5: Ears Flashcards
Comparing the adult/child ear. A child has a smaller ______, which is more easily occluded during infection.
Nasopharynx
Comparing the adult/child ear. Lymph tissue (tonsils, adenoids) grows rapidly in early childhood. Atrophies after age _____.
12
Comparing the adult/child ear. In a child, small oral cavity and large tongue increase risk of _____.
Obstruction
Comparing the adult/child ear. In a child, smaller nares are more easily _____.
Occluded
Comparing the adult/child ear. In a child, the _____ is long and floppy, vulnerable to swelling with resultant obstruction.
Epiglottis
Comparing the adult/child ear. In a child, the larynx and glottis are _____ in the neck, increasing risk of aspiration.
Higher
Comparing the adult/child ear. In the child, the _____, _____, and _____ cartilages are immature and flexible, causing risk for collapse when the neck is flexed.
Thyroid, cricoid, and tracheal cartilages
Comparing the adult/child ear. In the child, _____ are functional in the airway. This allows for less compensation for edema, spasm, and trauma.
Fewer muscles
Comparing the adult/child ear. In the child, the large amounts of _____ and _____ lining the airway increase the risk for edema and obstruction.
Soft tissue and loosely anchored mucous membranes
_____ are masses of lymphatic tissue in the pharyngeal cavity.
Tonsils
What do tonsils do (2)?
- Filter and protect the respiratory and alimentary tract for pathogenic organisms.
- Play a role in the formation of antibodies protecting against URIs.
T/F Tonsils are larger in children than in adults.
True
The _____ is the tonsil on the posterior wall of the nasopharynx.
Adenoid
_____ primary teeth rest in their places at birth.
20
Primary teeth erupt beginning at _____ months of age.
6
Primary teeth are shed from approximately ages _____.
6-12
Permanent teeth erupt from approximately ages _____.
6-13
Wisdom teeth erupt from ages _____.
17-21
External ear.
Pinna
Contains glands secreting sweat, sebum, and cerumen.
Lubricates hair follicles aiding debris removal.
Functions properly only when patency is maintained.
Pinna/external auditory canal
Separates external from middle ear.
Tympanic membrane
Has a chamber containing ossicles.
Middle ear
Name the ear bones (3).
- Malleus
- Incus
- Stapes
Lies on tympanic membrane; vibrates with sound.
Malleus