Functions of the Cardiovascular System
Sensory receptors in joints between bones send signals about body position to the The cardiovascular system delivers oxygen, hormones, nutrients and white The urinary system eliminates waste products and maintains water balance. Knowing the functions of the cardiovascular system and the parts of the body that are part of it is critical in understanding the physiology of the human body. Knowing the functions of the cardiovascular system and the parts of the body that are part of it is critical in understanding the physiology of the human body.
This can restrict blood flow or in severe cases stop it all together, resulting in a heart attack or stroke. Stroke involves blockage of the blood vessels to the brain and is another major condition of the circulatory system, according to Mitchell Weinberg of the North Shore-LIJ Health System.
Another circulatory disease, hypertension — commonly called high blood pressure — causes the heart to work harder and can lead to such complications as a heart attack, a stroke, or kidney failure, the NLM noted. Around 75 million American adults, or one in every three adults, have high blood pressure, according to the Centers for Disease Control and Prevention.
An aortic aneurysm occurs when the aorta is damaged and starts to bulge or eventually tear, which can cause severe internal bleeding. This weakness can be present at birth or the result of atherosclerosis, obesity, high blood pressure or a combination of these conditions, according to Weinberg. Peripheral arterial disease also known as PAD typically involves areas of narrowing or blockage within an artery, according to Jay Radhakrishnanan interventional radiologist in Houston, Texas.
In addition, chronic venous insufficiency also known as CVI involves areas reflux or backward flow within the superficial veins of the lower extremities. CVI is diagnosed with ultrasound as the venous reflux can be measured accurately by ultrasound, which ultimately guides treatment.
Study of the circulatory system Cardiologists are specialists who are certified to diagnose, treat and prevent disease of the heart, arteries and veins. Before being certified as cardiologists, those aspiring to the specialty must be certified in internal medicine.
Then cardiologists can become certified in one of several cardiology subspecialties, including transplant cardiology, cardiovascular disease, clinical cardiac electrophysiology and interventional cardiology. You use your eyes to see, your ears to hear and your muscles to do the heavy lifting.
In fact, most body parts are far more complicated than that, while some seem to have no business being inside there at all. Test Your Body Smarts You use your eyes to see, your ears to hear and your muscles to do the heavy lifting.
The Ebers Papyrus, an ancient Egyptian medical document, provides some of the earliest writing on the circulatory. It describes the connection of the heart to the arteries. Renin converts angiotensinogen into angiotensin I, and ACE produced in the lung converts angiotensin I into biologically active angiotensin II Figure 1.
The immediate and short-term effect of angiotensin II is to raise blood pressure by causing widespread vasoconstriction. Regulation of Osmolarity Blood pressure and osmolarity are regulated in a similar fashion. Severe hypo-osmolarity can cause problems like lysis rupture of blood cells or widespread edema, which is due to a solute imbalance.
Urinary System: Facts, Functions & Diseases
Inadequate solute concentration such as protein in the plasma results in water moving toward an area of greater solute concentration, in this case, the interstitial space and cell cytoplasm. If the kidney glomeruli are damaged by an autoimmune illness, large quantities of protein may be lost in the urine. The resultant drop in serum osmolarity leads to widespread edema that, if severe, may lead to damaging or fatal brain swelling. Severe hypertonic conditions may arise with severe dehydration from lack of water intake, severe vomiting, or uncontrolled diarrhea.
When the kidney is unable to recover sufficient water from the forming urine, the consequences may be severe lethargy, confusion, muscle cramps, and finally, death. Recovery of Electrolytes Sodium, calcium, and potassium must be closely regulated. This loss of conformation may be a consequence of the breaking of hydrogen bonds. Move the pH away from the optimum for a specific enzyme and you may severely hamper its function throughout the body, including hormone binding, central nervous system signaling, or myocardial contraction.
Proper kidney function is essential for pH homeostasis.
Circulatory System: Facts, Function & Diseases
Everyday Connection Stem Cells and Repair of Kidney Damage Stem cells are unspecialized cells that can reproduce themselves via cell division, sometimes after years of inactivity. Under certain conditions, they may differentiate into tissue-specific or organ-specific cells with special functions.
In some cases, stem cells may continually divide to produce a mature cell and to replace themselves. Stem cell therapy has an enormous potential to improve the quality of life or save the lives of people suffering from debilitating or life-threatening diseases. There have been several studies in animals, but since stem cell therapy is still in its infancy, there have been limited experiments in humans. Respiratory System The respiratory system supplies oxygen to the blood and removes carbon dioxide.
Lungs, larynx, pharynx, trachea, bronchi The brain monitors respiratory volume and blood gas levels. The brain regulates respiratory rate.
Digestive System The digestive system stores and digests foods, transfers nutrients to the body, eliminates waste and absorbs water.
Stomach, esophagus, salivary glands, liver, gallbladder, pancreas, intestines Digestive processes provide the building blocks for some neurotransmitters. The autonomic nervous system controls the tone of the digestive tract. The brain controls drinking and feeding behavior.
Functions of the Cardiovascular System
The brain controls muscles for eating and elimination. The digestive system sends sensory information to the brain. Reproductive System The reproductive system is responsible for producing new life. Testes, vas deferens, prostate gland, ovary, fallopian tubes, uterus, cervix Reproductive hormones affect brain development and sexual behavior.
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- Heart disease risk factors also linked with urinary tract problems
- Functions of the Cardiovascular System
The brain controls mating behavior. Urinary System The urinary system eliminates waste products and maintains water balance and chemical balance.