The Cardiovascular System Flashcards
Arteries
Vessels that carry blood away from the heart to the body
Veins
Vessels that carry blood toward the heart from other body parts
Cardiac muscle
Involuntary muscle found in the heart cardio vascular system. The system comprised of the heart and blood vesssels.
What chemical messengers does the heart produce to regulate processes in the body by blood stream
Hormones
Tissue
Lower level than organs
Systole
The portion of the cardiac cycle in which the heart expels blood
Diastole
the period of relaxation that occurs between heartbeats, when the heart’s chambers refill with blood
Sinoatrial node
A pacemaker that controlls the lub dub of the heart
Plasma
Clear pale yellow component of blood that carries red blood cells, while 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 acid. Buffers maintain the proper PH of the body.
Lymphocyte
A category of white blood cells that includes natural killer cells, B-cells, helper T-cells, and cytotoxic T-cells
Lymph
Clear fluid that moves throughout the lymphatic system to fight disease
Macrophage
A large white blood cells that ingest foreign materials.
Leukocyte
White blood cells, which protect the body against disease