NEET MDS Shorts
41357
Physiology
Answer: 2) Activation of potassium channels causing hyperpolarization
Explanation: IPSPs are typically generated when a neurotransmitter binds to GABA receptors on the postsynaptic membrane of a neuron, causing potassium channels to open and leading to efflux of K+ ions. This hyperpolarizes the neuron, reducing the likelihood of an action potential.
48805
General MedicineAmphoric breathing is seen in pneumothorax
82949
INI CET
Alginate is derived from alginic acid, which is extracted from brown seaweed. It reacts with calcium sulfate to form a stable gel.
96416
NEETMDS
Laminin is the most abundant and important glycoprotein in all basement membranes. It has distinct binding domains that interact with multiple components of the extracellular matrix (ECM), such as collagen type IV, and with cell-surface receptors like integrins, which helps anchor cells to the basement membrane.
95404
INI CET
A North RAE (Right Angle Endotracheal) tube is typically used for oral surgeries, including bilateral temporomandibular joint (TMJ) ankylosis, as its angle allows the tube to be directed superiorly over the patient's head. A South RAE tube is typically used for nasal intubation.
35150
ProsthodonticsWhich of the following is painless: pregnancy tumour.
62337
Oral PathologyTrotters syndrome involves the nasopharynx and is caused by malignant tumors (usually nasopharyngeal carcinoma) affecting the eustachian tube opening and surrounding structures. The syndrome includes unilateral conductive hearing loss, unilateral serous otitis media, and trigeminal neuralgia due to tumor involvement of the nasopharyngeal region and skull base.
68662
Endodontics
Endodontic therapy (root canal treatment) is generally effective for conditions like a periapical (PA) abscess, horizontal root fractures (depending on location), and chronic abscesses, provided the tooth is restorable.
69769
Oral Medicine
Amoxicillin, clindamycin, and cephalexin are all commonly recommended as premedications for patients with valvular heart disease or congenital cardiac defects before dental procedures. The choice of antibiotic may depend on the patient's allergies and the type of infection.
19090
Physiology
The primary mechanism of H+ secretion by parietal cells is through the action of the H+-K+ ATPase pump, also known as the proton pump. This enzyme is responsible for actively transporting H+ ions into the gastric lumen while moving K+ ions into the cells, thereby acidifying the gastric content.