The great cerebral vein of Galen indicated by arrow 4 in following figure is formed by the union of two internal cerebral veins and drains into which of the following?
Answer(s): D
The great cerebral vein of Galen (arrow 4) drains posteriorly into the straight sinus (arrow 5). The union of the superior sagittal sinus (choice E; arrow 3) and the straight sinus forms the confluence of sinuses (choice A). The straight sinus and superior sagittal sinus are dural venous sinuses: they contain venous blood draining form the brain, skull, and scalp. The frontal sinus (choice B) and the sphenoid sinus (choice C) are bony sinuses: they are hollow, airfilled structures and do not drain venous blood.
A 42-year-old female patient has to undergo emergency cholecystectomy due to intense biliary colic. The structure to be removed during the surgery is indicated in following figure by which of the following arrows?
Answer(s): B
Arrow 2 points to the gallbladder, which will be removed during the cholecystectomy (surgical removal of the gallbladder). Biliary colic may be due to impaction of a gallstone in the cystic duct, resulting in cholecystitis (inflammation of the gallbladder). Arrow 1 (choice A) points to the liver. Arrow 3 (choice C) points to the transverse colon. Arrow 4 (choice D) points to the spleen and arrow 5 (choice E) indicates the stomach, recognizable by its internal rugae.
Apatient with a developing astroglioma in the primary auditory cortex (Brodmann's area 41) complains of hearing unusual noises. What is the main source of subcortical input to the primary auditory cortex?
Answer(s): C
The main subcortical afferents to the primary auditory cortex (Brodmann's area 41) arise from the medial geniculate nucleus of the thalamus. The inferior colliculus (choice A) is a midbrain auditory relay nucleus, which sends projections to the medial geniculate nucleus. The lateral geniculate nucleus (choice B) is a visual relay nucleus in the thalamus and it projects to the primary visual cortex (Brodmann's area 17). The superior colliculus (choice D) is a midbrain visual relay nucleus, which provides fibers to the tectospinal tract. The superior olivary nucleus (choice E) is a medullary auditory relay nucleus, which sends projections to the cochlea.
A 65-year-old male patient develops neurological symptoms due to an embolus in the left common carotid artery. In the CT scan in following figure, the involved vessel is indicated by which of the following arrows?
Arrow 4 points to the left common carotid artery. The three arteries arising from the arch of the aorta are lined anteriorly to posteriorly on a slanted line: arrow 3 (choice C) shows the brachiocephalic artery, arrow 4 (choice D) points to the left common carotid artery, and arrow 5 (choice E) indicates the left subclavian artery. Arrow 2 (choice B) points to the right brachiocephalic vein, which is joined here by the left brachiocephalic vein. Arrow 1 (choice A) points to the trachea, which is filled with air and thus is not radiopaque.
A 53-year-old male patient has developed an abnormal hypersensitivity in the face area. He complains that he feels pain when he drives with the window down and from the wind blowing on his face. The pain is exacerbated by direct touch to the left side of his lower jaw. The patient is diagnosed with trigeminal neuralgia (tic douloureux). Where do pain fibers from the left side of his mandible project to?
Fibers from pain and temperature receptors in the face area all project to the spinal (descending) trigeminal nucleus. The mesencephalic trigeminal nucleus (choice A) contains the perikarya of the proprioceptive fibers of the muscles of mastication. The motor trigeminal nucleus (choice B) receives innervations from the mesencephalic trigeminal nucleus. The principal sensory trigeminal nucleus (choice C) receives somatosensory fibers from the face, gums, teeth, and anterior two-thirds of the tongue. The trigeminal (gasserian) ganglion (choice E) contains the sensory perikarya of all three subdivisions of the trigeminal nerve.
Share your comments for USMLE STEP1 exam with other users:
question 81 should be c.
question 18 : response isnt a ?
plaese add questions
is dumps still valid ?
thanks for this
please upload questions
please upload the question dump for professional machinelearning
question 4 answer is c. this site shows the correct answer as b. "adopt a consumption model" is clearly a cost optimization design principle. looks like im done using this site to study!!!
number 52 answer is d
just started preparing for my exam , and this site is so much help
question 35 is incorrect, the correct answer is c, it even states so: explanation: when a vm is infected with ransomware, you should not restore the vm to the infected vm. this is because the ransomware will still be present on the vm, and it will encrypt the files again. you should also not restore the vm to any vm within the companys subscription. this is because the ransomware could spread to other vms in the subscription. the best way to restore a vm that is infected with ransomware is to restore it to a new azure vm. this will ensure that the ransomware is not present on the new vm.
i would like to take psm1 exam.
cbd and pdb are key to the database
the purchase and download process is very much streamlined. the xengine application is very nice and user-friendly but there is always room for improvement.
please upload p_sapea_2023
anyone use this? the question dont seem to follow other formats and terminology i have been studying im getting worried
good questions
hello are these questions valid for ms-102
some questions are wrongly answered but its good nonetheless
how to get system serial number using intune
is it really helpful to pass the exam
#229 in incorrect - all the customers require an annual review
kindy upload
fantastic assessment on psm 1
56 question correct answer a,b
thank you for providing the q bank
true quesstions
i can´t believe ms asks things like this, seems to be only marketing material.
hi, could you please add the last update of ns0-527
question #3 refers to vnet4 and vnet5. however, there is no vnet5 listed in the case study (testlet 2).
sometimes it may be good some times it may be
qs 4 answer seems wrong- please check
very detailed explanation !
the interactive nature of the test engine application makes the preparation process less boring.