
Locate nasopharynx on this anatomical reference. Read the original plate labels to confirm the view and adjacent structures.
Zoom in, then drag to inspect. Keyboard: + / − to zoom, arrows to pan, 0 to reset. Tap the numbered markers to explore parts.
pharynx: labelled anatomical figure. Original source colours and labels retained.
Image: OpenStax / University of Hawaiʻi adapted teaching figures; original contributors credited at source · Source / original · CC BY 4.0 — figure credits at sourceNumbered markers and focused views are Mediveerse learning overlays; the original reference is linked above.
Danger space of neck
Understand what you see.
A potential route for descending infection into the thorax.
Zoom into the original labels. Practise pointing out each structure, then explain it aloud. Diagrams are teaching references; specimen appearance and slide staining vary.
How to recognise it.
- Potential plane behind alar fascia
- Anterior to prevertebral fascia
- Extends from skull base toward the diaphragm
Point them out.
Tap a number to open its reference, zoom in and locate the structure. Numbers stay the same across views. This key follows landmarks visible in the reference images.
Think first. Then reveal.
Say your answer aloud before opening the suggested response.
Examiner-style prompts: identify the structure, explain its relations, then answer the applied follow-up. These are revision questions, not authenticated past papers.
01Identify danger space of neck and give its main role.+
Potential plane behind alar fascia. Anterior to prevertebral fascia. Extends from skull base toward the diaphragm. A potential route for descending infection into the thorax.
02Why is it called the danger space?+
Its continuity into the posterior mediastinum allows infection to spread a long distance from the neck.
03Is it the true retropharyngeal space?+
No. In the standard alar-fascia model they are separated by the alar fascia.
04Point out three important relations and explain their significance.+
Anterior: alar fascia; Posterior: prevertebral fascia; Inferior: posterior mediastinal continuity. A potential route for descending infection into the thorax. Use the reference plate to locate the region; the relationship map organises the associations and is not drawn to scale.
Read the references.
Credited anatomical plates, microscopy and university teaching references. Individual image credits appear below the viewer. Historical plates can use older terminology; use the lesson text for current names.