Nervous System
This part of the brain controls thought and memory.
What is the cerebrum?
This organ pumps blood throughout the body.
What is the heart?
These tiny finger-like structures absorb nutrients.
What are villi?
These tiny air sacs are found in the lungs.
What are alveoli?
Question: This body system protects organs and supports the body.
What is the skeletal system?
The brain and spinal cord make up this nervous system.
What is the central nervous system?
This substance in red blood cells carries oxygen.
What is hemoglobin?
Most nutrients are absorbed in this organ.
What is the small intestine?
This muscle contracts during inhalation.
What is the diaphragm?
Question: This type of muscle is found only in the heart.
What is cardiac muscle?
This structure carries messages between the brain and body.
What is the spinal cord?
This substance in red blood cells carries oxygen.
What are capillaries?
The large intestine mainly absorbs this.
What is water?
The respiratory system exchanges oxygen and this gas.
What is carbon dioxide?
Question: These cells release antibodies to help fight pathogens.
What are white blood cells?
These are the basic nerve cells of the body.
What are neurons?
These tiny blood vessels allow materials to move between blood and cells.
What are capillaries?
This is the first stage of digestion.
What is ingestion?
These tiny structures filter blood in the kidneys.
What are nephrons?
Question: This flexible tissue is found in joints and ears.
What is cartilage?
The cerebellum helps regulate posture and this ability.
What is balance?
Oxygen-poor blood enters this chamber of the heart first.
What is the right atrium?
Name all four stages of digestion.
What are ingestion, digestion, absorption, and elimination?
This structure inside the nephron filters blood.
What is the glomerulus?
Explain why skeletal muscles must work in pairs.
Because muscles can only pull, one muscle contracts while the other relaxes to move bones.