The heart consists of four chambers: there are two at the top called the atria and two at the bottom known as the ventricles. The heart has its own pace maker called the sinoatrial (SA) node which is a small mass of specialized cells in the heart’s right atrium. The sinus node produces electrical pulses…
Definition The term “cardiovascular disease” is often used interchangeably with “heart disease”— a term that generally refers to conditions that involve narrowed or blocked blood vessels that can lead to a heart attack, chest pain (angina) or stroke. Other heart conditions, such as infections and conditions that affect your heart’s muscle, valves or beating rhythm…
Heart disease can be defined as “any disorder that affects the heart. The term “heart disease” may be used incorrectly (as a synonym for coronary artery disease). Heart disease is synonymous with cardiac disease but not with cardiovascular disease which is any disease of the heart or blood vessels”. The heart is a muscular organ…
Paresthesia is defined as “subjective cutaneous sensations (e.g., cold, warmth, tingling, pressure, etc.) that are experienced spontaneously in the absence of stimulation”. Paresthesia is associated with abnormal burning or prickling sensations commonly felt in the hands, arms, legs and feet. It may also occur in other areas of the body and usually does not come…
The heart is a specialized muscle that contracts regularly and continuously, pumping blood to the body (via the left ventricle) and the lungs (via the right ventricle). A heart attack or myocardial infarction results from insufficient supply of oxygen-rich blood to the heart muscle. Blood is supplied to the heart muscle by the coronary arteries….