Structural Hierarchy
All matter in the universe, including the human body, is fundamentally made up of these.
What are chemical elements?
These specific macronutrients include sugars and starches, serving as the body's primary energy fuel.
What are carbohydrates?
This term encompasses the absolute sum of every chemical reaction taking place inside a living organism.
What is metabolism?
This term describes the body's ongoing ability to maintain a stable, balanced internal environment.
What is homeostasis?
In anatomical directional terms, this word is frequently used as a synonym for "inferior" or toward the tail.
What is caudal?
These specialized, microscopic structures operate inside a cell to execute specific tasks.
What are organelles?
This term describes any atom or molecule that has gained or lost electrons, giving it an electrical charge.
What is an ion?
This systematic way of thinking and investigating allows humans to explore the physical world in an orderly way.
What is science?
This is any internal or external factor that disrupts the body's steady state and forces a homeostatic reaction.
What is a stressor?
If an anatomical structure is situated closer to the midline of the body, it is given this directional description.
What is medial?
When specific atoms and molecules combine, they form this basic living unit of structure and function.
What is a cell?
These complex macromolecules are built from smaller structural subunits called amino acids.
What are proteins?
This destructive phase of metabolism breaks down larger molecules to release vital energy.
What is catabolism?
In this type of feedback system, a deviation from the norm triggers a chain of events that intensifies or amplifies the original change.
What is a positive feedback system?
This specific anatomical plane slices the body horizontally into upper (superior) and lower (inferior) portions.
What is the transverse plane?
This level of organization consists of a group of similar cells working together to perform a specialized role.
What is a tissue?
This specific nucleic acid stores the master genetic blueprint within encoded nucleotide sequences.
What is DNA?
This constructive phase of metabolism uses energy to synthesize and build complex molecules.
What is anabolism?
While anatomy focuses on the body's physical structure, this branch of science investigates how those parts function.
What is physiology?
If a surgeon makes an incision in the "costal" region of a patient, they are operating near this part of the skeleton.
What are the ribs?
This higher structural level is achieved when different tissues combine to form distinct units like the heart, brain, or stomach.
What are organs?
This specific, fluid-filled internal cavity is dedicated entirely to surrounding and protecting the heart.
What is the pericardial cavity?
Humans are classified as vertebrates because they possess both a vertebral column and a protective brain case.
What is a cranium?
While anatomy looks at the big picture, this science focuses on the body's physical structure.
What is anatomy?
This directional term describes a structure that is closer to the trunk of the body or a point of attachment compared to another part.
What is proximal?