A human body built in with various types of cells. Fundamental unit of life in a human body is cell. A matured human body is made up trillion of cells and depend on body environment to live and function. Cells, tissues and organs perform a different function in the body. To maintain a constant internal environment for well being, individual cells of the body required three important component oxygen, nutrients and removal of waste.
Body temperature is controlled by controlling blood stream to the skin sweating shivering. The body 's water content this is controlled to secure cells by preventing an excessive amount of water from entering or abandoning them. Water substance is controlled by water misfortune from: the lungs when we breathe out the skin by sweating the body, in pee created by the
The Cardiovascular System (Known as circulatory system) is an important system within the human body which functions with specific organs such as the heart, blood vessels – including capillaries, veins, and arteries along with small blood vessels, and blood. The cardiovascular system works by your inhaling process. As you inhale, the air goes towards your lungs. Since the air contains oxygen, your blood stream absorbs this through your lungs. The heart forces the ‘oxygenated’ blood through a range of connecting blood vessels specifically speaking arteries which travel around your body providing your cells with the necessary materials that the blood contains.
CONCEPT 5: NURSING ASSESSMENT OF RESPIRATORY SYSTEM This concept is taken from Block 4, Module 6 which is entitled as ‘Assessment of respiratory system’. The respiratory system comprises of different organs used in respiration. Respiration involves inhalation and exchange of oxygen and carbondioxide between living organisms and the environment. The organs of respiration include; the nose, pharynx, larynx, trachea, 2 bronchi, bronchioles, 2 lungs and muscles of breathing (the intercostal muscles and the diaphragm). 5.1 Personal context Respiratory system assessment is the process of evaluating the functioning and condition of a patient’s respiratory system.
Anatomy and Physiology Assignment 2 – Essay The Lymphatic System The lymphatic system has three primary functions. It drains excess interstitial fluid from tissue spaces and returns it to the blood, enabling circulatory blood volume to be maintained; transports lipids and lipid-soluble vitamins A, D, E, and K absorbed through the gastrointestinal tract; and is responsible for the body’s adaptive (specific) immunity, ie. defences against microbes that breach its innate (non-specific) immunity (eg. skin, fever, inflammation): it adjusts or adapts to perform specific responses to specific microbes. In this essay, I will focus on the lymph nodes, particularly their role in adaptive immunity, and how they relate to the lymphatic system as a whole,
CT scans, an external test using a Computed Tomography machine to take multiple x-Rays of the digestive tract to find out what is going on. Both the CT scan and the standard x-ray will likely require you to ingest a substance that helps the digestive tract appear on the x-ray. The doctor may give you a barium enema to highlight the structures in your lower GI tract, so the doctor can see exactly what is going on in the digestive tract. The doctor may require you to eat solid food containing a substance called barium, then on the machine this will tract the barium as it passes through your digestive tract. They also may have the patient swallow special markers and have several different x-rays taken to track their passage through the digestive system.
Digestion of materials by endocytosis: Lysosomes may fuse with vesicles or vacuoles formed by endocytosis and release their enzymes into it for digestion. The material for digestion may be food (protozoa) or a foreign body like parasite (defense purpose) .The products of digestion are absorbed and assimilated leaving undigested which are released outside through exocytosis (vacuole migrates and attach with cell membrane and release its contents). 2. Autophagy: process by which unwanted structures within the cell are engulfed and digested within lysosomes .they first enclose by single membrane ,usually derived from smooth ER and structure then fuses with a lysosomes to form an “autophagic vacuole”, In which the unwanted material are digested. This is part of the normal turnover of cytoplasm organelles replacing older with new ones.
The process of digestion starts in the mouth, then makes its way to the stomach and large intestine, and concludes in the small intestine. At each step along the way, specific enzymes break down specific types of food. This process is chemically balanced as each site along the digestive tract has a different degree of acidity that allows certain enzymes to function while restraining others. Each specific enzyme can bind to only one specific substrate, or group of allied chemical substances. After leaving the stomach, food pulp enters the upper portion of the small intestine where the pancreas (digestive organ that feeds enzymes into the gut) provides pancreatic enzymes to further break down the
Without the heart and blood, the body is unable to function. As long as there is blood flowing through the body, the body strives to maintain homeostasis. For example, should one exercise, the body metabolises blood faster due to the need for oxygen around the body meaning the heart pumps faster to meet the demands of the body, in turn maintaining equilibrium and homeostasis. √ Blood is a vital tissue in sustaining life, health and wellbeing. Made up of various components its key task is to transport messages, deliver oxygen and other important minerals and gasses all over the body, whilst also acting as the body’s waste management service.
The liver has a portal vein as well as a hepatic vein. It also has unique exchange blood vessels similar to capillaries, called “sinusoids.” How do these unique structures determine the function of the organ? • The livers main function is to filter and process the blood it receives. The portal vein and hepatic vein then deliver the nutrient rich blood to the capillaries (sinusoids). The blood seeps in the sinusoids on its way to the hepatic veins, and then to the vena cava.
How the cardiovascular system works? Image result for the cardiovascular system heart without labels The cardiovascular system consists of two circuits that blood travels through; pulmonary and systemic. Exercise has an impact on these systems, causing the heart to pump blood faster around the body, which allows you to exercise for longer. The pulmonary circuit carries blood to the lungs to get oxygen and then back into the heart, whilst the systemic circuit carries blood around the body to transport the oxygen and returns the de-oxygenated blood to the heart. Image result for real human hearts Function of the heart When your heart beats it pumps blood to the lungs and around all of the body.