The amount of blood pumped by the left ventricle of the heart in one contraction. The stroke volume is not all the blood contained in the left ventricle; normally, only about two-thirds of the blood in the ventricle is expelled with each beat. Together with the heart rate, the stroke volume determines the output of blood by the heart per minute (cardiac output).
- Stroke, National Institute Neurological Disorders
One of the National Institutes of Health in the U.S., the NINDS’s mission is to “support and conduct research and research training on the normal structure and function of the nervous system and on the causes, prevention, diagnosis, and treatment of more than 600 nervous system disorders including stroke, epilepsy, multiple sclerosis, Parkinson’s disease, head […]
- Stroke, silent
Small strokes that do not cause any symptoms. Silent strokes still damage brain tissue. The most common symptom of a stroke is weakness or paralysis on one side of the body or the other. There may be a partial or complete loss of voluntary movement and/or sensation in a leg and/or arm. A stroke can […]
Aerobics with a stroller. Strollerobics are exercises characteristically performed by new mothers, incorporating strollers that contain their new babies. Stollerobics were invented in the mid-1990s in California.
The supportive framework of an organ (or gland or other structure), usually composed of connective tissue. The stroma is distinct from the parenchyma, which consists of the key functional elements of that organ. The stroma of the thyroid gland is the connective tissue that supports the lobules and follicles of the thyroid gland. The Greek […]
An earth element and metal with atomic no. 38, atomic wt. 87.62 that is used in a radioactive form for imaging tests and as a treatment for cancer. First detected in lead mines near Strontian, Scotland, strontium is present in water and food and, in trace amounts, the human skeleton.