NEET MDS Shorts
39960
RadiologyInjecting radiopaque dye into the joint space to visualize the joint is referred to as arthrography.
91253
Physiology
The cholinergic system, which is part of the parasympathetic nervous system, stimulates the parietal cells in the stomach to release hydrochloric acid (HCL) through the activation of muscarinic M1 receptors. This is crucial for the digestion of food and the maintenance of gastric pH.
51076
NEETMDS
The retromolar pad is a significant anatomical landmark in the mouth for denture construction. Several structures insert into or around this area:
The pterygomandibular raphe connects the buccinator and superior constrictor muscles, and its fibers are associated with the retromolar pad.
Fibers of the temporalis muscle often insert into the area of the retromolar pad.
The buccinator muscle fibers are also connected to this region via the raphe.
70984
Pathology
Nuclear cytoplasmic asynchrony refers to a condition where the nucleus and
cytoplasm of a cell do not develop at the same rate. This can occur in various
forms of anemia and other pathological conditions. Here's a detailed explanation
of the concept and its relevance to the options provided: correct answer is:
1. Megaloblastic Anemia: Megaloblastic anemia is a type of anemia characterized
by the presence of large, immature, nucleated red blood cells (megaloblasts) in
the bone marrow and peripheral blood. This condition is primarily caused by a
deficiency in vitamin B12 or folic acid, which are essential for DNA synthesis
during cell division. The nucleus of the cells divides more slowly than the
cytoplasm, leading to an asynchronous development and the formation of large,
abnormal cells. In megaloblastic anemia, the nucleus is often large and
hyperchromatic (darkly stained), while the cytoplasm is relatively less
developed and pale. Therefore, this option is the most appropriate answer.
2. Fe Deficiency Anemia: Iron deficiency anemia is the most common type of
anemia worldwide, resulting from a lack of iron in the body. Iron is a critical
component of hemoglobin, which is responsible for carrying oxygen in red blood
cells. In this condition, the body produces smaller than normal red blood cells
(microcytic) that lack hemoglobin, leading to decreased oxygen transport. The
nucleus and cytoplasm of the erythrocytes are typically smaller than normal, and
there is no significant asynchrony in their development. Hence, this option is
not a characteristic feature of nuclear cytoplasmic asynchrony.
3. Erythroblastosis Fetalis: This is a condition that occurs when an Rh-negative
mother has an Rh-positive fetus. The mother's immune system produces antibodies
against the fetal red blood cells, leading to their destruction. This causes
anemia in the newborn. However, erythroblastosis fetalis is not typically
associated with nuclear cytoplasmic asynchrony. The anemia is a result of
hemolysis (destruction of red blood cells) rather than an intrinsic defect in
the development of the cells themselves. Thus, this option is not the correct
answer for this characteristic feature.
1. Megaloblastic anemia
This is because megaloblastic anemia is the condition where nuclear cytoplasmic
asynchrony is a hallmark feature due to the disproportionate growth of the
nucleus and cytoplasm in red blood cell precursors, resulting from vitamin B12
or folic acid deficiencies affecting DNA synthesis.
98141
Pharmacology
Tyrosine kinase inhibitors are used in the treatment of: Chronic myeloid leukemia
Acute lymphoblastic leukemia ( philadelphia chromosome positive cases )
Head and neck malignancies
Non small cell carcinoma lung
Gastrointestinal stromal tumours
Hepatocellular cancer
Renal cell carcinoma
Pancreatic cancer
Colorectal cancer
63586
General PathologyVenous thrombosis is not part of Virchow’s triad; the triad includes injury to the vein, hypercoagulability, and venous stasis.
65418
Oral PathologyAngioneurotic edema is characterized by asymptomatic facial swelling.
45702
INI CET
Bien's theory, also known as the vascular theory, suggests that tooth movement is related to the flow of fluid within the periodontal ligament (PDL) during the application of orthodontic forces.
51058
General Medicine
Movement disorders, particularly those associated with basal ganglia dysfunction such as dystonia and chorea, are the most common neurological manifestations of Wilson’s disease due to the primary toxic effect on the basal ganglia from copper deposition.
11406
Dental Materials
the initial release is generally higher, making 0.075 mg during the 1st week
the rate of release is typically highest during the initial few hours and days after placement and then decreases with time