Radiology Flashcards
When would you do barium swallow?
Barium swallow used if no abnormality found at endoscopy
To demonstrate strictures distal to the cricopharyngeus
Pharyngeal pouches
Oesophageal dysmotility
Transmits V2 of trigeminal nerve
Foramen rotundum
Connects PPF to middle cranial fossa
Foramen rotundum
Transmits V3 of trigeminal nerve
Foramen ovale
Transmits accessory meningeal artery
Foramen ovale
Transmits middle meningeal artery
Foramen spinosum
Transmits vidian nerve, artery and vein
Vidian canal
PPF to middle cranial fossa
Foramen rotundum
MCF/foramen lacerum to PPF
Vidial canal
Orbit to PPF
Inferior orbital fissure
Nose to PPF
Sphenopalatine foramen
Mouth to PF
Greater and lesser palatine canals
Masticator space to PPF
Pterygomaxillary fissure
Origin of petrosal nerves
Geniculate ganglion
Taste fibres synapse here
Geniculate ganglion
Where does the tympanic segment of the facial nerve lie?
Below the lateral semicircular canal in middle ear cavity
3 branches of the mastoid segment of the facial nerve
- Chorda tympani
- Nerve to stapedius muscle
- Post. auricular branch of vagus nerve
What does the extra-cranial segment of the facial nerve supply?
The muscles of facial expressino
Things on the slide at the nasopharynx level
- eustachian tube opening
- torus tubarius (protrusion just behind the eustachian tube)
- prevertebral muscles
Where is the pharynx?
From the base of the skull to C6/level of cricopharyngeus
Level of the cricopharyngeus
C6
Muscles in the pharyns
- 3 constrictor muscles and
- cricopharyngeus
- palatopharyngeus
- stylopharyngeus
Where is the oropharynx?
From the soft palat to the epiglottis
Where is the hypopharynx?
level of glossoepiglottic fold/pharyngoepiglottic folds to the inferior cricoid cartilage
(this is the same as the larynx but the larynx is anterior)
Mucosa
Lymphoid tissue
Constrictor muscles
Pharyngeal mucosal space
Mandible
Muscles
CNV
Masticator space
Which nerve in mandible space?
CNV
Pathology of the masticator space
Dental abscess/cyst
Invasion from oral cavity
Where is the retropharyngeal space?
Deep to the pharyngeal mucosa and anterior to the longus coli and capitus muscles
Carotid artery
Jugular vein
Cranial and sympathetic nerves
Lymph nodes
Carotid space
Pathology of carotid space
Schwannoma
Paraganglioma
Lymph nodes