Cardiovascular System Flashcards
Cardiovascular system
A.K.A the circulatory system moves blood around the body. Allows for nutrient distribution and waste removal.
Arteries
Vessels that carry blood away from the heart toward body parts
Veins
Vessels that carry blood toward the heart from other body parts
cardiac muscle
Involuntary muscle found in the heart cardiovascular system. The system comprised of the heart and blood vessels. Split into 4 chambers “atria” upper part and “ventricles” lower part.
Hormones
A chemical messenger produced by a gland and transported by the bloodstream that regulates specific processes in the body.
Tissue
A group of cells with similar structure that function together as a unit, at a lower level than organs.
Systole
The portion of the cardiac cycle in which the heart expels blood. Heart contracts.
relaxation
Release of tension in a muscle
Diastole
relaxation of the heart muscles.
Plasma
Clear pale-yellow component of blood that carries red blood cells, white blood cells, and platelets throughout the body.
hemoglobin
Protein in red blood cells that carries oxygen from the lungs to the rest of the body.
buffer
A solution of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffers maintain the proper pH of the body.
lymphocyte
A category of white blood cells that includes natural killer cells, B-cells, T-cells, cytotoxic T-cells.
lymph
Clear fluid that moves throughout the lymphatic
system to fight disease
macrophage
A large white blood cell that ingests foreign material
