NEET MDS Shorts
12440
General Medicine
In growth hormone deficiency, which is part of hypopituitarism, patients may exhibit increased subcutaneous fat and a high-pitched voice due to the lack of growth hormone affecting muscle and bone development as well as adipose tissue distribution.
85748
NEETMDS
The acini of serous salivary glands are lined by simple cuboidal epithelium.
51263
Physiology
Answer: 4) Mobilizing energy and preparing the body for immediate action
Explanation: The sympathetic nervous system is activated during the fight-or-flight response to mobilize energy and prepare the body for immediate action. It does this by increasing heart rate, dilating pupils, and diverting blood flow to muscles and the brain, among other effects.
87061
NEETMDS
In iron deficiency anemia, the body/s iron stores are low. This leads to decreased serum ferritin and serum iron levels. To compensate, the body increases the production of transferrin, the protein that transports iron, which increases the total iron binding capacity (TIBC)
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.
71703
Oral SurgeryThe advantage of chisel and mallet over bur in removing bone is that no coolant is necessary.
85313
ProsthodonticsAll are consequences of edentulism except decreased length of lip.
69266
State PSC PYQTongue thrusting causes constant anterior pressure, preventing proper overlap of front teeth and resulting in an open bite.
50718
Public Health Dentistry
Pit and fissure caries are initiated by the accumulation of food debris and
bacteria in deep, narrow fissures and pits on the tooth surface, which are
protected from the normal cleansing mechanisms of the mouth, even in the absence
of a thick, mature dental plaque biofilm.
Plaque is necessary for the initiation of proximal, smooth surface, and root
surface caries.
47907
INI CET
Beta-titanium (TMA) wires are weldable and biocompatible. While they are difficult to solder using conventional methods compared to stainless steel, the claim that they "cannot" be soldered is generally the intended exception in such dental contexts, though they are specifically prized for weldability.