Evans-VasculatureH&N Word Scramble
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Question | Answer |
All 8 branches of the external carotid A in order as it ascends | 1.Superior Thyroid. 2.Ascending Pharyngeal. 3.Lingual. 4.Facial. 5.Occipital. 6.Posterior Auricular. 7.Maxillary. 8.Superficial Temporal |
What nerve does the Superior thyroid A travel with? | Internal branch of Superior Laryngeal N |
What Artery comes off the Superior Thyroid A? | Superior Laryngeal A |
Does the inferior thyroid Vein travel with the inferior thyroid A? | No, the inf thyroid A comes off the thyrocervical trunk lateral to the trachea while the veins travel down the midline of the trachea to the bracheocephalics. |
What is the only medial branch of the Ext Carotid A? | Ascending Pharyngeal A. (2nd branch off the ECA) |
Where will you find the Lingual A? | (3rd branch off the ECA)Runs with the Hypoglossal nerve (CN XII) deep to stylohyoid and Post. Digastric. |
Arteries derived from the facial artery | (4th branch off ECA) 1.Inferior Labial A. 2.Superior Labial A. 3.Angular A (stays in the nasal-labial crease) |
CN XII exits the skull directly below what artery? | Occipital A |
Temporal Arteritis | Patient presents with scalp/eye pain, extreme head aches, and dilated vasculature in temporal region. |
Branches off the Maxillary A | 1.Middle Meningeal. 2.Inferior alveolar. 3.Spehnopalatine. 4.Superior Alveolar. 5.Infraorbital. 6.Greater Palatine |
What arteries are responsible for nose bleeds? | Kiesselbach's plexus: 1.Sphenopalatine A. 2.Superior labial A. 3.Greater Palaine A. 4.Anterior Ethmoid A. |
Where does the Middle Meningeal A enter the skull? | Foramen Spinosum. It then is found in the grooves on the temporal bones. |
Epidural Hematoma | Spread of BL from lateral skull blunt trauma is in the epidural space. Movement laterally is limited by dural attachment to inner skull table which causes a midline shift. Therefore they feel initial pain and then a "lucid interval" |
Presentation of "normal/textbook" Circle of Willis | Only seen in about 20-25% of pop |
What Artery runs inferior to CN VI-X? | Anterior Inferior Cerebellar A |
What Artery runs between CN I and CN II? | Anterior Cerebral A |
What Artery runs over the Hypoglossal N? | Posterior inferior cerebellar A |
What CN does the posterior cerebral cross superiorly? | CN III oculomotor. **superior cerebellar is just behind and inferior to CN III |
Most common site for a Subarachnoid Hemorrhage? | Anterior communicating A. (Congenital saccular aneurysm) |
How would Patient present with a subarachnoid hemorrhage of Ant comm A? Post comm A? | Ant: Worse head ache of their life, vision loss. Post: Worse head ache of their life with occulomotor loss |
Subdural hematoma | Rupture of Bridging Veins. Delayed onset of symptoms and NO midline shift b/c blood can spread laterally across suture lines. **Seen with SHEARING force (whiplash, shaken baby syndrome) |
Danger Triangle | The facial v can drain to the cavernous sinus via superior/inferior opthalmic v. Therefore you can infection can spread there causing meningitis. |
Emissary Veins | Allow infection to spread from the scalp to the cranial cavity. They pass through parietal foramina |
Structure located on lateral wall within the cavernous sinus? | CN III, IV, V1, V2. |
Structures located centrally on either side of the cavernous sinus? | CN VI and Internal carotid A |
Cavernous Sinus Thrombosis (CST) | complication of untreated sinusitis or facial infection. **patien presents with eye swelling, HA, loss of corneal reflex. |
Corneal Reflex | Poke eye, both eyes blink. Senory arm: V1. Motor arm: VII |
Created by:
WeeG
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