Brain Is Highly Metabolic And Important Organ Of The Body
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Brain is highly metabolic and important organ of the body. Even though it weighs only 2% body weight, however, requires disproportionate amount (~20 %) of the total blood flow. Unprecedented fall in cerebral blood flow (CBF) would quickly lead to unconsciousness and, if sustained for longer period of time would result in brain damage and death. Therefore, CBF is tightly regulated in the brain, as it facilitates the delivery of essential substrates required for metabolism and removal of metabolic by products.
1.1.1 Mechanism regulating CBF
The cerbrovasculature is always under the combined influence of a number of physical and chemical stimuli that adjust vascular caliber/resistance so as to alter the blood supply to different parts of the brain (Bayliss, 1902; Lassen, 1959). Autoregulation and metabolic coupling are 2 important mechanism which regulates the CBF to the brain. Autoregulation ensures that constant blood flow is supplied in the face of changes in perfusion pressure. The mechanism through which autoregulation controls the blood flow during pressure changes is thought to be myogenic in nature but other factors such as metabolic (CO2, O2, and so on) factors also assert some influence (Osol et al., 2002; Paulson et al., 1990; Peterson et al., 2011). Furthermore, metabolic coupling mechanisms ensure that blood flow is increased in active regions. CBF is highly variable across the brain and largely dependent on neuronal activity, thus, an increase in neuronal
Homeostasis Particularly in Relation to Temperature Control
In complex organisms organs are united to form organ systems such as
the digestive, reproductive, nervous and muscular systems. The fact
that all of the organ systems generally work in a highly coordinated
manner suggests strongly that organisms possess distinct physiological
control mechanisms that make the coordination of such highly complex
processes possible. One of the most interesting features of such
control
cannot be used for measurement from outside the body because they are such low penetrating power. A sheet of paper stops alpha particles.
Beta particles have a modest penetrating power, thus they produce useful results in the area of their release, and they can be distinguished by sensitive counting tools. Block of wood stops beta particles.
Gamma rays are highly energetic, and they can be readily discovered by radiation counters used outside the body. A thick concrete wall stops gamma rays.
Radioisotopes
differences between a human and an animal’s body system or even more interesting, the anatomies of any two animals? Most important, people can explore how an animal sustains and grows itself. Also, you are able to learn animal management, which is useful for people working in a range of industries. Additionally, a body system consists of various organs which work together to carry out a special job, which is vital to living a healthy life. Most important, researching the anatomies of both, pigs and
Introduction:
The organs of our body are controlled by many systems in order to function correctly and efficiently in order to survive within the environment we live in. These include the heart, stomach and intestines and other vital organs and body systems. All of the systems in our body are regulated by a part of the nervous system called the autonomic nervous system (ANS). The ANS is part of the peripheral nervous system and it controls many organs and muscles within the body. Rather bizarrely
physical, and behavioral defects that may develop in the unborn child when its mother drinks during pregnancy. These defects occur primarily during the first trimester when the teratogenic effects of the alcohol have the greatest effect on the developing organs. The symptoms associated with FAS have been observed for many centuries, but it was not until 1968 that Lemoine and his associates formally described these symptoms in the scientific literature, and again in 1973 when Jones and associates designated
Anatomy and Physiology for Health and Social Care Assignment 3
Body Systems and their role in Energy Metabolism and The Inter-relationship between Body Systems
Anatomy and Physiology for Health and Social Care Assignment 3
Body Systems and their role in Energy Metabolism and The Inter-relationship between Body Systems
“Explain the physiology of two named body systems in relation to energy metabolism in your body”
Cardiovascular system
The cardiovascular system has many
balance. Homeostasis is important because by maintaining homeostasis, organisms remain healthy, strong and stable, with protection from the attacks of foreign organisms. Exposure to harmful bacteria, hormones, metabolic rate and the disease can affect homeostasis in your body systems. One such system is the Endocrine system. Endocrine diseases result when a gland produces too much or too little of the endocrine hormone which is known as a hormone imbalance. Such as Diabetes a metabolic disease in which
essay we are discussing the Anatomy and Physiology of the following systems within the body of Dogs, Cats and Birds. All the systems described have an important role to play in maintaining Homeostasis which means the body is actively regulated to remain nearly constant in its functions.
Cardiovascular System (Dogs and Cats).
Anatomy. The Heart is a four-chambered muscular organ that pumps the blood around the body. The Heart lies in the Mediastinum, within the Thoracic Cavity. The Heart lies just to
Introduction:
The organs of our body are controlled by many systems in order to function correctly and efficiently in order to survive within the environment we live in. These include the heart, stomach and intestines and other vital organs and body systems. All of the systems in our body are regulated by a part of the nervous system called the autonomic nervous system (ANS). The ANS is part of the peripheral nervous system and it controls many organs and muscles within the body. Rather bizarrely
In the early stages of the diabetes process, the pancreas can compensate for the insulin resistance by secreting even more insulin. Eventually the body becomes completely resistant to the insulin, and there is where this disease can get very hard to manage. This process can take a couple of years and early detection and treatment can really help slow down the process. Smoking cigarettes and drinking alcohol can also be a contributing factor.
These are the main causes of type two diabetes, but there