Pharyngobasilar fascia

Pharyngobasilar fascia is a fibrous membrane in the human body that forms the superior part of the outer layer of the pharynx. It is also known as the pharyngeal aponeurosis.

Etymology

The term "Pharyngobasilar" is derived from two Greek words: "pharynx" meaning throat, and "basilar" meaning base. The term "fascia" is derived from the Latin word "fascia" meaning band or bandage. Thus, the term "Pharyngobasilar fascia" can be translated as the band or bandage at the base of the throat.

Anatomy

The Pharyngobasilar fascia is a thick, fibrous membrane that forms the superior part of the outer layer of the pharynx. It is attached above to the base of the skull, specifically to the pharyngeal tubercle on the bottom of the occipital bone, and to the petrous part of the temporal bone. It is continuous with the buccopharyngeal fascia, which forms the middle layer of the outer layer of the pharynx.

Function

The Pharyngobasilar fascia serves as a supportive structure for the pharynx, helping to maintain its shape and position in the neck. It also provides a surface for the attachment of the muscles of the pharynx, including the superior pharyngeal constrictor muscle, the middle pharyngeal constrictor muscle, and the inferior pharyngeal constrictor muscle.

Clinical significance

Abnormalities or damage to the Pharyngobasilar fascia can lead to problems with swallowing, speech, and breathing. It can also contribute to conditions such as sleep apnea and dysphagia.

See also

• Pharynx
• Fascia
• Superior pharyngeal constrictor muscle
• Middle pharyngeal constrictor muscle
• Inferior pharyngeal constrictor muscle

References

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