Brachial artery

The Effect of Jumping Jacks on Heart Rate and Blood Pressure I. Introduction It is known that exercise effects how quickly a heart beats and thus how much pressure is needed to pump a person’s blood through their veins. There have been several studies over the years that have tested this. An experiment recoded by Nicolas Tordi, Laurent Mourot, Eglantine Colin, and Jaques Regnard, compared several factors between interval exercise and constant exercise. Two of the factors they monitored were…

During high-intensity exercise, the intramuscular accumulation of lactic acid has long been considered one of the most important factors in fatigue (Fitts RH.1994; Green HJ 1997; Allen DG,1995; Gladden LB.2004;Sahlin K.1986). Intense physical activity results in the production of lactate, and the accumulation of lactate in exercising muscle is thought to be a major determinant of fatigue (Hermansen L, Osnes J.1972; Stamford BA,1981). 2.1 Mechanism of muscle fatigue due to lactic acid Most…

Similar aspects of the endocrine and nervous systems are also located within major arteries, responding to changes in the cardiovascular system during hypovolemic shock. When baroreceptors sense there has been a fluid loss and that blood pressure has decreased, a “sympathetic response” throughout the body where nerve impulses cause the heart rate to increase to attempt to compensate for a decrease in oxygen circulating throughout the body (Tortura 782). An increase in the heart also causes…

Bladder Tissue Type: The bladder is a muscular pouch that holds urine. In the bladder, there is transitional epithelial tissue. This type of tissue has several layers and they can vary in appearance. It looks like a bunch of cubes squished together. The cells vary when they become more stretched. This also allows for contraction and expansion of the bladder. If the tissue did not perform these functions, then our bladder would rupture. The urine would then seep out into our body and cause a…

3. Explain the heart generates and conducts an electrical current. Page 388 The heart has its own built-in conduction system for generating action potentials spontaneously and coordinating contractions during the cardiac cycle. All the cardiac muscle fibers in each region of the heart are electrically linked together. The intercalated disks are connections that electrically join the muscle fibers of the heart into a single unit that can conduct electrical impulses through the entire wall of…

Spina Bifida or “split spine” is a birth defect that is present at birth and can occur anywhere on the spine if the neural tube does not properly close. It is a common type of (NTD) or neural tube defect. When the backbone that supports and forms the spinal cord does not close all the way, it causes damage to the spinal cord and it nerves. This disorder can cause physical and cognitive disabilities that can range from mild to severe. The severity depends on the size and location. There are a few…

A) Explain why transport systems are required in the body? The reasons as to why transport systems are required in the body is because it allows the body to be able to respire and be able to get all that it needs to maintain the same state, for example, oxygen throughout the body as well as nutrients to the cells in the body. An example of a transport system is the Respiratory system. This system is required in the body as it helps the body to take in oxygen, this can be done through the lungs,…

Dilated cardiomyopathy is a disease of the heart muscle that result in weakened construction of an organ and poor blood pumping ability. The disease progresses the heart is getting bigger than a normal, one or more valves may leak. Both the upper and lower heart chambers become enlarged with DCM, but one side is more severely affected. In most case the left-side is exaggerated primarily. The left ventricle is more muscular than right-sided. Moreover, the left ventricle receives freshly…

Averi Kessler Social Change Less than 8 percent of people who suffer from cardiac arrest outside the hospital survive. When someone suffers from cardiac arrest it is best to give the person Cardiopulmonary Resuscitation also know as CPR. Cardiac arrest is one of the leading causes of death in America. Each year, more than 350,000 people outside the hospital have cardiac arrest in the United States. The survival rate really depends on if CPR is given right away or not. Almost 90 percent of…

aneurysm or intracranial aneurysm. There are four major blood vessel s that supply blood to the brain, two carotid arteries and two vertebral arteries. These blood vessels join together to form the Circle of Willis at the base of the brain, smaller arteries leave the circle and branch out to supply brain cells with oxygen and nutrients. The artery junction points may become weak, as the artery wall becomes thinner from dilation, the blood flow causes the weakened wall to swell outward causing a…