many veins, the tunica intima is equipped with pockets that act as one-way valves. These valves prevent the back flow of blood and allow the veins to act as supplemental pumps that help to keep the blood following in one direction, back toward the heart. The activity of the skeletal muscle that surround the veins will create the pressure that derives the venous pump. 2- Functions; - and oxygen the blood in the capillaries into the interstitial flued and then into the cells. Carbone dioxide and…
and magnesium intoxication. Magnesium prevents the release of pre-synaptic acetylcholine from both sympathetic and neuromuscular junctions.(93)Hypermagnesaemia causes blockage of neuromuscular transmission and depresses the conduction system of the heart and the sympathetic ganglia. Clinically, one of the earliest effects of magnesium intoxication is the disappearance of deep tendon reflexes. This is often seen at magnesium concentrations…
Collagen synthesis: Collagens, which are synthesised by fibroblasts, provide strength and integrity for all tissues in the body and therefore play a particularly vital role in wound repair. Collagens are a key component of all phases of wound healing. Immediately after injury, exposed collagen comes into contact with blood, promoting platelet aggregation and activating chemotactic factors involved in the response to injury. Later collagen becomes the foundation of the wound ECM. Invading…
there were several concerning cues that made him an at risk patient. Even before observations were taken Mr Jones’s age, weight and intense chest pain clearly indicated his need for immediate action to evaluation his condition because of the risk of heart complications. After observations Mr Jones had a total Q-ADDS score of 3 and a pain score of 7/10, most concerning was his O2 saturation at 92% and his severe crushing pain in his chest which had been going on for an hour and a half and had…
As said before, Frogs do have respiratory system that in return helps the cardiovascular system, they have two lungs and one heart, with 3 chambers, they breathe in air through not only their nostrils but skin as well. That’s right, Frogs have a thin membranous tissue for skin and after it goes through cellular respiration (C6H12O6 + 6O2 = 6CO2 + H2O + ATP), the CO2 leaves through…
The lymphatic system is a serious of ducts, nodes, nodules and lymph vessels among other structures and components that teams up to fight off bacteria and foreign substances that enter the body. The system is part of the immune system and it relies on various types white blood cells called lymphocytes that fight off bacteria, reduce inflammation, and respond to allergic reactions. The white blood cells are produced in the marrow of the bones beginning as stem cells. The stem cells…
also going to talk about the heart diseases and strokes caused by high blood pressure.…
pain. He has had mild, left lower abdominal cramping pain for about 3 days, which has worsened in the past 8 hours. He has also had nausea, fever, and chills. On examination he is in obvious pain, has a fever of 38.6°C (101.5°F) and has an elevated heart rate (tachycardia). His abdominal examination is notable for absent bowel sounds, diffuse tenderness, and rigidity when…
Tetralogy of Fallot is a condition in which a combination of four heart defects are present at birth. The condition is usually treated with surgery in childhood. Parents of children with Tetralogy of Fallot should take precautions both before and after their child has surgery to prevent problems related to the condition or its repair from occurring. YOUR CHILD'S SYMPTOMS Your child may have symptoms of Tetralogy of Fallot until a corrective surgery is done. Seek medical care if your child has…
Cerebrovascular accident (CVA) is also known as stroke for short. A stroke is a disease that does not allow the arteries to carry oxygen to the brain. They are the fifth top causes of casualty in America. Knowing the signs and symptoms of a stroke and seeking medical attention may decrease the risk of death. There are a few diverse types of strokes, Transient ischemic attack, hemorrhagic stroke, and ischemic strokes. The first one is transient ischemic attack also known as TIA; it is a clot…