Pharynx

Pharnyx

• What

• Location

  • Dorsally

  • Ventrally

  • laterally

• Function

What: Funnel shaped chamber

Location: Behind mouth and continues into esophagus

• Dorsally: Base of skull and first couple cervical vertebrae

• Ventrally: Larynx

• Laterally: Pterygoid muscles, mandible and dorsal part of hyoid apparatus

Function: Respiratory and alimentary function

What are the 3 parts of the pharynx

• Nasopharynx

• Oropharynx

• Larynogopharynx

Nasopharynx

• Function

• Communicates with

• Mucosa posses which epithelium

Function: Convey air only

Communicates with: Middle ears through auditory tubes

Mucosa posses: Psedostratifed columnar cilitated epithelium with globet cells

Oropharynx

• Size

• Function

• Lateral walls supported by

• Site of

Size: Narrow

Function: Limits size of food

Lateral walls supported by: Fascia

Site of: Palatine tonsils

Larynogopharynx

• Size

• Function

Size: Largest part, wide in front

Function: Joins into esophagus

How many openings are there in the pharynx and where?

7 openings

• Nose = 2

• Mouth = 1

• Larynx = 1

• Esophagus = 1

• Ear = 2