Digestive
What is the primary function of the digestive system?
To break down food and absorb nutrients into the body.
What is the main function of the circulatory system?
To transport oxygen, nutrients, and waste throughout the body.
What is the main organ of the respiratory system?
Lungs
How do hormones travel throughout the body?
Bloodstream
Circulatory - What's the blood vessel that carries dexoygenated blood back to the heart?
Veins
What is the role of the stomach in digestion?
Breaks down food using stomach acid & muscle contractions
Name the three main types of blood vessels in the circulatory system.
Name the three main types of blood vessels in the circulatory system.
What gas is inhaled by humans?
They inhale oxygen
What is the primary function of the endocrine system?
To produce and release hormones that regulate body functions.
Why do you yawn?
Yawning helps increase oxygen intake when the brain detects low oxygen levels.
Which organ is responsible for absorbing nutrients into the bloodstream?
Small intestine
What part of the circulatory system carries oxygen-rich blood from the heart to the body?
Arteries
What gas do humans exhale?
They exhale Carbon Dioxide (CO₂)
What does the adrenal gland respond to?
Stress & (produces adrenaline).
Which body system controls growth and development?
Endocrine System
What is the function of the large intestine?
Absorbs water and produces waste to be eliminated
What type of blood cells help fight infections?
White blood cell
What muscle contracts to pull air into the lungs and relaxes to push air out?
The diaphragm
What organ releases insulin, which controls blood sugar?
The pancreas.
What are examples of nutrients absorbed into the bloodstream
carbohydrates, proteins, fats, vitamins & minerals
What's the name of the organ that food passes through between the mouth and the stomach?
Esophagus
What is the name of the biggest artery in the body?
Aorta
Where does oxygen exchange happen between lungs and the bloodstream?
Through the alveoli, which exchange gases with capillaries.
What gland is known as the "master gland" because it controls other glands?
Pituitary Gland
What are glands?
organs in the body that produce and release chemical substances such as hormones, sweat, saliva, or digestive enzymes.