《Four simple steps to make your nose look more attractive》发表时间:2020-08-11 11:35 The nose is the starting part of the breathing passage and the olfactory organ. It consists of three parts: external nose, nasal cavity and paranasal sinus. It is composed of nasal bone, nasal cartilage, nasal muscle and covered skin. The nasal cavity is divided into left and right cavities by the nasal septum, with nostrils in the front communicating with the outside world and nasopharynx in the back. What is a nose? The anterior part of the nasal cavity is the nasal vestibule, which is covered with skin and has nasal hair, which plays a filtering role and is prone to furuncle. The rear part is the natural nasal cavity, lined with mucous membranes, can be divided into the olfactory part and the respiratory part, has the role of smell and warm moist, purify the inhaled air. The paranasal sinuses are located in the skull around the nasal cavity and are gas-filled cavities that communicate with the nasal cavity, and their mucous membranes are connected with the nasal mucosa. When the nasal cavity is inflamed, it can spread to the paranasal sinuses, causing sinusitis. The paranasal sinuses are involved in humidifying and warming the inhaled air, and play a resonant role in pronunciation. External nose: The external nose is the part of the face that protrudes from the face and is supported by bone and cartilage and covered with skin. The outer nose is shaped like a triangular cone, protruding from the face and vulnerable to trauma. The upper end is narrow, and the upper part is between the eyes, called the nose. The high protruding part of the lower end is called the tip of the nose. The bulge is called the bridge of the nose, and the two sides of the bridge of the nose are the back of the nose. The part of the nose that rises outward on either side of the tip is called the alar. The skin at the tip and alar of the nose is thicker, rich in sebaceous glands and sweat glands, and is closely connected with deep subcutaneous tissue and pericperiosteum, which is prone to furunculosis. Therefore, when inflammation occurs, local swelling compresses nerve endings, which can cause severe pain. |