What is nasopharynx and its function?
Nasopharynx: It is situated in the space between the back of the nose and soft palate. It is continuous with the nasal cavity and forms the upper part of the respiratory system. It plays an important role in transferring air from the nose to the larynx.
What is the anatomy and physiology of nose?
The external nose consists of paired nasal bones and upper and lower lateral cartilages. Internally, the nasal septum divides the nasal cavity into a right and left side. The lateral nasal wall consists of inferior and middle turbinates and occasionally a superior or supreme turbinate bone.
What is the anatomy of the nasal cavity?
Anatomy of the nasal cavity The nasal cavity extends from the external opening, the nostrils, to the pharynx (the upper section of the throat), where it joins the remainder of the respiratory system. It is separated down the middle by the nasal septum, a piece of cartilage which shapes and separates the nostrils.
What are the features of nasopharynx?
The nasopharynx represents the most superior portion of the pharynx, bounded superiorly by the skull base and inferiorly by the soft palate. The nasopharynx connects the nasal cavity to the oropharynx and contains the Eustachian tube openings and adenoids.
What is the main function of nose?
Nose, the prominent structure between the eyes that serves as the entrance to the respiratory tract and contains the olfactory organ. It provides air for respiration, serves the sense of smell, conditions the air by filtering, warming, and moistening it, and cleans itself of foreign debris extracted from inhalations.
What is the main function of the nostrils?
A nostril (or naris /ˈnɛərɪs/, plural nares /ˈnɛəriːz/) is one of the two channels of the nose, from the point where they bifurcate to the external opening. In birds and mammals, they contain branched bones or cartilages called turbinates, whose function is to warm air on inhalation and remove moisture on exhalation.
What are the 3 major parts of the respiratory system?
These are the parts:
- Throat (pharynx)
- Voice box (larynx)
- Windpipe (trachea)
- Large airways (bronchi)
- Small airways (bronchioles)
What is the nasal septum made of?
The Septum. The nasal septum is the key midline support structure of the nose and is composed of the quadrilateral cartilage, perpendicular plate of the ethmoid bone, and vomer bone (Figure 6-4). The anterior septal cartilage develops as the unossified portion of the perpendicular plate of the ethmoid.
Where is lungs in our body?
The lungs are located on either side of the breastbone in the chest cavity and are divided into five main sections (lobes). The lungs are responsible for removing carbon dioxide from the blood and adding oxygen to it. The heart and lungs work together to do this.
What is the structure and function of the lungs?
The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.
Where is the nasopharyngeal located?
The nasopharynx is the space above the soft palate (roof of the mouth) at the back of the nose.
What does the nasopharynx do?
The nasopharynx is the space above the soft palate at the back of the nose and connects the nose to the mouth, which allows a person to breathe through the nose. The soft palate separates the nasopharynx from the oropharynx, which sits just below the soft palate.
What is the function of the nasopharynx?
The nasopharynx is found between the base of the skull and the soft palate. It is continuous with the nasal cavity, and performs a respiratory function by conditioning inspired air and propagating it into the larynx.
What does nasopharyngeal mean?
Definition of nasopharyngeal. : of, relating to, or affecting the nose and pharynx or the nasopharynx.
What are the divisions of the pharynx?
There are three main divisions of the pharynx: the oral pharynx, the nasal pharynx, and the laryngeal pharynx. The latter two are airways, whereas the oral pharynx is shared by both the respiratory and digestive tracts. On either side of the opening between the mouth cavity and the oral pharynx is a palatine tonsil,…