Ch 5 Cardio WAW Flashcards
Superior & Inferior vena Cava
two large veins that carry deoxygenated blood from the body back to the heart
Anemia
Rapid loss of or inadequate production of red blood cells
Plasma
Liquid portion of the blood
Inflammation
a protective response of the body to injury, infection, or irritation
Lymphatic Terminus
the area behind the collarbones where lymph fluid returns to the circulatory system
Pericardium
The whole double layered membrane structure that encloses the heart
Autoimmune diseases
Occurs when the immune system mistakes self for nonself and attacks itself
Antigens
Anything that can trigger an immune response
Iron
an essential mineral that plays vital roles in the human body
Right atrium
a chamber of the heart that receives deoxygenated blood from the body and pumps it to the right ventricle
Platelets
blood cells that play a crucial role in blood clotting
Erythrocytes
Red blood cells; Carry oxygen from the lungs to the body cells and transports carbon dioxide from the cells to the lungs
Leukocyte
White blood cells; Protect the body by fighting off infections and toxins that invade the body
Lacteals
Lymphatic capillaries located in the vili of the small intestines
Innate
the body’s first line of defense against foreign invaders
Opportunistic Infections
an infection that occurs in people with a weakened immune system
Pulmonary artery
transport deoxygenated blood from the right side of the heart to the lungs for oxygenation
Aorta
Main artery of the body
Vasodilation
The relaxation and enlargement of the arterial walls
Vasoconstriction
The contraction of the arterial walls
Arteries
Thick muscular and elastic vessels that transport oxygenated blood away from the heart
Capillaries
Smallest blood vessels connecting arterioles (which carry blood away from the heart) and venules (which carry blood back to the heart
Veins
Thin blood vessels that carry deoxygenated blood from capillaries back to the heart
Hematoma
bruse; bleeding under the epidermis and sometimes deep within the tissue of the body
Phagocytosis
Process Leukocytes engulf and digest harmful bacteria
