Answer: 1. Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
2. Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in. Red blood cells are responsible for carrying oxygen and carbon dioxide. Platelets are responsible for blood clotting. White blood cells are part of the immune system and function in immune response.
3.Within the bone marrow, all blood cells originate from a single type of unspecialized cell called a stem cell. When a stem cell divides, it first becomes an immature red blood cell, white blood cell, or platelet-producing cell.
4. Epinephrine and norepinephrine, hormones secreted by the adrenal medulla, raise blood pressure by increasing heart rate and the contractility of the heart muscles and by causing vasoconstriction of arteries and veins. These hormones are secreted as part of the fight‐or‐flight response.
Clinical manifestations of stroke include severe headaches accompanied by vomiting and vertigo.
<h3>Clinical manifestations of stroke</h3>
The symptomatology depends on the location of the ischemic process, the size of the ischemic area, the nature and functions of the affected area and the availability of collateral flow.
The main sequelae resulting from a stroke are the neurological deficits that will be reflected throughout the body, unilaterally or bilaterally, as a result of the location and size of the brain injury, which may present as signs and symptoms of loss of voluntary control in relation to motor movements.
With this information, we can conclude that the main symptoms of stroke are severe headache, nausea, and vomiting.
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Certain contraindications exist for laparoscopic appendectomy, including extensive adhesions, radiation, or immunosuppressive therapy, severe portal hypertension coagulopathies. Laparoscopic appendectomy is contraindicated in the first trimester of pregnancy. Hope this answers/helps
Removal of mole on the abdomen primary prevention strategy does the nurse recommend to a client concerned about development of cancer.
Cancer occurs when a few of the body's cells grow out of control and spread to other internal organs. The trillions of cells that make up the human body are home to cancer, which can develop practically anywhere. Cancers are any of the many diseases that are characterized by the expansion of abnormal cells that divide uncontrollably, have the ability to penetrate, and cause harm to good physiological tissue.
Cancer cells acquire gene alterations that transform them from healthy cells to cancer cells. These gene mutations can be passed down via families, develop gradually as we age and our genes deteriorate, or show up if we are exposed to chemicals that damage our genes, such as alcohol, tobacco smoke, or ultraviolet (UV) radiation from the sun.
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