About this video

• Video Title: Plasma Proteins ||Blood Physiology||Lectures || in hindi|| Ashish Agrawal
• Channel: Ashish Agrawal
• Speakers: Ashish Agrawal
• Duration: 00:31:29

Overview

This video lecture by Ashish Agrawal explains the concept of plasma proteins within the context of blood physiology. The speaker covers the types of plasma proteins, their formation, and their various functions, with a particular emphasis on their role in maintaining colloid osmotic pressure and their significance in the context of Starling forces. The lecture is delivered in Hindi.

Key takeaways

• Plasma Protein Classification: Plasma proteins are broadly categorized into albumin, globulins, and fibrinogen, with albumin being the most abundant. Other minor plasma proteins are also mentioned.
• Formation: The liver is the primary site for the synthesis of most plasma proteins (albumin, globulins, fibrinogen), with gamma globulins being produced in lymphoid tissues.
• Colloid Osmotic Pressure (COP): Plasma proteins, especially albumin due to its high concentration, are crucial for maintaining colloid osmotic pressure, which helps retain fluid within the blood vessels and prevents edema.
• Starling Forces: The lecture explains Starling forces, which are four pressures (capillary hydrostatic pressure, interstitial fluid hydrostatic pressure, plasma colloid osmotic pressure, and interstitial fluid colloid osmotic pressure) that govern the movement of fluid across capillary walls.
• Functions of Plasma Proteins: Key functions discussed include maintaining COP, acting as transport proteins for various substances (hormones, drugs, fatty acids), buffering acid-base balance, immunological roles (antibodies), blood clotting (fibrinogen), maintaining blood viscosity, and serving as a reserve of amino acids.
• Clinical Relevance: Low plasma protein levels, due to conditions like liver cirrhosis or kidney disease, can lead to edema and other complications.