The nose is the most protruding part of the face and is very important for facial recognition. The nose is also involved in olfaction or the sense of smell. The shape of the nose is determined by the nasal bones and the cartilage of the septum.
The nose has two nostrils, or external openings, that lead to the nasal cavity. The nasal cavity is divided into two cavities by the septum. The septum is a wall of bone and cartilage that separates the two cavities. Each cavity has a roof, a floor, and three walls. The roof and floor are made of bone, and the walls are made of cartilage.
The cavities are lined with a mucous membrane, which contains tiny hairs (cilia) that trap dust and other particles. The mucous membrane also produces mucus, which moistens the air we breathe and traps dust and other particles. Mucus also contains antibodies that help fight infection.
The nose thus has a major role in both respiration and smell. It also filters, warms, and humidifies the air we breathe.
The nose is also involved in speech. The sound of our voice is produced by the vibration of the vocal cords, which are located in the larynx (voice box). The air that passes through the larynx is shaped by the nose and mouth to produce speech.
The nose is a complex structure made up of bone, cartilage, and mucous membranes. It is an important part of the human face and body.
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Advancing Medicine with Food and NutrientsJun 30, 2021 | 910 PagesFood and nutrients have historically served as the cornerstone of medicine, with modern medical practices being built upon these foundations. Unfortunately, over the years there has been a separation between food and medicine due to technical advancements overshadowing natural remedies. The healing powers of food have been overshadowed by...Learn more about Advancing Medicine with Food and Nutrients
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Dr. Ingrid Kohlstadt, MD, MPHJohns Hopkins University Associate, preventative medicine practitioner, epidemiology, author, executive wellness, and MD Consultant.After graduating from the esteemed Johns Hopkins School of Medicine, Dr. Ingrid Kohlstadt joined the Center for Human Nutrition at its leading institution in public health - The Johns Hopkins Bloomberg School of Public Health. Her ambition to improve the health and well-being of children and their families across...Learn more about Dr. Ingrid Kohlstadt, MD, MPH