What is true about capillary blood?

Capillary blood is characterized by its slow flow, often oozing from wounds rather than spurting. This is due to the fact that capillaries are small blood vessels that connect arteries and veins, and they are responsible for the exchange of gases, nutrients, and waste between the blood and tissues. Since capillary blood is under lower pressure compared to arterial blood, when a capillary is damaged, it does not result in a rapid spurt. Instead, blood comes out in small amounts and appears to ooze from the site of injury.

Additionally, capillary blood differs from arterial and venous blood in color; it often has a more reddish appearance due to its content of oxygen, but this can vary depending on the specific area of the body sampled. It is also notable that capillary blood tends to clot more readily than venous blood due to the presence of clotting factors being more concentrated in small amounts of blood, thus making it less difficult to clot than indicated in one of the incorrect options.

Understanding these characteristics is essential in veterinary practices, especially when assessing wounds and choosing appropriate methods of bleeding control.