The nervous system controls all activities of the body through the brain, spinal cord, and nerves. It allows the body to react to stimuli in the environment to maintain homeostasis. The central nervous system is made up of the brain and spinal cord. The brain controls functions like thinking, memory, movement, and processing sensory information. It is divided into the cerebrum, cerebellum, and brain stem. The spinal cord connects the brain to the rest of the nervous system. The nervous system uses nerve impulses and reflexes to carry messages through sensory, motor, and automatic nerves.
“The right half of the brain controls the left half of the body. This means that only left handed people are in their right mind.”
Made up of brain and spinal cordActs as body’s control center, coordinates body’s activitiesImpulses travel through the neurons in your body to reach the brainCentral Nervous System is yellow in this diagram.
Made up of all the nerves that carry messages to and from the central nervous system.Similar to telephone wires that connect all of our houses in the communityCentral Nervous System and Peripheral Nervous System work together to make rapid changes in your body in response to stimuli.Peripheral Nervous System is green in this diagram.
Somatic Nervous SystemRelay information between skin, skeletal muscles and central nervous systemYou consciously control this pathway by deciding whether or not to move muscles (except reflexes)Reflexes: Automatic response to stimulusAutonomic Nervous SystemRelay information from central nervous system to organsInvoluntary: You do not consciously control theseSympathetic Nervous System: controls in times of stress, such as the flight or fight responseParasympathetic Nervous System: controls body in times of rest
It is a powerpoint presentation that discusses about the lesson or topic: Respiratory System. It also talks about the definition, parts and the concepts about Respiratory System.
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The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
This system has three main components: the heart, the blood vessel and the blood itself. The heart is the system's pump and the blood vessels are like the delivery routes. Blood can be thought of as a fluid which contains the oxygen and nutrients the body needs and carries the wastes which need to be removed.
“The right half of the brain controls the left half of the body. This means that only left handed people are in their right mind.”
Made up of brain and spinal cordActs as body’s control center, coordinates body’s activitiesImpulses travel through the neurons in your body to reach the brainCentral Nervous System is yellow in this diagram.
Made up of all the nerves that carry messages to and from the central nervous system.Similar to telephone wires that connect all of our houses in the communityCentral Nervous System and Peripheral Nervous System work together to make rapid changes in your body in response to stimuli.Peripheral Nervous System is green in this diagram.
Somatic Nervous SystemRelay information between skin, skeletal muscles and central nervous systemYou consciously control this pathway by deciding whether or not to move muscles (except reflexes)Reflexes: Automatic response to stimulusAutonomic Nervous SystemRelay information from central nervous system to organsInvoluntary: You do not consciously control theseSympathetic Nervous System: controls in times of stress, such as the flight or fight responseParasympathetic Nervous System: controls body in times of rest
It is a powerpoint presentation that discusses about the lesson or topic: Respiratory System. It also talks about the definition, parts and the concepts about Respiratory System.
special sense organs (anatomy and physiology) - a brief discussion Pallab Nath
brief discussion on special senses, Basic level class for technicians. topics discussed include eyes and vision, nose and sense of smell, tongue and sense of taste and ears and hearing
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
This system has three main components: the heart, the blood vessel and the blood itself. The heart is the system's pump and the blood vessels are like the delivery routes. Blood can be thought of as a fluid which contains the oxygen and nutrients the body needs and carries the wastes which need to be removed.
The nervous system is the body's main communication system; it gathers, synthesizes, and uses data from the environment. The most basic unit of the nervous system is the neuron, which serves as both a sensor and communicator of internal and external stimuli.
Presentación relacionada a que es el cerebro, algunas de sus partes y las funciones de las mismas, además de mencionar cómo debemos cuidarlo y protegerlo.
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2. Nervous System A system that controls all of the activities of the body. The nervous system is made of: The brain The spinal cord The nerves The senses
3. Environment The environment is everything outside the body. The sense organs gather information from outside the body, then send the messages to the brain.
4. The nervous system also allows you to react to a stimulus on order to keep the body in homeostasis. Stimulus A stimulus is a change in the environment. Example: A hot stove Or… tripping over a rock
5. Your reactions are automatic. Automatic Automatic means that you do not have to think about your reactions. Example: If a bug flies by your eye, you will blink.
6. The Central Nervous System * The Central Nervous System controls all of the body’s activities. * The Central Nervous System is made of two main organs. 1. The brain 2. The spinal cord
7. Brain Is divided into two hemispheres-the right and left side of the brain The right side controls the left side of the body and left half controls the right side.
8. The Brain * An organ that controls your emotions, your thoughts, and every movement you make.The brain controls everything in the body. * The brain is made of more than 10 billion nerves! * The brain is divided into three parts and is protected by the skull.
9. The Three Parts of the Brain * The Brain has three main parts… 1. The Cerebrum 2. The Cerebellum 3. The Brain Stem
10. The Cerebrum * The Cerebrum is the largest part of the brain. 1. The cerebrum controls your thinking. 2. The cerebrum controls your memory. 3. The cerebrum controls your speaking. 4. The cerebrum controls your movement and identifies the information gathered by your sense organs. Corpus Collosum connects the two hemispheres
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14. The Cerebellum * The cerebellum is below and to the back of the cerebrum. 1. The cerebellum controls you balance. 2. The cerebellum controls your posture.
15. The Brain Stem * The Brain Stem connects the brain to the spinal cord. * The nerves in the brain stem control your heartbeat, breathing, and blood pressure. Also called the lizard brain Brainstem song
16. Hippocampus and Hypothalamus Hippocampus converts learning to working memory Hypothalamus-controls hunger, thirst and temperature and emotion
20. Reflex * An automatic reaction that happens without thinking about it. * A reflex happens quickly in less than a second.
21. Outer Nervous System * The outer nervous system carries messages between the central nervous system and the rest of the body. * The Outer Nervous System’s job is to connect the Central Nervous System to the rest of the body.
22. Automatic Nervous System * The outer nervous system controls the body’s activities that you don’t think about. * The outer nervous system controls activities in your small intestine, your breathing, and your heartbeat. controls
23. Motor Nerves Motor Nerves Send electrical signals through nerves to contract muscles to create motion
24. You have a nerve along your whole arm. "Funny Bone" The “funny bone” is the only place on the arm where the nerve is not protected. The “funny bone” is on the elbow.
25. Sensory Nervous System * The outer nervous system is made of the nerves and the sense organs. Nerves Eye Skin Ear Tongue
26. Review Nerves Draw a three part Venn Diagram comparing the three nerve types. Sensory Automatic Motor
27. Vision is your ability to see. Vision Vision involves the eye and the brain.
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29. Parts: Cornea-outside covering of the eye Iris-muscle of the eye that regulates how much light enters the eye (colored part) Lens-part of the eye that focuses light Vitreous humor-liquid in the eye that gives the eye its shape Pupil-hole in the eye that light travels through Sclera-white part of the eye Aqueous humor-liquid sac that gives cornea its shape. Retina-specialized cells in the back of the eye that takes light to a signal Optic nerve-sends signal from the back of the eye to the brain.
43. Eye Review How are the cells of the eye specialized so that we are able to see? Explain how the parts function so that we are able to observe the world around us.
44. When a sound is made, the air around the sound vibrates. Hearing Hearing starts when some of the sound waves go into the ear. How do we hear?
45. Parts of the Ear There are nine main parts of the ear. 1. Pinna 5. Anvil 2. Ear canal 6. Stirrup 3. Ear drum 7. Cochlea 4. Hammer 8. Eustachian tube 9. Auditory nerve
47. Parts of the Ear The pinna is the part of the ear that you can see. The ear canal is the tube between the outside of the ear and the ear drum. The ear drum is in the middle ear. It vibrates when sound waves hit it.
48. Parts of the Ear The three smallest bones in the body, the hammer, the anvil, and the stirrup, are in the middle ear. The hammer gets the vibrations from the eardrum, then sends them to the anvil. The anvil passes the vibrations to the stirrup. The stirrup passes the vibrations to the inner ear.
49. Parts of the Ear The Eustachian tube controls the amount of pressure in the ear. “Ear popping” The inner ear is made of the cochlea and liquid. The cochlea is in the inner ear. The cochlea looks like a shell. Filled with hair cells that move and send an electrical signal. The auditory nerve carries the hearing information to the brain from the cochlea and the brain tells us what we heard.
50. The Ear and Balance The ear works with the brain to control your balance. All of your movements are controlled by balance and muscles. The liquid in your inner ear is responsible for your balance. The liquid in your ear moves when we move. The liquid movement sends information to the brain to tell it how we are moving.
51. Ear Review How does our ear allow us to hear? Why do you think that listening to loud noises over a long period is bad for hearing?
52. The sense of touch is located in the skin. Touch The nerves in the skin allow us to feel texture, pressure, heat, cold, and pain. Texture is how something feels.
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54. Touch review Why is such a sensitive touch so necessary for survival?
55. The nose controls your sense of smell. Smell The nose is able to smell 80 different kinds of smells.
56. Your sense of taste comes from the taste buds in the tongue. Taste Taste buds are the parts on the tongue that allow us to taste. The four kinds of taste buds are sweet, sour, bitter, and salty. Did you know? Your nose affects your sense of taste. Think about colds