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Answer updated on: 12 Feb 2020
ImprintingThe correct answer is C. This child most likely has Angelmans syndrome. Individuals with this phenotype have a characteristic facies with microcephaly, maxillary hypoplasia, deepset eyes, and a large mouth with tongue protrusion. Their gait is jerky and puppet-like, and their behavior is marked by frequent paroxysms of inappropriate laughter. Severe mental retardation and speech ...
Answer updated on: 12 Feb 2020
P53The correct answer is E. This HIV-positive patient has multiple anogenital warts, or condylomata
acuminata, which are commonly caused by human papilloma virus (HPV) types 6 and 11. A feared complication of condylomata acuminata is anorectal cancer, as seen here. Immunodefi ciency predisposes to the development of HPV-induced transformation. The mechanism of HPV-induced transformation involves ...
Answer updated on: 12 Feb 2020
PropranololAsthma, a disease involving increased resistance of the upper airways, is treated by administering drugs that produce bronchiolar dilation (i.e.,B2 agonists). B2 Agonists include isoproterenol, albuterol, epinephrine, and, to a lesser extent, norepinephrine. Antagonists, such as propranolol, are strictly contraindicated because they cause constriction of the bronchioles.
Answer updated on: 12 Feb 2020
AortaThe epiploic (omental) foramen is a passageway between the greater peritoneal sac and the lesser peritoneal sac. It is located posterior to the hepatoduodenal ligament and the first part of the duodenum. The caudate lobe of the liver forms the posterior wall of the epiploic foramen. The aorta is retroperiteoneal, and it does not form a boundary of this foramen
Answer updated on: 12 Feb 2020
Oxidative phosphorylation
Answer updated on: 12 Feb 2020
AtropineAnswer: E
When complicating an inferior myocardial infarction, AV block often results from an increased
parasympathetic tone and usually respond to atropine. Sometimes the block resolve
spontaneously, but in the present case the block must be treated since the heart rate is too low
for a sufficient cardiac output.
A) Epinephrine can increase the heart rate but is usually contraindicated ...
Answer updated on: 12 Feb 2020
Increased synthesis of the cell surface glycoprotein P-170Answer: C
Anticancer drugs resistance can develop to a single drug or to a variety of drugs of different structures,
after the exposure to a single agent.
Single drug resistance can be due to:
1) Decreased sensitivity of a target enzyme
2) Decreased target receptor affinity to the drug
3) Increased inactivation of drugs
4) Decreased ...
Answer updated on: 12 Feb 2020
Isospora belliThe correct answer is D. All of the organisms listed are protozoa. There are two intestinal protozoa specifically
associated with AIDS that can cause transient diarrhea in immunocompetent individuals but can cause
debilitating, and potentially life-threatening chronic diarrhea in AIDS patients. These organisms are Isospora
belli, treated with trimethoprim-sulfamethoxazole (or other ...
Answer updated on: 12 Feb 2020
Myosin light chain kinaseKinase for contraction
phosphatase for relaxation
Answer updated on: 12 Feb 2020
Local interleukin-1 (IL-1) and tumor necrosis factor effect
The underlying disease is Multiple Myloma: Hypercalcemia in multiple myeloma, where there is bone marrow infiltration by tumor has been ascribed to the release of osteoclast activating factors by the tumor cells. Osteoclast-induced bone resorption may occur in discrete focal areas (lytic lesions) or throughout the skeleton. The high ...
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