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.
Description. Function. Nose and Nasal Cavity. The nose is the primary opening for the respiratory system, made of bone, muscle, and cartilage. The nasal cavity is a cavity within your nose filled with mucus membranes and hairs. The nose is used to inhale air into the body.he three major parts of the respiratory system are the airways, the lungs, and the muscles of respiration. This article will explain anatomy of the respiratory system, detailing the organs involved as well as the things that can go wrong.