NEET MDS Shorts
95291
Community DentistryStandard deviation is a statistical measure that quantifies the amount of variation or dispersion in a set of values. It indicates how much individual data points differ from the mean.
89818
Physiology
Bitter taste is mediated by the activation of bitter receptors, which are G protein-coupled and result in an increase in intracellular Ca+2 and subsequent neurotransmitter release, not by the activation of sodium channels as seen in salty taste transduction.
84276
Oral SurgeryWalsham's forceps are a surgical instrument commonly used in maxillofacial surgery. They are designed to reduce and manipulate small, fine bony structures, such as the nasal bones in the case of nasal fractures.
60756
Oral Pathology
Gemination is a developmental anomaly in which a single tooth bud attempts to divide, resulting in an enlarged or bifid crown. Key features of gemination: Appears as a single large tooth Usually has one root May show two root canals Total number of teeth remains normal when the abnormal tooth is counted as one.
50008
PhysiologyThe middle piece of a sperm cell contains mitochondria, which provide the energy needed for sperm motility and movement towards the egg.
93568
Periodontics
32500
Physiology
Answer: 4) Stimulation of mitochondrial oxidative phosphorylation
Explanation: Thyroid hormones, particularly T3, increase metabolic rate by enhancing the activity of mitochondrial oxidative phosphorylation. This leads to increased ATP production and overall cellular energy metabolism.
71321
Oral SurgeryWhich of the following is not a theory for local anaesthetic action: None of the above.
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.
34333
Oral PathologyPyostomatitis vegetans is a rare inflammatory condition of the oral mucosa that is strongly associated with inflammatory bowel disease (IBD), particularly ulcerative colitis. It is characterized by the presence of numerous small, yellow-white pustules on an erythematous base, which coalesce to form vegetative or papillary projections with a "snail track" appearance.