NEET MDS Shorts
74744
Oral SurgeryLocal anaesthesia is ineffective in localized infection.
98597
General MicrobiologyThe reaction tested by adding concentrated sulfuric acid to a 24-hour peptone water culture is Cholera red reaction, This reaction tests for the presence of cholera vibrios, which produce hydrogen sulfide gas when their culture is acidified with sulfuric acid. The gas reacts with the ferric chloride present in the medium to produce a characteristic red color.
69072
Anatomy
Facial Artery: 1: True, it has cervical and facial portions. 2: True, it arises from the external carotid artery above the lingual artery. 3: True, it crosses the mandible at the anterior edge of the masseter muscle. 4: False, the cervical portion lies beneath the platysma,
but the facial portion does not exactly lie "superficial in the carotid
triangle"; rather, the facial artery travels more superficially than the
cervical part in its course.
59308
Oral Medicine
High amylase levels in pleural fluid can indicate either a pancreatic or an esophageal origin of the effusion. It is not specific to one condition and further diagnostic tests are needed to determine the source.
45317
MedicineA solitary pulmonary nodule (SPN) is a single, small, well-defined lesion in the lung. The investigation of choice for evaluating an SPN is a computed tomography (CT) scan.
60471
RadiologyThe best image obtained if duplicating film is exposed to UV rays.
65977
Dental Materials
A primer increases the surface energy of the tooth structure, enhancing the ability of the bonding agent to wet and infiltrate the surface.
99873
PhysiologyAngiotensin I is formed by the action of renin on Angiotensinogen, which is produced by the liver and released into the bloodstream.
11232
PeriodonticsThe buccal marginal gingiva receives its main blood supply from the supraperiosteal vessels, which are located above the periosteum (a layer of connective tissue that covers the bone). These vessels are part of the periodontal ligament's blood supply and provide nutrients to the superficial tissues of the gum
59433
PeriodonticsAn enamel pearl located on the distal furcation of a maxillary molar with furcation involvement can be best treated by flap surgery and odontoplasty.