CH 17 Nose, Mouth, Throat

Question 1

Structure + Function of Nose

Answer 1

• first segment of respiratory system
• sensory organ for smell
• CN I (olfactory)
• sinues (lined with ciliated mucous membranes)
  
  • maxillary, front, ethmoid, sphenoid

Question 2

Structure + Function of Mouth

Answer 2

• first segment of digestive system AND airway to respiratory system
• function: taste

Tongue functions:

- mastication
- swallowing
- teeth cleansing
- speech formation

Salivary Gland functions:

• moisten/lubricate food
• start digestion
• clean/protect mucosa

Question 3

Structure + Function of Throat

Answer 3

Oropharynx and Nasopharynx (above oropharynx and behind nasal cavity)

Question 4

Developmental Consideration for Nose, Mouth, and Throat

Answer 4

Infant/Children
- salivation starts at 3 months

Pregnant women
- stuffy sinuses and epistaxis from increased vascularity

Aging Adult

• nose may be more prominent (loss of subq fat)
• decrease smell after 60 years
• decrease in salivary secretion (at risk for undernutrition b/c loss of desire to eat since everything starts to taste the same)

Question 5

Collecting Objective Data: Nose, Mouth, Throat (inspect external nose)

Answer 5

midline position and nasal flaring

Question 6

Collecting Objective Data: Nose, Mouth, Throat (inspect internal nose)

Answer 6

color/discharge, masses/lesions, swelling of turbinates (made of bone, covered by mucosa/ regulate airflow)

Question 7

Collecting Objective Data: Nose, Mouth, Throat (inspect sinuses)

Answer 7

palpate frontal and maxillary sinus

percuss for tenderness (seen less often than palpation)

Question 8

Collecting Objective Data: Nose, Mouth, Throat (inspect mouth)

Answer 8

mucosa and palate pink
lips smooth w/o lesions
pharynx pink

Question 9

Collecting Objective Data: Nose, Mouth, Throat (inspect throat)

Answer 9

grade tonsils 0-2 (0 = no inflammation)
assess position of uvula (should be midline)
CN XII (hypoglossal) - for movement of tongue