I've been doing some final revision questions from the Head and Neck text and need some confirmation on some questions =) (<--- is the one i chose)
Which of the following arteries arises from the inferior alveolar artery before the artery enters the mandibular canal?
A. Mylohyoid <---
B. Incisive
C. Mental
D. PSA
E. Submental
Which of the following vascular lesions may result when a clot on the inner blood vessel wall becomes dislodged and travels in the vessel?
A. Hematoma <---
B. Venous sinus
C. Embolus
D. Hemorrhage
Which of the following is the larger terminal branch of the external carotid artery?
A. Superficial temporal artery
B. Ascending palatine artery
C. Facial artery
D. Maxillary artery <---
E. Lingual artery
Which of the following is contained in the carotid sheath?
A. Facial nerve
B. Internal jugular vein
C. Aorta
D. Superficial lymph nodes
Which of the following cranial nerves has fibres that cross to the opposite side in the skull before continuing into the brain?
A. Facial
B. Optic
C. Trochlear
D. Vestibulocochlear
Which of the following nerves exits the foramen ovale of the sphenoid bone?
A. Chorda tympani of the facial nerve
B. Greater petrosal nerve of the facial nerve
C. Opthalmic nerve of the trigeminal nerve
D. Motor root of the trigeminal nerve <---
Also, just found this out then, the mylohyoid nerve may serve as an afferent nerve for the mandibular first molar, which needs to be considered when there is failure of the inferior alveolar LA block =)
Any help answering these questions would be great!!
Thanks
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2 comments:
Hey timmy.
Q1 = i agree mylohyoid
Q2 = i would agree hematoma but i did also think embolus as an embolus is a travelling blood clot? may need to double check for cetainty.
Q3 = Correct Maxillary :D
Q4 = i would say the internal jugular vein is in the carotid shealth, as the carotid sheath carries the internal carotid artery adn im pretty sure the vein runs along with the artery(pp 48)
Q5 = optic nerve crosses to oposite side (Pp 188)
hope that helps you a bit.
OMG you posted this at 1am. ur insane get some sleeep
OK ill catch ya soon. goodluck man.
Q6 = i agree D motor root of trigeminal
With Q2. I think its a Embolus Because: an Embolus= is when a thrombus (plaque mass/matter) dislodges from the inner vessel and travels.
A. Hematoma= is when blood a blood vessel is injured and small amount of blood escapes into surrounding tissue which then clots. Blood clot is then broken down by the body.
D. Hemorrhage= blood vessel is injured and blood escapes into surrounding tissues WITHOUT clotting.
B. Venous Sinus= space (sac) filled with blood
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