Nose and Sinuses Flashcards
[True or False]
Food is better appreciated with smell.
True
The aroma of food enhances apetite.
How many different odors can the sense of smell sense?
2,000 - 4,000 different odors
When does the embryo develops an understanding of smell?
42 days of the life
How does an embryo become familair with the mother’s scent?
Amniotic fluid
The mother’s amniotic fluid passes through their nostrils and is captured by the scent receptors, they become familiar with their mother’s scent.
This process draws the molecules up to the smell receptors for analysis and is stored in our brains.
Sniffing
[True or False]
The brain can recreate distict smells, odors, or scents without an odor or stinulus.
True
Is a triangular projection of bone and cartilage situated midline on the face.
Nose
What is the first and only visible organ of the respiratory system?
Nose
It asists in respiration, olfaction, conditioning of inspired air and immune defense.
Nasal cavity
Enumerate the steps or passage of air during inspiration.
Nostrils (nares) -> Conchae -> Nasal cavity -> Trachea -> Lungs
This is where air is filtered, warmed and moistened before it moves toward the trachea and lungs.
Nasal Cavity
What special structure present in the respiratory tract that air is filtered through?
Cilia
True or False
The nose is consists of external and internal structure.
True
Is on the superior aspect of the nose, medial to each orbit of the eyes.
Bridge ofthe Nose
Is inferior to the bridge and free ofattachment to the face.
Tip of the Nose
The two oval external openings at the base of the nose.
Nares or Nostrils
What two structures surround the nares?
Columella and Alar cartilage
What is the continuation of the columella dividing the nose into the right and left sides?
Nasal septum
What is the medical term for nosebleeds?
Epistaxis
What is the vascular area on the nasal septum and common site of nosebleeds (epistaxis)?
Kiesselbach’s plexus
This structure helps clean and filter inspired air and has redder appearance than the oral mucosa.
Nasal mucosa
What structure of the nose add large amounts of water-inspired air through evaporation from its surface?
Nasal mucosa
These structures divide each side of the cavity and are rich in glands and have an abundant blood supply.
Conchae or Turbinates
What are the three conchae or turbinates?
Superior, middle and inferior
What are these bony projections, covered with nasal mucosa, add surface area for cleaning, moistening, and warming air entering the respiratory tract?
Conchae or Turbinates
What structure of the nose and sinuses traps fine dust particles?
Mucous covering
What structure of the nose and sinuses kill most of the bacteria?
Lysosomes
What structures of the nose collect and transport the mucus, bacteria, and the coarser particles (debris) to the pharynx to be swallowed or expectorated?
Tiny hairs of the nose
What are these tiny hair of the nose?
Cilia
What contains immunoglobulins and enzymes that defend against inflammation and infection?
Mucus
What comes after nasal cavity?
Nasopharynx