body system Flashcards
Q: What are the levels of organization in the body from smallest to largest?
A: Organelle, cell, tissue, organ, organ system.
Q: Where does mechanical digestion occur?
A: In the mouth (teeth chewing) and stomach (churning).
Q: What is peristalsis?
A: Rhythmic muscle contractions that move food through the digestive system.
Q: Where is food absorbed into the blood?
A: In the villi of the small intestine.
Q: What is the function of the respiratory system?
A: To take in oxygen and remove carbon dioxide.
Q: What is the function of the circulatory system?
A: To transport oxygen, nutrients, and waste products through the blood.
Q: What are the three types of blood vessels?
A: Arteries, veins, and capillaries.
Q: What are antagonistic muscles?
A: Pairs of muscles that work opposite each other (e.g., biceps and triceps).
Q: What is the function of the kidneys?
A: To filter waste from the blood and produce urine.
