The integumentary system involves skin‚ nails‚ nerves‚ hair‚ and glands. The main act of the integumentary system is to protect the body from the atmosphere. It works to protect from illnesses‚ body temperature and body moisture. In sequence for this to happen‚ the integumentary system works together with all different systems in our body. Functions of integumentary system protects‚ secrets‚ maintains body temperature‚ absorbs‚ and receives
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TMA 2 Part 1 Describe how neurons in the central nervous system communicate. Using examples‚ discuss how this has helped us to understand human behaviour. Human cognition‚ emotion‚ motivation and ultimately life is made possible by neurons in the central nervous system (CNS). This essay will briefly describe the processes involved in neuronal communication and discuss how this knowledge has helped improve our understanding of human behaviour‚ specifically with regards to neurological
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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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RESPIRATORY SYSTEM A complete‚ schematic view of the human respiratory system with their parts and functions. Latin: systema respiratorium The respiratory system (or ventilatory system) is a biological system consisting of specific organs and structures used for the process of respiration in an organism. The respiratory system is involved in the intake and exchange of oxygen and carbon dioxide between an organism and the environment. The primary function of the respiratory system is to supply
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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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“Bell’s palsy is an unexpected and rather sudden form of facial paralysis or severe facial nerve weakness that is most common but not limited to the ages of 15 through to 60.”[1] As evidenced in the photograph‚ “Bell’s palsy affects the facial nerves that control eye and mouth movement and frowning on one side of the face.”[2] The facial nerve or seventh cranial nerve controls most of the muscles in the face and parts of the ear. “This nerve travels through the narrow fallopian canal in the skull
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The building blocks of our body ’ s neural information system are neurons. Each neuron is composed of dendrites‚ a cell body‚ axon with myelin sheath‚ and vesicles with neurotransmitters. The neuron receives information from sense receptors or from chemical messages from neighboring neurons via its dendrites‚ which pass the information to the cell body. The cell body fires an impulse‚ called the action potential‚ down the axon. The impulse is protected and sped along its way by the myelin sheath
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The Human Body Systems By Yash Dhayal‚ Mathew Nemet‚ and Tom Battaglini Table Of Contents Overview * Skeletal system - Functions and Parts * Muscular System - Types of Muscles * Integumentary System - Functions * Circulatory System - Parts of the Circulatory System * Immune System - Organs and Cells of he Immune System * Respiratory System - Parts of the Respiratory System * Digestive System * Urinary System * Endocrine System * Nervous System Overview *
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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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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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