The Mechanics of Water The Science of Nutrition Perhaps you have heard the phrase “water is life”. When it comes to the human body‚ nothing could be more accurate. The system of fluids in the body that water affects controls everything from nerve impulse to movement; it is even part of the very structure of our bodies. The following will discuss the vital connection between different systems in the body and how they use water to maintain proper health and function. We will discuss what happens
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Nervous systems consists of the central nervous system (brain and spinal cord) and the peripheral nervous system (cranial and spinal nerves) Brain is divided into 3 major areas 1. Cerebrum Pairs of lobes 2. Brain stem 3. Cerebellum Four lobes are: Frontal-largest lobe‚ concentration‚ abstract thought‚ information storage‚ memory and motor function‚ Broca’s area (motor control of speech)‚ affect‚ judgement‚ personality and inhibitions Parietal- sensory lobe‚ analyzes sensory information
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There are four major tissues in the human body. One of the major tissues is the epithelial issue that covers the surface of the body. It helps line the body cavities and organ cavities. There is no extracellular matrix between the cells that are located in the epithelial tissues because they are closely packed. The epithelial is also composed of one or more layers of packed cells. The other major tissue is the connective tissue‚ which is more diverse and abundant‚ compared to the other tissues
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react (withdrawal reflex from pain) 1 1/3/2013 Components of Reflex Arc 1. Receptor: site of stimulus 2. Sensory neuron: transmits afferent impulse to central nervous system (CNS) 3. Integration center: one or more synapses in CNS 4. Motor neuron: conducts efferent impulse to effector 5. Effector: muscle/glands respond to impulses Monosynaptic & Polysynaptic Spinal Reflex Arcs Spinal reflexes: initiated & completed at spinal cord level without involvement of higher brain centers
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neuromuscular irritability for conduction of nerve impulses‚ regulation of acid-base balance (through sodium bicarbonate and sodium phosphate)‚ participation in cellular chemical reactions and membrane transport. * Potassium: K+ 3.5-5.0 mmol/L: Potassium maintains the osmotic balance of the ICF space. Potassium is the major intracellular electrolyte and contributes to many important cellular functions including the transmission of nerve impulses. As the predominant ICF ion‚ it exerts a major
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and single‚ long axons that branch only at the ends. Neurons may be classified by the direction in which they carry nerve impulses. Afferent‚ or sensory‚ neurons carry nerve impulses to the brain or spinal cord. A stimulus may initiate the impulses directly in an afferent neuron. The body also has many sensitive cells called receptors that react easily to stimuli and initiate impulses in the afferent neurons with which they are in contact. There are many types of headaches; some can be serious but
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University of Phoenix Material Brain Structures and Functions Worksheet Below you will see two columns: Brain Structure and Function(s). Items listed under the column‚ “Brain Structure” will list a region of the brain‚ while items under the column titled “Function(s)” will describe the general behavior‚ skill‚ and/or activity of the associated brain structure. Fill in the blank for each of the statements below‚ either listing the brain structure responsible for the function described‚ or providing
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peripheral nervous system is often referred to as the ‘reactor’ within the human body‚ as this includes the sensory and motor nerves‚ connecting the CNS with the sense organs‚ glands and muscles within the body. The foundation within the central nervous system is the neuron; neurons are cells within the body which specialise within a specific area. Neurons which are nerve cells are specifically used to transmit‚ and carry information throughout the body. Neurons are used to transmit by electrical
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THE SENSES Hilgard morgan and Sartain explain that there are more than eight senses that we use to explore and learn about the world.Each of these senses has a specific sense organ within which are receptor cells or receiving mechanisms that are sensitive to certain stimuli in the environment. The Eye Is the organ of vision‚ is sometimes compared to a camera lens because it works roughly the same way as the latter which focuses images of objects at various distances o the film as it
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Chapter 5 Outline •Sensation is the detection of physical energy from the environment which weencode as neural signals. •When we organize and interpret our sensations‚ it is known as perception •The beginning level of sensory analysis is also known as bottom- up processing •Top-down processing is the information processing guided by higher-level mental processes‚ as when someone constructs perceptions drawing on our experienceand expectations. •Bottom up processing is sensory analysis that begins
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