NWHSU Mash GA 2 Q 2 Vessels Carotids
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| Structure located directly in the bifurcation of the common carotid a. | Carotid body
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| What is the carotid tubercle? Be specific and complete!! | Anterior tubercle of transverse process of C6 vertebra
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| What is the function of the following: a) carotid body | monitors O2 and CO2 levels in blood
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| What is the function of the following: b) carotid sinus | regulates systemic BP
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| Forms posterior border of carotid triangle | SCM
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| Right common carotid a. arises deep to this surface landmark. | Sternoclavicular joint
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| Forms the anteroinferior border of the carotid triangle. | Superior belly of omohyoid m.
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| forms the anterosuperior border of the carotid angle. | Posterior belly of digastric, stylohyoid mm.
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| Level at which the common carotid bifurcates into internal and external branches | C3/4 (upper border of thyroid cartilage)
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| Assume a partial occlusion of the right common carotid. Give correct sequence by which a drop of blood would travel to reach an area distal to the occlusion. Begin with the common carotid artery and end with the maxillary. | common carotid>external carotid>superior thyroid>ascending pharyngeal>lingual>facial>occipital>posterior auricular>superficial temporal>maxillary
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| Besides the carotid a., give the structures in the carotid sheath | Internal jugular v., vagus n.
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| vessel which directly supplies floor of mouth and tongue | Lingual A.
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| branch of the external carotid which supplies the dura, tympanic cavity, palatine tonsil, longus capitus and colli, etc. | Ascending pharyngeal
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| Specific artery that supplies the scalp above and behind the ear, tympanic cavity, mastoid air cells, etc. | Posterior auricular
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| branch of maxillary a. that supplies teeth via the mandibular foramen | Inferior alveolar
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| Branch of maxillary a. that supplies the nasal septum and paranasal sinuses | Sphenopalatine
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| Branch of maxillary a. which passes through the foramen spinosum | Middle meningeal
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| branch of maxillary artery which supplies molars and premolars of maxilla, gums, and maxillary sinus. | Posterior superior alveolar
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| branch of maxillary artery which supplies ROOF of mouth | Greater palatine a.
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| Third branch of the external carotid a. | Lingual Artery
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| What branches of the external carotid a. supply the palatine tonsils? | Ascending pharyngeal, lingual, facial
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| Branch of internal carotid a. which travels in the longitudinal cerebral fissure. | Anterior cerebral
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| Dilation at proximal beginning of internal carotid artery. | Carotid sinus
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| Largest branch of the internal carotid a., runs in the lateral cerebral fissure to supply certain lobes | Middle cerebral
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| Largest branch of the internal carotid artery : it curves around corpus callosum and supplies the medial surface of the hemispheres | Middle cerebral
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| Cranial nerve that CROSSES the lower lateral part of both the internal and external carotid arteries | Hypoglossal
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| Assume 1 or both of the internal carotid aa. Are partially occluded. Name the specific artery that would allow: b) retrograde blood flow directly into the cerebral part of the internal carotid system from the external carotid system | ophthalmic
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| Name the branches of the petrous part of the internal carotid a. | Caroticotympanic & Artery of the pterygoid canal
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| The PETROUS part of the internal carotid a. is separated from what two SPECIFIC structures by a thin piece of bone | Cochlea of inner ear and trigeminal ganglia
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| Name the direct branches of the cerebral part of the internal carotid a. | Ophthalmic, choroidal, posterior communicating, middle cerebral, anterior cerebral
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| The ______ part of the internal carotid artery passes in close association with ______ (nerves). They may be affected by an aneurysm of the vessel. | Cavernous; III, IV, V1, VI
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| From lecture, the internal carotid artery supplies _________ (%) percent of the ___________ (be very specific) | 80-90%; Cerebral hemispheres
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| Draw the circulus arteriosis (circle of Willis) and label all component vessels. The two circles below represent the internal carotids. Begin the drawing from them. Be accurate and neat! | Draw diagram
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| Name the vessels with which the descending branch of the occipital Artery has anastomosis | Vertebral artery, thyrocervical trunk, costocervical trunk
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| Vessel which passes through the foramen lacerum (Be Complete!) | Meningeal Branch of Ascending Pharyngeal Artery
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| Name the branches of the ophthalmic artery | lacrimal, central, dorsal nasal, supraorbital, supratrochlear, palpebral
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| Physiologically (not structurally) why does the foramen ovale close after birth? | increased pressure in left atrium or decreased pressure in right atrium
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AnatomyMash
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