Human Body
On average, how many chromosomes do humans have?
46 chromosomes (23 pairs of chromosomes)
Known as the "sunshine vitamin," this nutrient is vital for bone health
Vitamin D
This condition occurs when blood flow to part of the brain is interrupted.
Stroke
How many chambers does the heart contain?
4
These beneficial bacteria live in the digestive tract.
Probiotics
How many bones does the average adult have?
206 bones
What macronutrient is essential for muscle repair and growth?
Protein
This part of the brain controls balance and coordination.
Cerebellum
This medical term refers to high blood pressure.
Hypertension
This organ is responsible for detoxifying the blood.
Liver
What is the largest internal organ in the human body?
Liver
An essential fatty acid found in salmon and tuna, known to be good for skin and potentially reduce depression.
Omega-3 fatty acid
This nervous system controls involuntary actions like heartbeat and digestion.
Autonomic nervous system
This is the largest artery in the human body.
Aorta
This digestive organ produces insulin.
Pancreas
Which part of the eye controls how much light enters?
Pupil
This mineral is essential for strong bones and teeth.
Calcium
The human brain uses about ____ of the body’s total energy.
20%
This blood type is known as the universal donor.
O-negative
This part of the digestive system absorbs most nutrients.
Small intestine
This hormone helps regulate sleep-wake cycles.
Melatonin
This vitamin is essential for blood clotting.
Vitamin K
This part of the brain is responsible for decision-making and personality.
Frontal lobe
This vein carries oxygen-rich blood from the lungs to the heart.
Pulmonary vein
This acid in the stomach helps break down food and kill bacteria.
Hydrochloric acid