Evans-VasculatureH&N
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| 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
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| What nerve does the Superior thyroid A travel with? | Internal branch of Superior Laryngeal N
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| What Artery comes off the Superior Thyroid A? | Superior Laryngeal A
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| 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.
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| What is the only medial branch of the Ext Carotid A? | Ascending Pharyngeal A. (2nd branch off the ECA)
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| 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.
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| 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)
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| CN XII exits the skull directly below what artery? | Occipital A
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| Temporal Arteritis | Patient presents with scalp/eye pain, extreme head aches, and dilated vasculature in temporal region.
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| Branches off the Maxillary A | 1.Middle Meningeal.
2.Inferior alveolar.
3.Spehnopalatine.
4.Superior Alveolar.
5.Infraorbital.
6.Greater Palatine
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| 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.
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| Where does the Middle Meningeal A enter the skull? | Foramen Spinosum. It then is found in the grooves on the temporal bones.
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| 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"
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| Presentation of "normal/textbook" Circle of Willis | Only seen in about 20-25% of pop
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| What Artery runs inferior to CN VI-X? | Anterior Inferior Cerebellar A
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| What Artery runs between CN I and CN II? | Anterior Cerebral A
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| What Artery runs over the Hypoglossal N? | Posterior inferior cerebellar A
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| What CN does the posterior cerebral cross superiorly? | CN III oculomotor. **superior cerebellar is just behind and inferior to CN III
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| Most common site for a Subarachnoid Hemorrhage? | Anterior communicating A. (Congenital saccular aneurysm)
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| 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
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| 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)
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| 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.
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| Emissary Veins | Allow infection to spread from the scalp to the cranial cavity. They pass through parietal foramina
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| Structure located on lateral wall within the cavernous sinus? | CN III, IV, V1, V2.
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| Structures located centrally on either side of the cavernous sinus? | CN VI and Internal carotid A
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| Cavernous Sinus Thrombosis (CST) | complication of untreated sinusitis or facial infection.
**patien presents with eye swelling, HA, loss of corneal reflex.
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| Corneal Reflex | Poke eye, both eyes blink. Senory arm: V1. Motor arm: VII
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