The Nose is a common site of foreign Bodies.

http://en.wikipedia.org/wiki/Human_nose

The nose is a common site of foreign bodies. The nose is susceptible to frostbite. Nasal flaring is a sign of respiratory distress that involves widening of the nostrils on inspiration.

Clinical Significance.

http://en.wikipedia.org/wiki/Human_nose

One of the most common medical conditions involving the nose are nosebleeds (in medicine: epistaxis). Most of them occur in Kiesselbach's area (synonym: Little's area). Nasal congestion is a common symptom of infections or other inflammations of the nasal lining (rhinitis), such as in allergic rhinitis or vasomotor rhinitis (resulting from nasal sprayabuse). Most of these conditions also cause anosmia, which is the medical term for a loss of smell. This may also occur in other conditions, for example following trauma, in Kallmann syndrome or Parkinson's disease.

Structure.

http://en.wikipedia.org/wiki/Human_nose

The nasal root is the top of the nose, forming an indentation at the suture where the nasal bones meet the frontal bone. The anterior nasal spine is the thin projection of bone at the midline on the lower nasal margin, holding the cartilaginous center of the nose.Adult humans have nasal hairs in the anterior nasal passage.

Illustration of Nose Diagram.

http://en.wikipedia.org/wiki/Human_nose

Sneezing is usually caused by foreign Particles.

http://en.wikipedia.org/wiki/Human_nose

 Sneezing is usually caused by foreign particles irritating the nasal mucosa, but can more rarely be caused by sudden exposure to bright light (called the photic sneeze reflex) or touching the external auditory canal. Sneezing is a means of transmitting infections because it creates aerosols in which the droplets can harbour microbes.

The nose has an area of specialised Cells.

http://en.wikipedia.org/wiki/Human_nose

The nose has an area of specialised cells which are responsible for smelling (part of the olfactory system). Another function of the nose is the conditioning of inhaled air, warming it and making it more humid. Hairs inside the nose prevent large particles from entering the lungs.

Human Nose.

http://en.wikipedia.org/wiki/Human_nose

The visible part of the human nose is the protruding part of the face that bears the nostrils. The shape of the nose is determined by the ethmoid bone and the nasal septum, which consists mostly of cartilage and which separates the nostrils. On average the nose of a male is larger than that of a female.