Sublingual space

Sublingual space

Lateral head anatomy detail

Muscles of the pharynx and cheek.

The sublingual space is a potential space in the head.^[1]

Anatomical boundaries

The sublingual space is a space between the mylohyoid muscle and the geniohyoid and genioglossal muscles, containing a number of vessels and nerves, such as the lingual artery and nerve, and the hypoglossal and glossopharyngeal nerve, Wharton's duct and some extrinsic tongue muscle fibers. The sublingual space also contains the sublingual salivary gland. Secretions from the sublingual gland drain through several small excretory ducts in the floor of the mouth; sometimes a more distinctive duct can be recognized, known as Bartholin's duct.

Pathology

Pathology arising from the sublingual gland is rare; however, sublingual gland neoplasms are predominantly malignant and thus important to recognize. People suffering from Ludwig's angina, cellulitis in the floor of the mouth, will commonly have the infection spread to the sublingual space. The submental and submandibular spaces will also be affected by this infection.

References

^ http://www.medcyclopaedia.com/library/topics/volume_vi_2/s/sublingual_space.aspx

Anatomy of torso, digestive system: Gastrointestinal tract, excluding mouth (TA A05.3–7, TH H3.04.02-04, GA 11.1141)

Upper GI

Hypo- pharynx	Piriform sinus spaces: Peripharyngeal space Retropharyngeal space Parapharyngeal space Retrovisceral space Retropharyngeal space Danger space Prevertebral space Pterygomandibular raphe Pharyngeal raphe Buccopharyngeal fascia Pharyngobasilar fascia Pharyngeal muscles

Esophagus	UES LES Esophageal glands Serosa / Adventitia Muscular layer Submucosa Mucosa Muscularis mucosa

Stomach	by region: Greater curvature Lesser curvature Angular incisure Cardia Body Fundus Pylorus Pyloric antrum Pyloric canal by layer: Serosa Muscular layer Pyloric sphincter Submucosa Gastric mucosa Muscularis mucosa Gastric rugae Gastric pits Gastric gland Cardiac glands Fundic glands Pyloric glands Goblet cell

Lower GI

Intestine: small

Layers	Serosa Subserosa Muscular layer Circular folds Submucosa Mucosa Muscularis mucosa Peyer's patches Intestinal villus Intestinal gland

Duodenum	Suspensory muscle Major duodenal papilla Minor duodenal papilla Duodenal cap Duodenojejunal flexure Brunner's glands

Jejunum	no substructures

Ileum	Terminal ileum Ileocecal valve

Intestine: large

Layers	Serosa Subserosa Muscular layer Submucosa Mucosa

Cecum	Vermiform appendix

Colon	ascending colon hepatic flexure transverse colon splenic flexure descending colon sigmoid colon continuous taenia coli haustra epiploic appendix

Rectum	Transverse folds of rectum Rectal ampulla

Anal canal	Anal columns Anal valves Anal sinuses Pectinate line Sphincter ani internus muscle Intersphincteric groove Sphincter ani externus muscle Anus

M: DIG

anat(t, g, p)/phys/devp/enzy

noco/cong/tumr, sysi/epon

proc, drug(A2A/2B/3/4/5/6/7/14/16), blte

1.glossopharyngeal nerve(IX) 2.vagus nerve (X) together w/ 3.internal carotid artery and 4.internal carotid vein in the carotid sheath 5.accessory nerve (XI) 6.hypoglossal (XII) 7.sympathetic trunk and superior cervical ggl of the trunk 8.ascending pharybgeal artery 9. deep cervical lymph nodes