Conduction and Resp . zone anatomy Flashcards
What two structures play a dual function in respiratory and alimentary pathway
Mouth and pharynx
Air, food and liquid all pass through a common passage called
Oropharynx
What are the 4 paranasal sinus and their various locations
Frontal sinus - above the eye
Maxillary sinus - below the eye( maxillary region)
Ethmoidal sinus/cells - between the eye
Sphenoidal sinus - behind the eye
Mention four functions of the nose
- Airway for respiration
- Moistens and warns entering air
- Filters air
- Houses smell receptors
- Serves as a resonating chamber for speech
What structure divides the nasal cavity into the nasal vestibule and proper nasal cavity
Limen nasi
What is the choanae of the nose?
Posterior nasal aperture where the nasal cavity is continuous with the nasopharynx . It is also know as the INTERNAL NOSTRIL
What forms the medial wall of the nasal cavity
The nasal septum
What constitutes the roof of the nasal cavity
The cribiform plate of the ethmoid bone with bundles of olfactory nerves passing through the cribiform foramen of the cribiform plate.
What form the lateral wall of the nasal cavity
The 3 conchae ie
- Superior
- Middle
- Inferior
What structures are found beneath the 3 conchae. Group them according
Superior conchae - sphenoethmoidal recess, posterior ethmoidal cells, sphenoidal sinus
Middle conchae - ethmoidal bulla, frontal sinus, maxillary sinus, semilunar hiatus, middle ethmoidal cells, anterior ethmoidal cells, uncinate process
Inferior concha - nasolacrimal duct
What is the other name of the concha and mention it’s function
Turbinate
For filtration, heating/ warming of air (32-34 degree Celsius) and for humidification.
Which of the paranasal sinus is the largest
Maxillary sinus ( Also called Antrum of highmore)
What are the two mucous membranes that line the proper nasal cavity
- Olfactory mucosa ( pale or yellowish tint and less abundant)
- Respiratory mucosa( more abundant and pink or red in color)
Which mucosa of the proper nasal cavity has pseudostratified ciliate columnar epithelium that secrets mucus and is rich in blood supply
Respiratory mucosa
What is the anatomical position of the larynx
Opposite the 3rd, 4th, 5th and 6th cervical vertebrae . Superiorly attached you the hyoid bone and inferiority continues with the trachea
What structure runs laterally to the larynx
The carotid sheath
What are the 3 main functions of the larynx
- Voice production
- Controls air in and out of trachea
- Acts as switching mechanism to route air and food into the proper channel.
Mention the cartilages that form the larynx
9 cartilages
- Epiglottic cartilage(1)
- Thyroid cartilage (1)
- Cricoid cartilage (1)
- Arytenoid cartilages (2)
- Cuneiform cartilages (2)
- Corniculate cartilages(2)
In what actions do the larynx ascend
Swallowing, and high pitch of voice
What structure of the thyroid cartilage serves as the attachment point of the thyrohyoid ligament to the hyoid bone
Superior corny
The cricothyroid joint is an articulation between which two structures
Inner aspect of the inferior Cornu and the lateral side of the broad lamina of the cricoid cartilage
What account for the larger laryngeal prominence in males than in female and what are the angles of inclination of the lamina for both gender
Endocrinological effect. Ie the level of testosterone in males accounts for prominent Adam’s apple. In females, the lamina are inclined at 120 degrees and in males 90 degrees.
What two conditions account for the production of voice sound
- Length of the vocal folds
- Tension of the vocal folds
The longer the length of vocal fold, the slower the vibration and hence production of deep voice
The more tensed the fold, the higher the pitch of sound
What accounts for the alternating high and low pitch sound in adolescent boys
Inability to control longer vocal folds
What account for the loudness of sound. Explain in relation to vocal folds
The greater the pressure of exhaled air, the stronger the vibration of the vocal fold and the louder the sound.
Great force———strong vibration———loud sound
Whispering causes the vocal fold to move. True or false
False. Vocal folds do not move gm when we whisper
Which structure of the respiratory system amplifies Sound by acting as a resonating chamber
Pharynx
What structure are responsible for pronunciations
Pharynx, tongue, soft palate and lips
What is the name given to the region between the tongue and the epiglottis
Vallecula
The false vocal fold is also called
The vestibular fold( ventricular fold)
The opening of the larynx is called
Superior laryngeal aperture/ laryngeal inlet or aditus
What constitutes the vocal fold
Vocal ligament + vocal is+ mucous membrane
What constitutes the vestibular fold
Vestibular ligament + mucous membrane
What name is given to the vocal opening
Rima glottidis