MRCS: Head and Neck/ENT/Endocrine +
CNS physiology correctly answered to
pass
What is Cushing's triad? - correct answer ✔✔Hypertension + bradycardia +
respiratory depression
What are the branches of the ECA? - correct answer ✔✔Some Attendings Like
Freaking Out Potential Medical Students
Superior Thyroid
Ascending pharyngeal
Lingual
Facial
Occipital
Post auricular
Maxillary
Superior temporal
What is Trotter's triad for nasopharyngeal cancer? - correct answer ✔✔Unilateral
conductive hearing loss
Ipsilateral facial & ear pain
Ipsilateral paralysis of soft palate
,Assoc. with EBV
What is a branchial arch? - correct answer ✔✔Support for the lateral walls of the
cranial part of primitive pharynx
What are the contents of the cavernous sinus? - correct answer ✔✔O TOM CAT
Occulomotor nerve (III)
Trochlear nerve (IV)
Ophthalmic nerve (V1)
Maxillary nerve (V2)
Carotid artery
Abducent nerve (VI)
T
OTOM=lateral wall components
CA= components within sinus
What are the parasympathetic functions of CNIII? - correct answer ✔✔Pupillary
constriction/accomodation
What are the parasympathetic functions of the facial nerve? - correct answer
✔✔Lacrimal gland, submandibular and sublingual glands
,What are the parasympathetic functions of the glossopharyngeal nerve? - correct
answer ✔✔Parotid
What are the parasympathetic functions of the vagus nerve? - correct answer
✔✔Heart and viscera
Describe the course of the cranial parasympathetic fibres - correct answer
✔✔Arise from nuclei within the CNS
Synapse at the parasympathetic ganglia (otic, pterygopalatine, ciliary and
submandibular)
The journey to target tissues in CNV1, V2, V3
Describe the embryology of the tongue - correct answer ✔✔Tuberculum impar
develops in the floor of the pharynx
Two lingual swellings arise from the first branchial arch and fuse to become the
anterior 2/3rds of the tongue (CN V)
Part of the second branchial arch contributes to the anterior 2/3rds of tongue (CN
VII - chorda tympani)
The posterior 1/3 of tongue develops from the third branchial arch (CN IX)
The tongue musculature is derived from migrating occipital myotomes (CN XII)
, What is the primitive mouth called? - correct answer ✔✔Stomodaeum
What are the derivatives of the first pharyngeal pouch? - correct answer
✔✔Eustachian tube, middle ear, mastoid antrum
What are the derivatives of the second pharyngeal pouch? - correct answer
✔✔Tonsillar fossa (palatine tonsil)
What are the derivatives of the third pharyngeal pouch? - correct answer
✔✔Thymus, inferior parathyroid
What are the derivatives of the fourth pharyngeal pouch? - correct answer
✔✔Superior parathyroid, C-cells of thyroid
What is the nerve supply to the first branchial arch? - correct answer ✔✔CN V
What skeletal structures are derived from the first branchial arch? - correct
answer ✔✔*Bones:*
Incus and malleus (Meckel's cartilage)
*Ligaments:*
Sphenomandibular ligament
Anterior ligament of malleus
What muscles are derived from the first branchial arch? - correct answer
✔✔Mastication muscles
CNS physiology correctly answered to
pass
What is Cushing's triad? - correct answer ✔✔Hypertension + bradycardia +
respiratory depression
What are the branches of the ECA? - correct answer ✔✔Some Attendings Like
Freaking Out Potential Medical Students
Superior Thyroid
Ascending pharyngeal
Lingual
Facial
Occipital
Post auricular
Maxillary
Superior temporal
What is Trotter's triad for nasopharyngeal cancer? - correct answer ✔✔Unilateral
conductive hearing loss
Ipsilateral facial & ear pain
Ipsilateral paralysis of soft palate
,Assoc. with EBV
What is a branchial arch? - correct answer ✔✔Support for the lateral walls of the
cranial part of primitive pharynx
What are the contents of the cavernous sinus? - correct answer ✔✔O TOM CAT
Occulomotor nerve (III)
Trochlear nerve (IV)
Ophthalmic nerve (V1)
Maxillary nerve (V2)
Carotid artery
Abducent nerve (VI)
T
OTOM=lateral wall components
CA= components within sinus
What are the parasympathetic functions of CNIII? - correct answer ✔✔Pupillary
constriction/accomodation
What are the parasympathetic functions of the facial nerve? - correct answer
✔✔Lacrimal gland, submandibular and sublingual glands
,What are the parasympathetic functions of the glossopharyngeal nerve? - correct
answer ✔✔Parotid
What are the parasympathetic functions of the vagus nerve? - correct answer
✔✔Heart and viscera
Describe the course of the cranial parasympathetic fibres - correct answer
✔✔Arise from nuclei within the CNS
Synapse at the parasympathetic ganglia (otic, pterygopalatine, ciliary and
submandibular)
The journey to target tissues in CNV1, V2, V3
Describe the embryology of the tongue - correct answer ✔✔Tuberculum impar
develops in the floor of the pharynx
Two lingual swellings arise from the first branchial arch and fuse to become the
anterior 2/3rds of the tongue (CN V)
Part of the second branchial arch contributes to the anterior 2/3rds of tongue (CN
VII - chorda tympani)
The posterior 1/3 of tongue develops from the third branchial arch (CN IX)
The tongue musculature is derived from migrating occipital myotomes (CN XII)
, What is the primitive mouth called? - correct answer ✔✔Stomodaeum
What are the derivatives of the first pharyngeal pouch? - correct answer
✔✔Eustachian tube, middle ear, mastoid antrum
What are the derivatives of the second pharyngeal pouch? - correct answer
✔✔Tonsillar fossa (palatine tonsil)
What are the derivatives of the third pharyngeal pouch? - correct answer
✔✔Thymus, inferior parathyroid
What are the derivatives of the fourth pharyngeal pouch? - correct answer
✔✔Superior parathyroid, C-cells of thyroid
What is the nerve supply to the first branchial arch? - correct answer ✔✔CN V
What skeletal structures are derived from the first branchial arch? - correct
answer ✔✔*Bones:*
Incus and malleus (Meckel's cartilage)
*Ligaments:*
Sphenomandibular ligament
Anterior ligament of malleus
What muscles are derived from the first branchial arch? - correct answer
✔✔Mastication muscles
