Thursday, June 7, 2018

BLOOD

BLOOD

* Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

* Blood is circulated around the body through blood vessels by the pumping action of the heart.

* In animals with lungs, arterial blood carries oxygen from inhaled air to the tissues of the body, and venous blood carries carbon dioxide, a waste product of metabolism produced by cells, from the tissues to the lungs to be exhaled.



FUNCTIONS

*Supply of oxygen to tissues.

* Supply of nutrients such as glucose, amino acids, and fatty acids.

* Removal of waste such as carbon dioxide, urea, and lactic acid.

* Immunological functions, including circulation of white blood cells, and detection of foreign material by antibodies.

* Coagulation, the response to a broken blood vessel, the conversion of blood from a liquid to a semisolid gel to stop bleeding.

* Messenger functions, including the transport of hormones and the signaling of tissue damage.

* Regulation of core body temperature.

* Hydraulic functions.

No comments:

Post a Comment

IRRAWADDY DOLPHIN