic field changes alignment
and spin of certain types of atoms; provides high-resolution images of internal structures, such as
the brain.
Homeostasis - CORRECT ANSWER>>>>Maintenance of constant internal environment.
, Cellular differentiation - CORRECT ANSWER>>>>Specialization of cells due to gene
expression.
Feedback loops - CORRECT ANSWER>>>>Homeostatic mechanisms for stability.
Growth - CORRECT ANSWER>>>>Increase in cell number and size and increase in body size.
Reproduction - CORRECT ANSWER>>>>Production of new cells and organisms.
Responsiveness - CORRECT ANSWER>>>>Reaction to a change inside or outside of the body.
Movement - CORRECT ANSWER>>>>Change in body position or location; motion of internal
organs.
Metabolism - CORRECT ANSWER>>>>The sum of all chemical reactions in a living system:
Energy production and nutrient cycling.
Respiration - CORRECT ANSWER>>>>Making energy.
Digestion - CORRECT ANSWER>>>>Breaking down food into usable nutrients for absorption
into the blood
Circulation - CORRECT ANSWER>>>>Moving chemicals and cells through the body fluids
Excretion - CORRECT ANSWER>>>>Removing waste products
Water - CORRECT ANSWER>>>>Most abundant substance in body; environment for
metabolic processes (intracellular and extracellular fluids); required for transport of substances;
regulation of body temperature
Food - CORRECT ANSWER>>>>Provides necessary nutrients to supply energy
Oxygen - CORRECT ANSWER>>>>Releases energy from food
Heat - CORRECT ANSWER>>>>Form of energy; helps maintain body temperature; partly
controls rate of metabolic reactions
Pressure - CORRECT ANSWER>>>>Application of force on an object; atmospheric pressure is
important for breathing; hydrostatic pressure keeps blood flowing
Homeostasis - CORRECT ANSWER>>>>Maintenance of a stable internal environment
Homeostatic Mechanisms - CORRECT ANSWER>>>>Self-regulating systems that monitor
aspects of the internal environment and correct them as needed
PHYSIOLOGY 2025 QUESTIONS WITH
ANSWERS
Anatomy - CORRECT ANSWER>>>>The study of the structure/morphology of the human
body and its parts; derived from Greek for 'a cutting up'.
Physiology - CORRECT ANSWER>>>>The study of the functions of the human body and its
parts; derived from Greek for 'relationship to nature'.
Subatomic Particles - CORRECT ANSWER>>>>Protons, neutrons, and electrons that make up
cells.
Atom - CORRECT ANSWER>>>>Tiny particles that make up chemicals (hydrogen, carbon).
Molecule - CORRECT ANSWER>>>>Particles consisting of atoms joined together (water,
glucose).
Macromolecule - CORRECT ANSWER>>>>Large particles consisting of molecules (DNA,
protein).
Organelle - CORRECT ANSWER>>>>Functional part of a cell (mitochondrion, lysosome).
Cell - CORRECT ANSWER>>>>Basic unit of structure and functions (muscle, nerve, or blood
cell).
Tissue - CORRECT ANSWER>>>>Layer or mass of cells with specific function (adipose or
epithelial tissue).
Organ - CORRECT ANSWER>>>>Group of different tissues with a function (heart, kidney,
stomach).
Organ System - CORRECT ANSWER>>>>Group of organs with common function (digestive
system).
Organism - CORRECT ANSWER>>>>Composed of interacting organ systems (human).
Ultrasound - CORRECT ANSWER>>>>High-frequency sound waves that provide images of
soft internal structures; used to obtain sonogram of fetus in the uterus.
Magnetic Resonance Scan (MR) - CORRECT ANSWER>>>>Magnetic field changes alignment
and spin of certain types of atoms; provides high-resolution images of internal structures, such as
the brain.
Homeostasis - CORRECT ANSWER>>>>Maintenance of constant internal environment.
, Cellular differentiation - CORRECT ANSWER>>>>Specialization of cells due to gene
expression.
Feedback loops - CORRECT ANSWER>>>>Homeostatic mechanisms for stability.
Growth - CORRECT ANSWER>>>>Increase in cell number and size and increase in body size.
Reproduction - CORRECT ANSWER>>>>Production of new cells and organisms.
Responsiveness - CORRECT ANSWER>>>>Reaction to a change inside or outside of the body.
Movement - CORRECT ANSWER>>>>Change in body position or location; motion of internal
organs.
Metabolism - CORRECT ANSWER>>>>The sum of all chemical reactions in a living system:
Energy production and nutrient cycling.
Respiration - CORRECT ANSWER>>>>Making energy.
Digestion - CORRECT ANSWER>>>>Breaking down food into usable nutrients for absorption
into the blood
Circulation - CORRECT ANSWER>>>>Moving chemicals and cells through the body fluids
Excretion - CORRECT ANSWER>>>>Removing waste products
Water - CORRECT ANSWER>>>>Most abundant substance in body; environment for
metabolic processes (intracellular and extracellular fluids); required for transport of substances;
regulation of body temperature
Food - CORRECT ANSWER>>>>Provides necessary nutrients to supply energy
Oxygen - CORRECT ANSWER>>>>Releases energy from food
Heat - CORRECT ANSWER>>>>Form of energy; helps maintain body temperature; partly
controls rate of metabolic reactions
Pressure - CORRECT ANSWER>>>>Application of force on an object; atmospheric pressure is
important for breathing; hydrostatic pressure keeps blood flowing
Homeostasis - CORRECT ANSWER>>>>Maintenance of a stable internal environment
Homeostatic Mechanisms - CORRECT ANSWER>>>>Self-regulating systems that monitor
aspects of the internal environment and correct them as needed
