Back to front! The prefrontal cortex is the last to develop at around age 25.
Breathing starts at the nose and mouth. You inhale air into your nose or mouth, and it travels down the back of your throat and into your windpipe, or trachea. Your trachea then divides into air passages called bronchial tubes.
For your lungs to perform their best, these airways need to be open during inhalation and exhalation and free from inflammation or swelling and excess or abnormal amounts of mucus.
The LungsAs the bronchial tubes pass through the lungs, they divide into smaller air passages called bronchioles. The bronchioles end in tiny balloon-like air sacs called alveoli. Your body has over 300 million alveoli.
The alveoli are surrounded by a mesh of tiny blood vessels called capillaries. Here, oxygen from the inhaled air passes through the alveoli walls and into the blood.
After absorbing oxygen, the blood leaves the lungs and is carried to your heart. Your heart then pumps it through your body to provide oxygen to the cells of your tissues and organs.
As the cells use the oxygen, carbon dioxide is produced and absorbed into the blood. Your blood then carries the carbon dioxide back to your lungs, where it is removed from the body when you exhale.
Answer:
The correct answer would be B. A compound :)
The leading source of saturated fat in the American diet is ---> Regular Cheese (8.5)
The table then goes down in this order :
- Pizza (5.9)
- Grain-based desserts (5.8)
- Dairy desserts (5.6)
- Chicken and chicken mixed dishes (5.5)
- Sausage, franks, bacon and ribs (4.9)
- Burgers (4.4)
- Mexican mixed dishes (4.1)
- Beef and beef mixed dishes (4.1)
- Reduced fat milk (3.9)
- Pasta and pasta dishes (3.7)
- Whole milk (3.4)
- Eggs and egg mixed dishes (3.2)
- Candy (3.1)
- Butter (2.9)
- Potato/corn/ other chips (2.4)
- Nuts/seeds and nut/ seed mixed dishes (2.1)
- Fried white potatoes (2.0)
