Cranial Nerves Flashcards
It leaves the anterior aspect of the pons
Trigeminal
Crosses pterygopalatine fossa to enter infratemporal fossa
Maxillary 3
Infratrochlear
Infraorbital
Nasocilliary of opthalmic
Maxillary
Which branch of the maxillary gives parasympathetic secretomotor fibers to the lacrimal gland via the lacrimal nerve.
The zygomatico-temporal
Gangilionic branches
A branch that suspends the pterygopalatine ganglion in the pterygopalatine fossa.
Gangillionic branches of the maxillary
Posterior superior alveolar
Maxillary
Anterior and middle superior alveolar nerves
Infraorbital nerve
Inferior alveolar nerve
Posterior division of the mandibular
contain sympathetic fibers to the dilator pupillae muscle and sensory fibers to the cornea
Long ciliary nerves
nerves that leave the orbital cavity to supply the skin of the forehead and the scalp?
. The frontal nerve: divides into the supraorbital and supratrochlear nerves.
A nerve supplies the maxillary sinus as well as the upper molar teeth and adjoining parts of the gum and the cheek.
Posterior superior alveolar from maxillary
Terminal branches: palpebral, nasal and labial.
Infraorbital nerve of the maxillary
which supplies the maxillary sinus as well as the upper premolar teeth, the gums, and the cheek.
Middle superior alveolar nerve
supplies the maxillary sinus as well as the upper canine and the incisor teeth
Anterior superior alveolar nerve
contains taste fibers from the palate.
The greater petrosal nerve
The superior and inferior sensory ganglia are located on the nerve as it passes through the foramen.
Glossopharyngeal
Then the nerve and the muscle pass between the superior and the middle constrictors of the pharynx.
Glossopharyngeal
• At last, the glossopharyngeal nerve passes deep to X Muscle and terminates in the tongue.
X= hyoglossus muscle
descends in the neck within the carotid sheath between the internal jugular vein and the internal carotid artery.
Vagus nerve
X passes through the mediastinum of the thorax, passing behind the root of the lung, and enters the abdomen through the y opening in the diaphragm as anterior and posterior gastric nerves.
Vagus, esophegeal
• On reaching the medial wall of the middle ear (tympanic cavity), the nerve expands to form
the sensory geniculate ganglion.
Facial nerve
Which muscles does the facial nerve supply
2.Nerve to stapedius supplies the stapedius muscle in the middle ear.
4. Nerve to posterior belly of digastric and stylohyoid muscles.
5. Posterior auricular nerve to occipitalis and auricularis posterior muscle.
6. Five terminal branches to the muscles of facial expression
Which muscles does the mandibular nerve supply
Main trunk v3
2. Nerve to the medial pterygoid muscle
Anterior division v3
1. Masseteric nerve to the masseter muscle.
2. Deep temporal nerves to the temporalis muscle.
3. Nerve to the lateral pterygoid muscle
Posterior division v3
Nerve to mylohyoid
Carotid branch, pharyngeal branch
Glossopharngeal and vagus
Where does the cranial root of accesory meets the vagus
a. At the inferior ganglion,
the cranial root of the accessory nerve joins the vagus nerve and is distributed mainly in
its pharyngeal and recurrent laryngeal branches.
It emerges on the anterior surface of the medulla oblongata between
the pyramid and the olive, crosses the posterior cranial fossa
Hypoglossal Nerve
Stylohyoid
Stylopharyngeus
Facial
Glossopharyngeal
Posterior ethmoidal nerve
Nasocilliary
Nasocillary nerve continues as
Anterior ethmoidal nerve
Tympanic branch
Glossopharyngeal
Passes between internal and external carotid arteries
Glossopharyngeal nerve
Cricothyroid muscle
External laryngeal nerve of vagus
Supply of all the larynx muscle except cricothyroid
Reccurent laryngeal nerve
Meningeal branches of hypoglossal nerve
C1 fibers
Thyrohyoid and geniohyoid
C1 of hypoglossal nerve
Omohyoid, sternohyoid ,sternothyroid
Ansa cervicalis
Superior belly of omohyoid
A branch of superior limb (descendens hypoglossi) not from ansa cervicalis it self
The skin of the tip of the nose is supplied by
external nasal nerve from opthalmic
