Search results
Results from the WOW.Com Content Network
The nasolabial folds, commonly known as "smile lines" [1] or "laugh lines", [2] [self-published source] are facial features. They are the two skin folds that run from each side of the nose to the corners of the mouth. They are defined by facial structures that support the buccal fat pad. [3] They separate the cheeks from the upper lip.
The nasal mucosa lines the nasal cavity.It is part of the respiratory mucosa, the mucous membrane lining the respiratory tract. [1] [2] The nasal mucosa is intimately adherent to the periosteum or perichondrium of the nasal conchae.
The mouth plays an important role in eating, drinking, and speaking. Mouth breathing refers to the act of breathing through the mouth (as a temporary backup system) if there is an obstruction to breathing through the nose, which is the designated breathing organ for the human body. [8]
This appears as a clear, colourless liquid. [1] Aldroubi sign "The liquid in CSF rhinorrhea is thin and clear, and an affected person might notice a sweet or salty taste due to the increased glucose and electrolytes present in cerebrospinal fluid so some affected toddlers and young children tend to lick their nose frequently".
The mean number of alveoli in a human lung is 480 million. [11] When the diaphragm contracts, a negative pressure is generated in the thorax and air rushes in to fill the cavity. When that happens, these sacs fill with air, making the lung expand. The alveoli are rich with capillaries, called alveolar capillaries.
Rhinorrhea (American English), also spelled rhinorrhoea or rhinorrhœa (British English), or informally runny nose is the free discharge of a thin mucus fluid from the nose; [1] it is a common condition. It is a common symptom of allergies or certain viral infections, such as the common cold or COVID-19.
However, milk and saliva in one's mouth mix to create a thick liquid that can briefly coat the mouth and throat. The sensation that lingers may be mistaken for increased phlegm. Drinking eight glasses (2–3 liters) of water a day is not needed to maintain health. The amount of water needed varies by person, weight, diet, activity level ...
The mouth is the only place in the body which provides the sensation of taste. Due to these unique physiological features, the oral mucosa must fulfil a number of distinct functions. Protection: One of the main functions of the oral mucosa is to physically protect the underlying tissues from the mechanical forces, microbes and toxins in the ...