The average volume of blood in an adult human body is approximately 5 to 6 liters.

Plasma is primarily composed of about 90% water, which serves as a solvent for various substances in the blood.

The normal pH range of human blood is tightly regulated between 7.35 and 7.45, which is essential for proper physiological function.

The lymphatic system is responsible for transporting lymph, a fluid that contains infection-fighting white blood cells, and plays a crucial role in the immune system.

White blood cells are part of the immune system and are primarily responsible for fighting infections and foreign invaders.

White blood cells are crucial for the immune response, helping to defend the body against infections and foreign invaders.

Platelets, or thrombocytes, are essential for blood clotting, helping to prevent excessive bleeding when injuries occur.

The lymphatic system is responsible for transporting lymph, which contains immune cells, and helps in the removal of waste products from tissues.

Type O blood is known as the universal donor because it lacks A and B antigens, making it safe for transfusion to any blood type.

White blood cells, or leukocytes, are the key players in the immune response, helping to defend the body against infections.

Angiotensin II is a potent vasoconstrictor that plays a key role in regulating blood pressure.

Plasma is the liquid component of blood that carries nutrients, hormones, and waste products throughout the body.

While blood plays many roles, it does not produce hormones; hormones are produced by glands in the endocrine system.

Plasma is composed of approximately 90% water, with proteins, electrolytes, and nutrients making up the remaining 10%.

Valves in the heart prevent the backflow of blood, ensuring it flows in one direction through the heart chambers.

The kidneys filter blood to remove waste products and excess substances, maintaining homeostasis in the body.

The right atrium receives deoxygenated blood from the body through the superior and inferior vena cavae.

Arteries are the blood vessels that carry oxygenated blood away from the heart to the tissues, except for the pulmonary arteries.