skeleton is often described as a solid‚ moveable framework that supports the body. Bone is a strong and rigid form of connective tissue. It also works as levers and anchor plates to allow movement to take place. Bones also work for alternative body systems for example the blood cells develop in their fatty inner tissue (red marrow). The body draws from mineral stores in bones during crucial times of shortage‚ for instance when calcium is needed for healthy nerve functioning. The skeletons key components
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LEVELS OF ORGANIZATION OF NERVOURS SYSTEM: NEURONS: * STRUCTURE AND FUNCTION: Specialized cell transmitting nerve impulses; a nerve cell. Neurons have specialized projections called dendrites and axons. Dendrites bring information to the cell body and axons take information away from the cell body. Neurons communicate with each other through an electrochemical process. Information is transmitted to the receiving cell at junctions via chemical messengers called neurotransmitters. At this juncture
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Homeostasis is defined as the adjustments a body makes to maintain an environment conducive to life. All of the organ systems in the human body must maintain a steady internal environment for the body to function properly. The factors that need to be controlled are water and salt content‚ PH balance‚ oxygen‚ sugar‚ protein‚ body temperature‚ and blood and glucose concentration. The basic principle of homeostasis is when there is an abnormal internal condition‚ it will be detected and a variation
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auditory nerve and is composed of three divisions‚ the external ear‚ the middle ear‚ and the inner ear. The greater part of which is enclosed within the temporal bone. The ear is looked upon as a miniature receiver‚ amplifier and signal-processing system. The structure of the outer ear catching sound waves as they move into the external auditory canal. The sound waves then hit the eardrum and the pressure of the air causes the drum to vibrate back and forth. When the eardrum vibrates its neighbour
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Two of the most important sensory systems in human body are optical system and auditory system. Optical system or sometime called visual system involved in the process of taken amount of stimuli and transfer it into some figure that we can perceive as images that make senses. Auditory systems involved in sound wave that transduced by drum ear into some kind of vibration that eventually gets converted back into wave what we perceive as noise. There are a lot of similarities in their mechanisms of
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composed of complicated and intricate systems that work together to keep us alive and able to move and process the things we find to be simple such as breathing or blinking. There are 11 systems in our body‚ each in charge of something different and supplying support to the other. Those 11 systems are the‚ nervous‚ skeletal‚ muscular‚ circulatory‚ respiratory‚ digestive‚ endocrine‚ reproductive‚ excretory‚ integumentary and immune systems. I will address every system in the human body as well as provide
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When the coffee is finished‚ our coffee maker’s beeping creates pressure changes‚ which move away from the machine and radiate to the individual’s location across the room. The waves reach the outer ear‚ which contains structures known as the pinnae‚ angled such that sound waves bounce off them and resonate. They enter the auditory canal after being significantly amplified before reaching the tympanic membrane. The waves strike the membrane and cause it to vibrate‚ which subsequently transmits them
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Renal system The renal system consists of two kidneys‚ two ureters which come out of the kindeys and a single bladder which collects the urine before it goes into the urethra. It also involves the sphincter muscle which is located just below the bladder and its purpose is to control the flow of urine. The kidneys have renal veins which take the blood from the kidneys into the main vein in the body which is known as the vena cava‚ they also have short renal arteries which come out of the main vein
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Importance of systems B. The major systems 1. List all the systems a. Circulatory System b. Integumentary System c. Skeletal System d. Muscular System e. Nervous System f. Endocrine System g. Lymphatic System (Immune system is a part of this) h. Respiratory System i. Digestive System j. Excretory System (Urinary system is a part of this) k. Reproductive System C. Systems to be discussed 1. Circulatory System (NCES) 2. Integumentary System 3. Skeletal System 4. Muscular System 5. Respiratory
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The Muscular System: Contraction of Motor Units 1. Define a motor neuron:_____A single nerve cell that branches from the brain or the spinal cord to a muscle or a gland. 2. Define a motor unit: ___A motor neuron and all of the muscle fibers it stimulates. 3. The synapse between a motor neuron and the muscle it innervates is called a ____neuromuscular junction_______. 4. The stimulation of additional motor units will increase the strength of the contraction. This process is called
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