NEET MDS Shorts
64826
BiochemistryProthrombin production in the liver is dependent upon Vitamin K intake
31357
PhysiologyAround day 11 of the menstrual cycle, the rising estrogen level reaches a threshold that has a positive feedback effect on LH secretion, leading to the LH surge. This LH surge is essential for ovulation to occur.
41209
Oral PathologyCherubism is not characterized by unilocular lesions; it is typically bilateral.
76487
Oral PathologyVitamin K deficiency does not affect tooth development.
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NEETMDS
Fexofenadine is the active metabolite of terfenadine that does not block delayed rectifier K channels in the heart and does not prolong QTc interval. It is free of arrhythmogenic potential, does not cross the blood-brain barrier, and does not produce sedation. It has a plasma half-life of 11-16 hrs and duration of action 24 hrs.
51862
OrthodonticsPassive tooth-borne functional appliances are removable and do not require active muscle participation, such as Andersen activator, Woodside and Hawley activator, and expansion activator. The Herbst appliance is a fixed functional appliance.
97733
Oral PathologyLesion of the facial nerve at the stylomastoid foramen leads to paralysis of the orbicularis oculi muscle.
92155
ProsthodonticsTreatment of choice for a patient with a maxillary complete denture with severe bilateral tuberosity undercuts is to remove the tissue on only one side if possible.
53758
Oral Surgery
Osteitis deformans, also known as Paget's disease of bone, is a chronic
condition characterized by abnormal bone remodeling. It typically affects older
adults and can lead to bone enlargement and deformity. When the skull is
affected, it can cause symptoms such as headache, deafness (due to involvement
of the temporal bone and compression of the auditory nerve), and visual
disturbances (due to compression of the optic nerve or changes in the orbital
bones). The gradual enlargement of the maxilla is a classic presentation of
facial involvement in this disease.
Pierre Robin syndrome is a congenital condition involving facial abnormalities
present at birth.
Osteopetrosis is a rare genetic disorder characterized by abnormally dense bones
that are prone to fracture.
Achondroplasia is a common cause of dwarfism, a genetic disorder of bone growth
28460
Physiology
The glomerular filtration barrier is composed of the glomerular capillary endothelium, the basement membrane, and the podocytes (Bowman's visceral epithelium). These three layers work together to filter blood and form the glomerular filtrate, which then enters the renal tubules.