This organ connects the mouth to the stomach.
What is the esophagus?
This organ connects the brain with the rest of the nervous system.
What is the spinal cord?
A group of different tissues that has a specific function.
What is an organ?
This is the body's defense against disease-causing organisms.
What is the immune system?
These blood cells are responsible for transporting oxygen and carbon dioxide.
What are red blood cells?
This food group incudes grains and is the primary source of energy for the body.
What are carbohydrates?
This is the proper term for a nerve cell.
What is a neuron?
A group of similar cells that perform the same function.
What is a tissue?
These proteins destroy certain types of invaders.
What are antibodies?
These pipelines bring blood back to the heart.
What are veins?
This food group includes fats and oils.
What are lipids?
These are signals to which an organism responds.
What are stimuli?
This bone is the longest in the body.
What is the femur?
This reaction occurs when the body is sensitive to certain substances.
What are allergies (allergic reactions)?
These thin-walled blood vessels have permeable walls.
What are cappillaries?
This type of acid is important in the composition of proteins.
The transparent protective covering of the eye.
What is the cornea?
These are the three types of muscles
What are skeletal, smooth, and cardiac?
This state occurs when the body has resistance to a disease-causing organism or harmful substance.
What is immunity?
These cell fragments are responsible for blood clotting.
What are platelets?
This organ creates bile, an important digestive substance.
What is the liver?
These are the three parts of the brain in order from smallest to largest.
What are the medulla, cerebellum, and cerebrum?
This small bone is directly above the sternum.
What is the manubrium?
This is considered the body's "second line of defense" against invading organisms.
What is Inflammatory Response?
This large blood vessel takes blood from the heart to the lungs.
What is the pulmonary artery?