Following a motor vehicle accident, a patient complains of s…
Following a motor vehicle accident, a patient complains of severe headache and dizziness. A CT scan of the patient’s head reveals an accumulation of blood within the cranial cavity (indicated by the outline in the image), and displacement of the lateral ventricle. Based upon this image, what is the most likely diagnosis?
Read DetailsThe “danger space” is a clinically relevant fascial space be…
The “danger space” is a clinically relevant fascial space because it can allow the spread of infection from the head/neck inferiorly into the posterior mediastinum (chest cavity). Which one of the following best describes the location of the danger space?
Read DetailsFollowing surgery to remove a salivary calculus (stone) from…
Following surgery to remove a salivary calculus (stone) from the submandibular duct (Wharton’s duct), a patient complains of numbness on one side of his tongue. What is the location of the cell bodies of the afferent (GSA) neurons that have been damaged in this patient?
Read DetailsA patient is diagnosed with a tumor in the apex of his left…
A patient is diagnosed with a tumor in the apex of his left lung (Pancoast tumor). The tumor mass is growing through the superior thoracic aperture, and is putting pressure on structures in the base of the neck. Physical examination reveals that the patient’s left pupil is much smaller (miosis) than his right pupil, and his left upper eyelid is somewhat droopy (ptosis). Additionally, the left side of the patient’s face appears more pale than the right side of his face. Based upon these findings, this patient’s droopy eyelid (ptosis) is caused by loss of motor innervation to which muscle?
Read DetailsDuring DNA replication, which enzyme is first needed to crea…
During DNA replication, which enzyme is first needed to create the initial nucleic acid strand that complements the DNA strand? Which enzyme is then used to elongate the replicated strand (be specific)? If this replicating strand is the strand that is running towards the replication fork (with no other strands in front of it), what is this replicating strand called? [1.5 pts]
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