653 results found

#### How Does Exercise Effect The Body?

Amandeep Gill GCSE Coursework How Does Exercise Effect The Body? Aim : My aim is to find out how exercise effects the body, particularly looking how your heart rate changes from a stationary position to the after effects of the activity of my choice. The exercises I have chosen to carryout are sprinting, jogging, walking and performing star jumps. Word Equation Formula for Respiration, Glucose + Oxygen Carbon Dioxide + Water + Energy Symbol Equation Formula for Respiration, C6 H12 O6 + 6O2 6CO2 + 6H20 + Energy I will be using the formula for respiration in the latter stages of my experiment and showing how it is related to exercise? Equipment Used, The following is a list of the equipment I will be using for my practical experiment: Stop Clock - Used to time various stages of the experiment, e.g. 30 seconds for stationary pulse. Tape Measurer - Used to measure the twenty- five metre strip used in the majority of the exercises. Pen and Paper - Used to record the results whilst the activities are taking place. Pair of Trainers - Used instead of school shoes, as they can often be painful when running in and this could effect the pace in which the experiment is carried out at. Towel - Used after the practical experiment has taken place. Diagrams of the Equipment, Prediction, From previous scientific knowledge, I predict that when doing

• Word count: 2477
• Level: GCSE
• Subject: Science

#### How does Exercise affect the pulse rate

Nazneen Rajabali How does Exercise affect the pulse rate? What is the pulse? The pulse is felt by the beating of the heart or blood vessel. The pulse is specially felt when a finger is put on top of an artery. In an artery, the pulse is felt when the artery expands and contracts. The walls of the artery are made up of elastic walls. The contracting of the heart muscles forces blood into your arteries and because the walls of the arteries are elastic they can take this pressure. They expand and contract as the blood is pushed through and this is what is felt as your pulse. To feel your pulse you need to find a main artery in your body. The most common place to find a pulse is on your wrist or the side of your neck. The resting pulse of an average human is 70 beats per minute. However, during exercise the rate my increase to 200 beats per minute. Prediction I predict that by increasing the amount of exercise I do, my pulse rate will also increase. I have researched and used my scientific knowledge to predict this. I have researched how the body changes during exercise so I know that the more exercise I do my pulse rate will go up: How the body changes during exercise? The body changes during exercise. Firstly, the muscles start to work harder so respiration speeds up in muscle fibers to provide extra energy. When respiration takes place the waste product, carbon

• Word count: 1157
• Level: GCSE
• Subject: Science

#### 'Give an account of the physiological effects of alcohol on the human body.'

Introduction: In this essay I'm going to write about the effects in which alcohol has on various organs in the human body. I will also describe how alcohol affects humans psychologically. This will demonstrate clearly the impact that alcohol has towards human beings. What is Alcohol? The scientific name for alcohol is Ethanol; CH3CH2OH, a group of chemical compounds whose molecules contain a hydroxyl group, -OH, bonded to a carbon atom. Pure Ethanol is a colourless liquid. Alcohol and Your Brain: In order to understand how alcohol can effect the brain you need to be able to understand how the brain works. (See Figure 1) Lateral surface of left half of brain . Logitudinal cerebral fissure 2. Crebellar hemisphere 3. Cerebellar vermis 4. Olfactory trigone 5. Anterior perforated substance 6. Olfactory bulb 7. Olfactory 8. Optic nerve Base of brain 9. Optic chiasma 0. Hypophysis 1. Mamillary body 2. Pons 3. Medulla oblongata 4. Lateral sulcus 5. Central sulcus Median section of brain 6. Precentral gyrus 7. postcentral gyrus 8. Anterior commissure 9. Corpus callosum 20. Septum pellucidum 21. Fornix 22. Interthalamic adhesion Cerebral hemispheres from above 23. Third ventricle 24. Fourth ventricle 25. Cerebral aqueduct 26. Epiphysis or pineal body 27. Lamina tecti or section of midbrain Each section of the brain has a different role to

• Word count: 2034
• Level: GCSE
• Subject: Science

#### To find out what is happening to our body after the vigorous training. And what is different before the exercise and later after few attempts? We are looking the pulse rate per minute.

To find out what is happening to our body after the vigorous training! And what is different before the exercise and later after few attempts? We are looking the pulse rate per minute. I have to prove in my experiment what happens after the vigorous. (When our body beats up e.g. heart or after the sport) By doing this I have been selected with a partner to work out experiment. When you go for jog you starting to lose the energy, which provide from the food, the more we jog the more we lose the energy! Energy can be lose in varieties of ways such as biking, playing, breathing in and out etc... I have find out that whether is that true that our blood provides all the organs of our body with the materials needed to stay alive and healthy. Blood flows around our body through network of blood vessels, which makes up our circulatory system. Our blood is kept flowing around this system by the action of our heart. I can find these things by searching main purposes, which are heart beater and blood beater in our hands or nick. We have count how many times does our heart beats per minute before the jog and after, we have to do at least three times to show whether is it true or false but we not exactly sure and we not allow to guess it or give our opinion it got to be actual facts. When we did the experiment about three times then we have divide it by three, which will give us the

• Word count: 1092
• Level: GCSE
• Subject: Science

#### Comparison of Two Short Stories -"A Confession Found In A Prison" and "The Tell-Tale Heart".

Tom Chaloner 11P Comparison of Two Short Stories-"A Confession Found In A Prison" and "The Tell-Tale Heart" I am looking at two short stories called 'A Confession Found in a Prison' and 'The Tell-Tale Heart'. Both are murder stories and there are similarities as well as differences in the plot, characters and style of writing. Both stories are told in first person, from the point of view of the murderer but their behaviour and attitude to their bad deeds is very different. In 'A Confession' he says, "Starting, like the guilty wretch I was" which shows that the murderer feels guilt for what he has done. Whereas the murderer in 'The Tell-Tale Heart' is proud of what he has done, there is no evidence of guilt, "I could hardly contain my feelings of triumph", and, "I then smiled gaily". This is evidence of the different feelings towards the murder from each culprit. The Tell-Tale Heart's murderer is triumphant and pleased with the way that he carried out the deed, he boasts of the murder very proudly. The murderer in A Confession is riddled with self-hatred and shame; he is full of guilt and doesn't protest against his sentencing in any way. 'The Tell-Tale Heart' is written as if the murderer is having a conversation and he wants to convince himself he is not mad, yet many signs of madness are displayed throughout the story. He is almost arguing with himself

• Word count: 1427
• Level: GCSE
• Subject: Science

#### Does listening to music affect your heart rate?

Does listening to music affect your heart rate? Introduction: The pulse is an indirect sign of blood pressure and heart beating, which is controlled by autonomic nervous system. Cardiovascular and endocrine responses to musical perception which have been studied largely show different changes depending on the situation of the subject (musical experience, handedness, gender, age) and the type of musical stimulus (sedative, harmony music or rhythmic rock music detailing in simple musical elements like intervals, chords, pitch, timbre; or complex musical structures). In a trial, the heart rate was found to decrease after listening to classical and New Age music but not to change after listening to popular music. The heart rate was found to increase if the music contains a fast beat or slow down if the music encourages physical and mental relaxation. Although changes of heart rate and blood pressure as related to listening to music have been reported by many investigators, the complicated problem is still obscure and need deep investigation to clarify its mechanism. Aim: To study and find out if music actually affects our heart rate and if so how? I will also attempt to see if the heart rate changes whilst listening to different types of music at different volumes. Prediction: I predict that listening to music should actually increase/speed up the heart rate as more

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• Word count: 887
• Level: GCSE
• Subject: Science

#### Myocardial infarction

Case Study 2006 Myocardial Infarction Sharon Thomas Waitakere Hospital Abstract Of This Case Study Have you ever wanted to know what a Myocardial Infarction is and what its all about. Read on and find out through my eyes, about a patient I was caring for - what happened to him in both his body and mind. The following will show what a Myocardial Infarction ( MI ) is, what happens in the patients body and what care is involved by the medical and nursing teams. All of this to ensure my patient would walk out of hospital and again feel like productive member of society that he most certainly was before his cardiac event. Also within the body of this case study will be evidence based articles to support statements made. Congruent to this, will be reflection on how all that transpired with this man affected me and how my nursing practice has developed because of it. This patients health related journey and the anonymous intimacy that took place, came to a happy conclusion for both nurse and patient. Judith Christiansen's Nursing Partnership Model was published in 1990 and was developed in response to the knowledge gaps in the nursing system in New Zealand ( Taylor, 1995 ). This partnership model is a theoretical framework for nursing practice. It has 3 major concepts - these being nursing partnership, the passage and the context. Anonymous Intimacy is one of 3

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• Word count: 3908
• Level: GCSE
• Subject: Science

#### During pregnancy the embryo, consisting of a small number of identical cells, undergoes a series of changes which results in the production of a body consisting of specialized tissues and cells. Describe the changes which occur during this process

During pregnancy the embryo, consisting of a small number of identical cells, undergoes a series of changes which results in the production of a body consisting of specialized tissues and cells. Describe the changes which occur during this process and briefly discuss how the process is controlled: In my essay I am going to discuss how the cells develop at different stages of change, cleavage, gastrulation and implantation then I am going to discuss the formation of a variety of organs and go into detail with one. Fertilization and Cleavage 24 hours post fertilization the zygote, formed by fusion of the two haploid gametes (sperm and ovum) undergoes mitotic division. After fertilization of the egg, cleavage gives rise to 2 cells, 4 cells, 8 cells, 16 cells and 32 cells. At this stage the embryo consists of similar cells. Then subdivision occurs into the inner cell mass and the trophoblast giving rise to cells destined to form the embryo and the extra-embryonic tissues. It takes around a week for these cleavages to occur and for the embryo to move down the Fallopian tube into the uterus, where it will implant in the wall of the uterus. At about the time of implantation the inner cell mass becomes subdivided into two tissue layers and the embryo forms a disc. Gastrulation Is the fourth phase of development. During this phase, cells from the surface of the blastula

• Word count: 2251
• Level: GCSE
• Subject: Science

#### Exercise and Heart Rate

Exercise and Heart Rate Introduction The heart rate of a human varies from 150 beats per minute in young children, to about 60 in the aged. However, I am going to investigate whether doing exercise may alter the rate substantially. Prediction From my scientific knowledge I predict that the rate of respiration will increase as a result of exercise. I think that there will be a gradual increase to begin with, but as the body has to work harder I believe that the heart will then increase at a faster rate. When the exercise is complete I think that the heart rate will gradually decrease back to the resting pulse rate. I have made these predictions because I believe that the supply of Oxygen to the muscles will decrease which will push the heart rate up. I also think that a lot of energy will be used up as the exercise takes place, thus resulting in a further increase. If the body is unable to continue aerobic respiration anaerobic respiration will take place. This results in lactic acid being formed. Finally, the CO2 levels would also rise which would also contribute to the heart rate rising. Method I am going to carry out step-up exercise on a 3cm stair on my eleven-year-old sister. The heart rate will be taken by feeling the pulse in the neck. Here is the procedure of the experiment: · The resting pulse will be taken and recorded. · Five-minute exercise begins with a

• Word count: 733
• Level: GCSE
• Subject: Science

#### Reflective Profile - The Practice of Midwifery

Candidate Number: 1309261 Reflective Profile The Practice of Midwifery The following reflective profile will address the use of fetal monitoring during antenatal visits and specifically the use of the hand held Doppler and Pinards stethoscope. This topic relates to competencies numbers 8.2 and 8.3 as documented in the Midwifery Practice Assessment, Year 1, Week 12. In the interest of anonymity, pseudonyms have been used in compliance with NMC (2002). To facilitate in the construction of this work the Gibb. (1988) reflective cycle has been utilised (see appendices). The Gibb. (1988) reflective cycle initially suggests that in order to reflect successfully, the event which took place should be described. Present at the event were a midwife called Christine and a student Emma whose roles on this particular day were to see a number of women at an antenatal clinic. A woman, Jo, who was a primigravida and 36 weeks gestation, had an appointment to see the midwife. She was known to Christine and had seen her on a number of previous occasions. Christine and Emma performed the antenatal check but explained to Jo that the NICE guidelines, (NHS, 2003) now suggest that the fetal heart is not auscultated routinely as it had been previously. Jo conveyed that she would not be happy with this arrangement and requested it was performed irrespective of these guidelines. Christine understood

• Word count: 1676
• Level: GCSE
• Subject: Science