Blood performs several vital functions in the human body. These include:
Transportation: Blood transports oxygen from the lungs to the body’s tissues and carbon dioxide from the tissues to the lungs. It also transports nutrients, hormones, and waste products throughout the body.
Regulation: Blood helps in regulating body temperature, pH levels, and fluid balance. The blood's pH level remains between 7.35 to 7.45, which is slightly alkaline.
Protection: Blood plays a key role in immune defense by carrying white blood cells that fight infections. It also helps in the healing process by clotting and preventing excessive blood loss from injuries.
Homeostasis: Blood helps maintain the body’s homeostasis by distributing heat, stabilizing blood pressure, and balancing the body's electrolytes.
Conclusion:
Blood is essential for maintaining the overall health of the body by performing critical functions like transportation, regulation, protection, and homeostasis.