Prep Flashcards
What is Falx cerebri, Tentorium cerebelli, Falx cerebelli, Diaphragma sellae?
- Falx cerebri: Between cerebral hemispheres 2. Tentorium: Seperates cerebellum and cerebrum 3. Falx cerebelli: Divides cerebellar hemispheres. 4. Diaphragma sellae: covers sella turcica.
- Superior sagittal sinus 2. Inferior sagittal sinus 3. Straight sinus 4. Confluence of sinuses 5. Transverse sinus (2) 6. Sigmoid sinus (2) -Drains into IJV at junction of sigmoid and petrosal sinuses 7. Superior petrosal sinus (2) 8. Inferior petrosal sinus (2) 9. Cavernous sinus (2)
What is the flow of lymph?
Capillaries–>Vessels–>Nodes–>Trunks–>Ducts–>Venous circulation.
The right side of the face is drained by what lymphatic duct? Left?
Right= Right lymphatic duct Left= Thoracic duct.
What are the branches of the cervical plexus? sensory , motor or both? Associate with what nerve?
- Lesser occipital: S
- Greater auricular: S
- Transverse cervical: S
- Supraclavicular: S
- Phrenic: B
- Ansa cervicalis: M Associated with CNXII
Glands above oral fissure are innervated by what nerve/ganglion? Below?
Above: Greater petrosal via pterygopalatine ganglion. Below: Chorda Tympani via submandibular ganglion
What is the pathway and nerves of parasympathetic innervation of lacrimal gland?
- Pre-gang= Superior salivatory nucleus–>Greater petrosal VII–>Joins deep petrosal (vidian) 2. Post-gang= Pterygopalatine ganglion–>hitch hikes Zygomatic of V2–>Communicating branch–>Lacrimal nerve of V1.
What is the parasympathetic innervation pathway of sublingual and submandibular gland?
Pre= Superior salivatory nucleus–>CN VII exits IAM–>Chorda tympani of VII exits petrotympanic fissure–>hikes on lingual V3. Post= Submandibular ganglion–>Hikes on lingual of V3.
What are the trigeminal nerve divisions, type?
V1: Opthalmic. SensoryV2: Maxillary SensoryV3: Mandibular, Sensory and Motor
What are the 3 main branches of V1?
Frontal, Lacrimal, Nasociliary.
What are all the branches of V1 from the main branches?
- Frontal -Supraorbital -Supratrochlear 2. Lacrimal 3. Sasociliary -Posterior ethmoid -Anterior Ethmoid -External nasal -Infratrochlear -Long cilary -Short ciliary
What do the V1 Frontal branches innervate? Supratrochlear and subraorbital.
- Supraorbital: Frontal sinus, skin superior to lateral orbit including lateral upper eyelid. 2. Supratrochlear: Frontal sinus, skin superior to medial orbit, including medial upper eyelid.
What does the V1 Lacrimal branch innervate?
Conjunctiva, lacrimal gland, skin of upper eyelid
What do the V1 Nasociliary branches innervate?Post. ethmoid, ant. ethmoid, external nasal, infratrochlear, long ciliary, short ciliary.
- Posterior ethmoid: Ehtmoid and sphenoid sinuses 2. Anterior ethmoid: Ethmoid sinus and nasal caity -External nasal: Skin at apex of Nose 3. Infratrochlear: Conjunctiva, lacriaml structures and skin of bridge of nose and eyelid. 4. Long ciliary: Sclera and cornea 5. Short ciliary: Ciliary body and iris.
What does the V2 Posterior superior alveolar nerve innervate?
Maxillary sinus, buccal gingiva along maxillary molars, maxillary molars.
The Trigeminal ganglion is also called?
Semilunar.
What do the branches of V2 Zygomatic branch innervate?
- Zymomaticofacial: Skin inferior and lateral to orbit, including lateral portion of superior lip 2. Zygomaticotemporal: Skin superior and lateral to orbit. 3. Communication to lacrimal: VII Hitch hikers carry para from pterygopalatine ganglion to lacrimal nerve of V1.
What do the branches of V2 Infraorbital branch innervate?MSA, ASA, Nasal, Palpebrael, Superior labial.
- Middle superior alveolar: Maxillary sinus, Maxillary premolars. 2. Anterior Superior Alveolar: Maxillary sinus, Maxillary central incisor, lateral incisor and canine. 3. Nasal: Nasal cavity and nasal septum 4. Palpebrael: Skin of lower eylid5. Superior labial: Skin of upper lip.
What are the innervations of V3 branches meningeal, Tensor tympani, Tensory veli palatini?
- Meningeal: Sensory of meninges 2. Tensor tympani: Motor to tensor tympani m 3. Tensor veli palatini: Motor to tensor veli palatini.
What do the Pharyngeal, nasopalatine, greater and lesser palatine V2 branches innervate?
- Pharyngeal: Nasopharynx2. Nasopalatine: Hard palate and palatal gingiva/mucosa between cuspids.3. Greater palatine: Hard palate and palatal gingiva/Mucosa, between premolar/molars.4. Lesser palatine: Soft palate.
What are the posterior divisions of V3 branch and their innervation? Mylohyoid, Inferior alveolar, Incisive, mental, lingual, auriculotemporal.
- Mylohyoid: Motor to mylohyoid, anterior digastsric 2.Inferior alveolar: Sensory all mandibular teeth via inscisive n, 2nd premolar and molars. -Incisive: Sensory mandibular teeth from 1st premolar anterior. -Mental: Sensory buccal gingiva from 1st premolar anterior, skin of chin and medial lower lip. 3. Lingual: Sensor lingual gingiva from 1st premolar anterior 2/3 of tongue. 4. Auriculotemporal: Sensory to TMJ and capsule, skin of superior to ear and around temple.
What are the anterior division V3 branches and their innervation? M pterygoid, long buccal, masseteric, deep temporal, L pterygoid.
- Medial pterygoid: motor to M pterygoid 2. Long buccal: Sensory to buccal gingiva around molars, skin of cheek, lateral lower lip. 3. Masseteric: motor: masseter, Sensory: TMJ4. Deep Temporal: Motor: Temporalis, Sensory: TMJ5.Lateral Pterygoid: Motor lateral pterygoid.
What is cough reflex? Sensory and motor nerves?
Cough receptors in respiratory tract. Sensory: X Internal laryngealMotor: X (recurrent laryngeal), Phrenic, Intercostal
What are the muscles of the soft palate and their innervations?
- Tensor veli palatini (V3) 2. Levator veli palatini (X) 3. Musculus uvulae (X) 4. Palatopharyngeus (X) 5. Palatoglossus (X)
What are the constrictor muscles of the pharynx and innervation??
Superior, middle, and inferior constrictor. X
What are the longitudinal muscles of the pharynx?
- Palatopharyngeus (X) 2. Salpingopharyngeus (X) 3. Stylopharyngeus (IX)
What are extrinsic muscles of tongue and innervation?
Genioglossus (CN XII) Hyoglossus (CN XII) Palatoglossus (CN X) Styloglossus (CN XII)
