Head, Ears, Nose, Throat Flashcards
(102 cards)
Differences in head
Cranial bones are soft and separated by sutures, sutures and fontanels permit skull expansion to accommodate brain growth, skull molding from birth through vaginal canal
What are differences in adults vs children
Changes in Eustachian tubes, obligate nasal breathers, small airway and enlarged tonsils
When do sutures ossify
6-18 years. Higher risk of head fracture under the age of 6
When do fontanels close
Posterior 2 months, anterior 2 years
What does skull molding from birth through vaginal canal allow for
Skull bones to shift and overlap , and normal shape and size resumed within days
Male adolescent facial changes
Nose and thyroid cartilage enlarge and facial hair appears
a serious condition that occurs when the body produces too much of the hormones that control growth.
Acromegaly
A rare genetic disorder characterized by premature joining of certain skull bones during development which has an impact on the shape of the head and face. Features include poor vision, hypoplasia of maxilla an impaired hearing. Not symmetrical
Craniofacial dystosis
Fetal alcohol syndrome facial characteristics
Small eye openings, smooth philtrum, and thin upper lip
a vertical groove in the middle area of the upper lip
Philtrum
Characteristics of Down syndrome
No nasal bridge, hypocanthal fold, hyperglossia
Differences in ears
Inner ear development in the first trimester, external auditory canal in infants shorter than in adults, Eustachian tubes in infants wider, shorter, more horizontal than in adults, salivation increased by 3 months (swallowing)
When does inner ear development start
First trimester
What are Eustachian tubes like in infants
Wider, shorter, more horizontal than in adults
When is salvation increased by
3 months, swallowing
When do sinus problems usually start
Around high school years
Can a 5 day old get a sinus infection
No! Maxillary and ethmoid sinuses are present at birth but they are very small
What sinuses are present at birth
Maxillary and ethmoid sinuses are present at birth but they are very small
What sinuses begin to develop at about 3 years of age and complete development in late adolescence
Frontal and sphenoid sinuses
When do permanent teeth begin forming in the jaw by
6 months of age
How many teeth usually erupt between 6 and 24 months of age
20 deciduous teeth
When does eruption of permanent begin? When is it completed?
Begins about 6 years and completed around 14-15 years
When should first dental visit be in most cases
3 years
Neural tube defect with protrusions of brain and membranes that cover it though openings in the skull
Encephalocele