“NEURAL CONTROL AND CO-ORDINATION” Co-ordination - It is the process through which two or more organs interact and complement the functions of each other. Neuron - It is the functional and structural unit of nervous system. Therefore‚ the nervous system is also known as NEURAL SYSTEM. Neurons with longer projections are said to be the longest cells in our body. There are about 100 billion neurons and most of them exist in the brain. Some neurons have flask-shaped and are called Purkinje cells
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of sunlight during the winter months (people with SAD usually feel worse from December through February). Scientists don’t completely understand the exact causes of SAD‚ but they believe it is related to a biochemical imbalance in the hypothalamus. The hypothalamus is the basic part of the brain that controls the body’s breathing‚ heartbeat‚ metabolism‚ and hormone release. The effects of SAD include moodiness‚ irritability‚ low energy‚ increased appetite for carbohydrates (foods such as potatoes
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PSYN 101: Introduction to Psychology Dr. Jim Towey Spring 2013 Student: . Chapter 12: Motivation & Emotion 1. Motivation is BEST defined as _____. p. 422 a) the set of factors that activate‚ direct‚ and maintain behavior toward a goal b) the physiological and psychological arousal that occurs when a person really wants to achieve a goal c) what makes you do what you do d) the conscious and unconscious thoughts that focus a person’s behaviors and emotions
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Cerebrum The cerebrum is the largest portion of the brain‚ and contains tools which are responsible for most of the brain’s function. It is divided into four sections: the temporal lobe‚ the occipital lobe‚ parietal lobe and frontal lobe. The cerebrum is divided into a right and left hemisphere which are connected by axons that relay messages from one to the other. This matter is made of nerve cells which carry signals between the organ and the nerve cells which run through the body. Frontal Lobe: The
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breathing d. Pressure e. Reflex center – for coughing‚ sneezing‚ swallowing‚ and vomiting Pons (bridge) is where two respiratory centers are lodge in which works with those in the medulla to regulate breathing. Midbrain runs from the pons to the hypothalamus enclosing the cerebral aqueduct which is the tunnel connecting the 3rd and 4th ventricles. The midbrain helps to relay information for vision and hearing. It regulates several reflexes: • Visual reflex • Auditory reflex • Righting reflex Cerebellum
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thalamus in the brain. In addition to the previous movement‚ secondary thermoreceptor fibers are also affecting the primary sensory cortex as well as the reticular activating system simultaneously. Finally‚ the signal reaches the thermostat in the hypothalamus which is a region within the forebrain‚ located right below the thalamus‚ that is in charge of the autonomic nervous system. Also‚ the autonomic nervous system is in charge of the involuntary response within the human body. Once the signal is registered
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The Human Growth Hormone and Its Effects on Our Bodies as We Age In this paper‚ I will explain what the human growth hormone is; its effects on our bodies as we age. Also‚ show the benefits received by following a prescribed treatment plant from a qualified physician. The results are amazing‚ as you will see; this has prompted more research into the benefits of hormone replacement therapy as we age. What is Human growth hormone:HGH is a compound protein molecule of 191 amino acids linked in a
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associated? The Hassles Scale measures how stressful events‚ ranging from small annoyances to major daily pressures‚ impact our adjustment. 3 Who is Hans Selye? What is the General Adaptation Syndrome and what happens at each stage? What is the Hypothalamus-Pituitary-Adrenal (HPA) Axis? Hans Selye is a Canadian physician who ignited the field of modern-day stress research. His genius was to recognize a connection between the stress response of animals‚ including stomach ulcers and increases in the
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Brain development throughout childhood The first eight years of a child’s life are not only the most important years of a child’s life‚ but also the most rapid period of human development throughout a human life. These years are critical to the emotional and physical growth of a child. By the age of four‚ half of a person’s intelligence potential has already been developed and early childhood experiences can have a lasting effect on personality‚ behavior‚ and learning. (Early‚ 2001) These first
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Excretion • Removal of nitrogenous wastes from the body Nitrogenous wastes • Ammonia o Most toxic o Needs more water for getting excreted o Diffuses across general body surfaces o Examples of organisms excreting ammonia: fishes‚ aquatic amphibians and aquatic insects o Such organisms are called ammonotelic. • Urea o Less toxic o Requires less water for excretion o Terrestrial adaptation for conservation of water o Ammonia Urea o Examples of organisms excreting urea: terrestrial amphibians
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