Causes of Pale Skin, Pallor, Paleness, Grey Skin. Pallor, aka pale skin, paleness, grey skin, is the loss of color in comparison to your normal skin color. Pale skin is not a concern if your skin paleness is caused by a fair complexion or lack of sun exposure. However, paleness may be a health concern if your usual skin pigment goes grey.
The inside of your nose is lined with a moist, thin layer of tissue called a mucous membrane (say: MYOO-kus MEM-brayne). This membrane warms up the air and moistens it. The mucous membrane makes mucus, that sticky stuff in your nose you might call snot.
To understand what boogers are, you need to know about mucus (say: MYOO-kus). Mucus is the sticky, slimy stuff that's made inside your nose, airways, and even your digestive tract. If you're like lot of kids, you have another name for nose mucus: snot. Your nose and sinuses make about a quart (about 1 liter) of snot every day. Mucus has a pretty important job â it keeps the lining of your nose moist and warms the air you breathe. Mucus also protects the lungs. When you breathe in air through your nose, it contains lots of tiny things, like dust, dirt, germs, and pollen.