Everyone has one nostril that is larger than the other.
Did you know?
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Did you know?
Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
HEART STRUCTURE 1
Hydronephrosis and hydroureter resulting from a stone in the ureter.
Five Areas for listening to the heart
Valves of the heart
The Peritoneum
All human organ systems and their functions (Part 1)