What are the human organs and their function? BLADDER -A hollow muscular organ that stores urine before expelling it from the body. BONES - The bones provide 5 functions. They protect other vital organs‚ i.e. ribs protect the lungs. Support the body in an upright position. They are attached to muscles to help provide movement of the body. Bone marrow produces blood. Store salts inside provides a mineral reservoir for the body. BRAIN -The brain is the master control center of the body. It receives
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Content 1. Introduction 2. The unique properties of stem cells and the ways of reception. 3. The application of stem cells in curing the worldwide diseases. i. The effectiveness of using stem cells in diabetes treatment and possible risks of this therapy. ii. What are the benefits and risks of using stem cells in curing cardiac disorders‚ such as ischemic disease and stroke? iii. How neural disorders‚ such as Parkinson’s‚ Alzheimer’s and spinal cord injuries can be treated by stem cells
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THE NERVOUS AND THE ENDOCRINE SYSTEM. Humans need both the Nervous and the Endocrine systems basically because they do different things in different ways. They both have a co-ordination role and send instructions to other parts of the body. The nervous system does this by way of neurotransmitters‚( chemical messengers)‚ which are able to get messages through at very high speeds‚ and the endocrine system by way of hormones‚( also chemical messengers)‚ which are released from glands and travel
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Communication‚ Homeostasis & Energy Communication & Homeostasis Outline the need for communication systems within multicellular organisms‚ with reference to the need to respond to changes in the internal and external environment and to co-ordinate the activities of different organs. Organisms need to respond to external stimuli‚ e.g. temperature‚ oxygen concentration and levels of sunlight. These may be over time‚ e.g. winter fur to summer fur‚ or quickly‚ e.g. changing size of pupils. Internal
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content‚ ion content‚ body temperature and blood glucose concentration. The brain is the centre that monitors and controls the body temperature. The blood glucose concentration is concentrated by the pancreas‚ which produces a hormone known as the insulin; this hormone is able to reduce the blood glucose levels. If there is not enough produced then the disease diabetes is developed. Negative feedback mechanisms: ‘a body system that monitors a system output‚ that shuts off once an optimum output
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Homeostasis What is homeostasis? Homeostasis is the mechanism in our body that regulates and maintains a stable and constant environment. This enables our body to respond to changes in the environment around us as. The homeostatic mechanisms in our body‚ observe and monitor conditions and will then make a judgment whether to change the way the body functions is order to adapt to the outside surroundings better. The main organs involved in homeostasis are; the brain‚ liver‚ skin and kidney’s.
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Reflex arc pathway synapse p28 Menstrual cycle FSH‚ oestrogen‚ LH‚ ovulation p30 Artificial control of fertility Contraceptive pill IVF treatment p32 Controlling conditions Water & ions – kidneys Temperature Blood glucose – insulin p34 Controlling fertility Attempt Questions B1a. 2. Healthy eating p38 Diet and exercise Components of balance diet Energy requirements Metabolic rate Notes understand p40 Weight problems BMI Obesity –
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c. Describe the path that urine takes to exit the body‚ starting in the kidney. Urine collects in the kidneys travels through 2 thin tubes Ureters to bladder Muscles in the ureter walls tighten and relax to push urine downward away from the kidneys Sphincter is like a rubber band which keeps the opening of the bladder so that urine can pass down through the urethra urethra‚ tube that allows urine exits the body. 4. Discuss your dissection of the components of the endocrine system of the
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12 Hunger‚ Eating‚ and Health Why Do Many People Eat Too Much? 12.1 12.2 12.3 12.4 Digestion‚ Energy Storage‚ and Energy Utilization Theories of Hunger and Eating: Set Points versus Positive Incentives Factors That Determine What‚ When‚ and How Much We Eat Physiological Research on Hunger and Satiety 12.5 12.6 12.7 Body Weight Regulation: Set Points versus Settling Points Human Obesity: Causes‚ Mechanisms‚ and Treatments Anorexia and Bulimia Nervosa ISBN 0-558-78571-9 Biopsychology
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is a multisystem disease with both biochemical and anatomical/structural consequences. (Wolfsdorf et al: 2009) It is a chronic disease of carbohydrate‚ fat‚ and protein metabolism caused by the lack of insulin‚ which results from the marked and progressive inability of the pancreas to secrete insulin because of autoimmune destruction of the beta cells. Type 1 DM can occur at any age. It occurs most commonly in juveniles but can also occur in adults‚ especially in those in their late 30s and early 40s
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