Tag: science & technology

Diabetes mellitus occurs when the pancreas produces insufficient insulin or the body becomes resistant to insulin effects. Insulin is the hormone responsible for regulating blood glucose levels by facilitating glucose uptake into cells. Without adequate insulin function, blood sugar levels rise dangerously.

The appendix is a finger-like projection attached to the cecum, which is the beginning of the large intestine. It is part of the large intestinal tract, not the small intestine, stomach, or liver.

A biopsy is a medical procedure where tissue samples are taken from a living body (in vivo) for microscopic examination to diagnose diseases like cancer. Post-mortem tissue analysis is called an autopsy, not a biopsy.

Barium sulfate is a radiopaque contrast medium used as a barium meal or enema to visualize the alimentary canal (digestive tract) on X-rays. The coating highlights the esophagus, stomach, and intestines, revealing structural abnormalities. It is not used for blood grouping or brain imaging.

Bronchitis is inflammation of the bronchial tubes, which are the air passages that carry air to and from the lungs. It is a respiratory tract disease affecting the bronchi, not the blood, bladder, or liver.

ECG (electrocardiogram) records the heart electrical activity and is the primary diagnostic tool for cardiac arrhythmias, heart attacks, and other heart conditions. It does not diagnose brain, kidney, or lung conditions - those use EEG, renal function tests, and spirometry respectively.

Dialysis is a procedure that artificially removes waste products and excess fluids from blood when kidneys fail to function properly. It is the primary treatment for kidney failure (renal failure), not heart weakness, brain diseases, or other conditions.

Vitamin K is essential for the synthesis of clotting factors II, VII, IX, and X in the liver. Without adequate Vitamin K, blood cannot clot properly, leading to bleeding disorders. Vitamins B1, B2, and D are involved in energy metabolism, vision, and calcium absorption respectively.

A normal adult human has approximately 5-6 liters of blood, which is about 7-8% of total body weight. This volume is essential for oxygen transport, nutrient delivery, waste removal, and immune function. Volumes of 3-4 liters are too low, while 8-12 liters are excessive.