- May 2, 2026The cisterna magna (cerebellomedullary cistern) is the largest subarachnoid cistern, located between the inferior surface of the cerebellum, the dorsal…
- May 2, 2026The parotid space is the compartment within the parotid fascia containing the parotid gland, the extratemporal portion of the facial…
- May 2, 2026The mastoid antrum is the largest and most consistent mastoid air cell, communicating with the middle ear via the aditus…
- May 2, 2026The external auditory canal (EAC) is a curved channel approximately 2.5 cm long leading from the auricle to the tympanic…
- May 2, 2026The infratemporal fossa is the irregular space deep to the zygomatic arch and posterior to the maxilla, containing the lower…
- May 2, 2026The temporal fossa is the shallow concavity on the lateral skull above the zygomatic arch, bounded superiorly and posteriorly by…
- May 2, 2026The posterior chamber of the eye is the small fluid-filled space between the posterior iris surface and the anterior lens…
- May 2, 2026The subretinal space is the potential space between the neurosensory retina (photoreceptor outer segments) and the retinal pigment epithelium (RPE).…
- May 2, 2026The olfactory cleft is the narrow air-filled space in the superior nasal cavity between the superior nasal septum medially and…
- May 2, 2026The nasolacrimal duct is the mucosal-lined channel within the nasolacrimal canal that drains tears from the lacrimal sac into the…