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Heart is ______ in origin
The heart is mesodermal in origin. During embryonic development, the mesoderm layer gives rise to the cardiovascular system, including the heart, blood vessels, and blood cells. This is a fundamental concept in developmental biology.
It converts fibrinogen into soluble fibrin
Thrombin is the enzyme that converts fibrinogen into fibrin during the blood clotting process. Fibrin forms a mesh that traps blood cells to form a clot, which is essential for stopping bleeding and initiating wound healing.
Tricuspid valve is situated in between
The tricuspid valve is located between the right atrium (auricle) and the right ventricle. It prevents the backflow of blood from the right ventricle to the right atrium during ventricular contraction.
Blood is flowing in pulmonary vein is
The pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart. This is one of the few veins in the body that carries oxygen-rich blood.
The wave representing of ventricles diastole is
The T wave in an ECG (electrocardiogram) represents ventricular repolarization, which corresponds to the ventricles' diastole or relaxation phase.
Effcts of nicotine in blood circulation
It decreases the carrying of oxygen of Haemoglobin
Carbon monoxide (CO) binds to haemoglobin more effectively than oxygen, forming carboxyhaemoglobin. This decreases the blood's oxygen-carrying capacity, leading to reduced oxygen delivery to tissues and organs.
Number of leucocytes is 1 cubic mm
The normal range for the number of leucocytes (white blood cells) in a cubic millimeter of blood is typically between 5000-8000. Leucocytes are a crucial component of the immune system.
SA - node is located at
The sinoatrial (SA) node, also known as the pacemaker of the heart, is located in the right upper corner of the right atrium. It is responsible for initiating the electrical impulses that set the rhythm for the heart to beat.
In disease erythroblastosis foetalis
Erythroblastosis fetalis is a condition that leads to the destruction of the baby's red blood cells (RBCs). This typically occurs when there is an incompatibility between the blood types of the mother and the baby, most commonly involving the Rh factor.
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.