This is an article about circulation in animals. For transport in plants, see Vascular tissue. For the band, see Circulatory System.
A circulatory system (cardiovascular system in biology classes) is an organ system that moves substances to and from cells; it can also help stabilize body temperature and pH (part of homeostasis). There are three types of circulatory systems (from simplest to most complex): no circulatory system, open circulatory system, and closed circulatory system.
Heartfelt: Reprogram Yourself For a Healthy Heart - Considers the beliefs, attitudes, and emotions that influence developing heart disease, with strategies.
Meta Description: [ Psychologist offers tools for increasing well being. Positive Psychology, Mind/Body/Spirit counseling, Cutting edge techniques: EMDR, HeartMath, Stress Management, stress, optimism and health. Compassionate, supportive, ]
Heartmates - For spouses and families of the heart patient. Support on-line on Interactive Connections section, archived back to 1997. Description of resources, free and for sale, addressing the psycho-social and spiritual needs of spouses and families of the heart patient. Not a medical site.
Meta Description: [ Spouses and Loved ones - Resources to address informational and psychosocial, spiritual needs of patients and families with a life-threatening/chronic illness. And educates health care professionals to meet family needs. ]
Hypertension Crusade - By Dr. Johann Georg Schnitzer. Offers a variety of books on hypertension, cardiovascular health, and obesity.
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