S2 Extra Flashcards
What structures do the pre-tracheal and buccopharyngeal fascia envelop?
Pharynx Oesophagus Infrahyoids Thyroid gland Larynx
Which lymph nodes lie deep to the investing layer of cervical fascia?
Jugulo-omohyoid
Supraclavicular
Jugulo-digastric
Which bone is most likely to be fractured in a basilar skull fracture causing bleeding out of the ear?
Petrous part of the temporal bone
A fracture to the anterior cranial fossa involving the orbital plates of the frontal bone can cause bleeding into which area?
What is this called?
Blood can accumulate in the orbital region causing bruising around the eyes.
This is called periorbital ecchymosis.
A fracture involving which bone causes blood or CSF to leak into the nasal cavity and drip out of the nostrils. - CSF rhinnorhea
The ethmoid bone
Which nerves arise from the trigeminal nerve?
Ophthalmic - V1
Maxillary - V2
Mandibular - V3
The carotid sheath arises from what and extends to what?
The base of the skull inferiorly to the aortic arch
During a cranial nerve examination, a patient is asked to squeeze their eyes tightly and try and prevent the examiner form opening them? What is the muscle responsible?
Orbital part of the orbicularis occuli
When entering the skull what does the internal carotid artery pass through?
Carotid canal
Petrous part of the temporal bone
Carotid sheath
What are the branches of the external carotid artery?
Superior thyroid artery Ascending pharyngeal Lingual Facial Occipital Posterior auricular Mandibular Superficial temporal
Which nerves arise from the facial nerve?
Temporal Zygomatic Buccal Marginal mandibular Cervical
Which muscle is responsible for raising the eyebrows?
Frontalis
