Fun, accurate facts about human body systems (circulatory, digestive, skeletal, nervous) for family trivia and school reports.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What organ pumps blood throughout the body?
- The heart
- How many chambers does the human heart have?
- Four
- Name the type of blood vessels that carry blood away from the heart.
- Arteries
- What is the liquid part of blood called?
- Plasma
- About how long is the average adult's entire circulatory system?
- About 60,000 miles
- What name is given to the smallest blood vessels in the body?
- Capillaries
- What type of blood vessels return blood to the heart?
- Veins
- What is the normal resting heart rate range for adults?
- 60 to 100 beats per minute
- What color does blood become when it lacks oxygen?
- Dark red or bluish
- Name the structures that prevent blood from flowing backward in the heart.
- Valves
- Where does most nutrient absorption occur in the digestive system?
- The small intestine
- What organ stores bile to help digest fats?
- The gallbladder
- What is the muscular action that moves food through the digestive tract called?
- Peristalsis
- What enzyme in saliva begins to break down starches?
- Amylase
- How many permanent teeth does a healthy adult have?
- 32 teeth