What items fights disease and infection?
Lymphocytes: These small white blood cells play a large role in defending the body against disease, according to the Mayo Clinic.
The two types of lymphocytes are B-cells, which make antibodies that attack bacteria and toxins, and T-cells, which help destroy infected or cancerous cells.
Which of these types of blood vessels carry blood back to the heart?
The arteries (red) carry oxygen and nutrients away from your heart, to your body’s tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body’s tissues.
What disease occurs when the heart is unable to pump enough blood to supply the needs of the body?
Heart failure is a chronic, progressive condition in which the heart muscle is unable to pump enough blood to meet the body’s needs for blood and oxygen.
What is the pale yellow liquid part of the blood?
Plasma is a pale yellow mixture of water, proteins and salts. One of the functions of plasma is to act as a carrier for blood cells, nutrients, enzymes, and hormones. This is the liquid portion of the blood.