Ns3 unit 4 the nervous system
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The document discusses the five senses - sight, hearing, smell, taste, and touch - and their corresponding sensory organs. It notes that the eyes are the organ of sight, the ears are the organs of hearing, the nose is the organ of smell, the tongue is the organ of taste, and the skin is the organ of touch. It also explains that the nervous system, which is made up of the brain, spinal cord, and nerves, works with the five senses and allows the brain to receive messages from the senses and provide instructions in response.
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The document provides information about the human nervous system and its interaction with the senses. It discusses:
- The central nervous system, which includes the brain and spinal cord, and the peripheral nervous system, which includes nerves.
- The five senses (sight, hearing, smell, taste, touch) and the organs, receptors, nerves, and processes involved with each sense.
- Components of the nervous system like neurons, receptors, effectors and their functions in receiving stimuli, interpreting responses, and executing responses.
- The locomotor system, including the muscular and skeletal systems, bones, joints, muscles and tendons and their roles in movement and protection.
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The document discusses the five main human sense organs - eyes, ears, nose, tongue, and skin. It provides details on the function and basic anatomy of each sense organ, noting that the eyes help with vision, ears with hearing, nose with smell, tongue with taste, and skin with touch. Each sense organ contains specialized cells that detect stimuli and send nerve signals to the brain.
Sense organs
The 5 sense organs are the eyes, tongue, nose, ears and skin. The eyes help us see, the tongue helps us taste, the nose helps us smell, the ears help us hear, and the skin helps us feel through touch. Each sense organ works with the brain to detect and interpret sensations from the surrounding environment.
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The document summarizes the key human body systems involved in interaction: the sense organs, nervous system, and locomotor system. It describes how the sense organs (sight, smell, taste, hearing, touch) detect stimuli and send this information to the brain via sensory neurons. The brain then interprets the information and sends orders to the muscles via the nervous system. Upon receiving signals, the muscles and skeleton (via joints) work together as the locomotor system to move the body and allow interaction with the environment.
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This document summarizes the key human body systems involved in receiving and responding to stimuli. It describes the main senses of sight, smell, hearing, touch and taste and the organs associated with each. It then explains the nervous system, including the central nervous system made up of the brain and spinal cord, and the peripheral nervous system comprising sensory and motor nerves. It outlines the roles of the brain and spinal cord in voluntary and involuntary movements. Finally, it provides an overview of the skeletal system of bones and joints, and the muscular system of muscles, tendons and their functions.
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This document provides an overview of the major body systems, including the skeletal, digestive, muscular, circulatory, nervous, sight, smell, touch, taste, and hearing systems. It includes a table of contents that lists each system and the corresponding page number. For each system, it provides a brief 1-2 sentence description and sometimes mentions main parts. The goal is to teach children about how their body works through its different systems.
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The document discusses the five senses and related human body systems. It is divided into three main sections: the nervous system, the five senses (sight, hearing, smell, taste, touch) and the five sense organs (eyes, ears, nose, tongue, skin). Each sense is explained in its own subsection, covering how it works and its related body parts. The sections also discuss the brain and nerves, and how the senses allow the body to interact with and understand its environment.
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The document discusses the five main human senses - taste, sight, touch, smell, and hearing - and describes the organs associated with each sense. It notes that taste comes from the tongue, sight from the eyes, touch is spread throughout the body, smell from the nose, and hearing involves the outer and inner ear. The document also lists additional human senses including balance, pressure, temperature, pain, and motion.
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The document provides information about the human nervous system and its interaction with the senses. It discusses:
- The central nervous system, which includes the brain and spinal cord, and the peripheral nervous system, which includes nerves.
- The five senses (sight, hearing, smell, taste, touch) and the organs, receptors, nerves, and processes involved with each sense.
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- The locomotor system, including the muscular and skeletal systems, bones, joints, muscles and tendons and their roles in movement and protection.
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The document discusses the five main human sense organs - eyes, ears, nose, tongue, and skin. It provides details on the function and basic anatomy of each sense organ, noting that the eyes help with vision, ears with hearing, nose with smell, tongue with taste, and skin with touch. Each sense organ contains specialized cells that detect stimuli and send nerve signals to the brain.
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The document summarizes the key human body systems involved in interaction: the sense organs, nervous system, and locomotor system. It describes how the sense organs (sight, smell, taste, hearing, touch) detect stimuli and send this information to the brain via sensory neurons. The brain then interprets the information and sends orders to the muscles via the nervous system. Upon receiving signals, the muscles and skeleton (via joints) work together as the locomotor system to move the body and allow interaction with the environment.
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This document summarizes the key human body systems involved in receiving and responding to stimuli. It describes the main senses of sight, smell, hearing, touch and taste and the organs associated with each. It then explains the nervous system, including the central nervous system made up of the brain and spinal cord, and the peripheral nervous system comprising sensory and motor nerves. It outlines the roles of the brain and spinal cord in voluntary and involuntary movements. Finally, it provides an overview of the skeletal system of bones and joints, and the muscular system of muscles, tendons and their functions.
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This document provides an overview of the major body systems, including the skeletal, digestive, muscular, circulatory, nervous, sight, smell, touch, taste, and hearing systems. It includes a table of contents that lists each system and the corresponding page number. For each system, it provides a brief 1-2 sentence description and sometimes mentions main parts. The goal is to teach children about how their body works through its different systems.
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The document discusses the five senses and related human body systems. It is divided into three main sections: the nervous system, the five senses (sight, hearing, smell, taste, touch) and the five sense organs (eyes, ears, nose, tongue, skin). Each sense is explained in its own subsection, covering how it works and its related body parts. The sections also discuss the brain and nerves, and how the senses allow the body to interact with and understand its environment.
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The nervous system controls all bodily functions and processes information through the brain and nerves. It receives information from the five sense organs - nose, tongue, eyes, ears, and skin - which detect smells, tastes, sights, sounds, and touches from the environment and internal body. This sensory information is transmitted by nerves to the brain for processing.
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The eye is the organ of sight, protected by eyebrows, eyelashes and eyelids. Light enters through the cornea and passes through the pupil and iris, then the crystalline lens focuses the image onto the retina. The retina then passes this visual information through the optic nerve to the brain.
The ear is the organ of hearing and has three parts: the external ear picks up sounds, the middle ear transforms sounds into vibrations using the eardrum and three small bones, and the inner ear transforms these vibrations into nerve impulses sent to the brain via the auditory nerve.
The tongue is the organ of taste, with taste receptors located in taste buds distributed across its surface according to the four basic
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Our five main senses - sight, hearing, touch, taste, and smell - allow us to interpret stimuli in our environment. Sight uses the eyes to see color and shape, hearing detects sounds through the ears, touch senses pressure and temperature via skin receptors, taste buds on the tongue identify flavors, and smell is mediated by receptors in the nose. The nervous system coordinates both voluntary and involuntary actions in response to internal and external stimuli through two main parts: the central nervous system and peripheral nerves.
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The document summarizes the main components and functions of the human nervous system. It describes the brain as the control center made up of the cerebrum, cerebellum, and brain stem. The spinal cord connects the brain to nerves throughout the body and is responsible for involuntary movements. There are sensory nerves that carry signals to the brain and motor nerves that carry signals from the brain. The five senses - sight, hearing, smell, taste, and touch - allow humans to perceive their environment through specialized sense organs like the eyes, ears, nose, tongue, and skin.
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The nervous system controls all activities of the body and is made up of the central and peripheral nervous systems. The central nervous system consists of the brain and spinal cord and controls thought, movement, and organ functions. The peripheral nervous system consists of nerves and sensory organs like eyes, ears, and skin that allow the body to receive external stimuli and react automatically through reflexes.
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The document discusses the human body's sensory and response systems. It describes the different types of stimuli the body receives, both internal and external. It also outlines the main sensory organs - eyes, ears, skin, nose, tongue - and how each receives different types of stimuli via specialized receptors. Finally, it provides an overview of the central nervous system, including the brain, spinal cord, sensory and motor nerves, and neurons, and how these systems work together to coordinate the body's responses to stimuli.
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The document summarizes key aspects of the nervous system and senses. It discusses how the nervous system is made up of the central nervous system (brain and spinal cord) and peripheral nervous system. It captures information from the five senses through sense organs like the eyes, ears, nose, tongue and skin. This sensory information is sent to the brain via sensory neurons. The brain then interprets the information and sends signals to the rest of the body using motor neurons to coordinate responses. The nervous system controls everything we do through reflex actions and voluntary movements.
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The nervous system controls all bodily functions and processes information through the brain and nerves. It receives information from the five sense organs - nose, tongue, eyes, ears, and skin - which detect smells, tastes, sights, sounds, and touches from the environment and internal body. This sensory information is transmitted by nerves to the brain for processing.
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The eye is the organ for sight and contains the eyeball. Light enters through the cornea and passes through the pupil and lens, which focuses the image onto the retina. The optic nerve then carries this visual information to the brain. The ear is the organ for hearing and contains the outer, middle, and inner ear. The skin is the organ for touch and has three layers - the epidermis, dermis, and hypodermis. The nose and tongue are the organs for smell and taste, respectively.
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The eye is the organ of sight, protected by eyebrows, eyelashes and eyelids. Light enters through the cornea and passes through the pupil and iris, then the crystalline lens focuses the image onto the retina. The retina then passes this visual information through the optic nerve to the brain.
The ear is the organ of hearing and has three parts: the external ear picks up sounds, the middle ear transforms sounds into vibrations using the eardrum and three small bones, and the inner ear transforms these vibrations into nerve impulses sent to the brain via the auditory nerve.
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The nervous system consists of the central nervous system (brain and spinal cord) and the peripheral nervous system (network of nerves). Neurons are the basic structural and functional units and conduct impulses between the body and environments. There are various types of neurons including motor, sensory, and interneurons. The peripheral nervous system branches throughout the body from the brain and spinal cord and includes 31 pairs of spinal nerves and 12 pairs of cranial nerves. The autonomic nervous system controls involuntary functions and is divided into the sympathetic and parasympathetic divisions.
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Our five main senses - sight, hearing, touch, taste, and smell - allow us to interpret stimuli in our environment. Sight uses the eyes to see color and shape, hearing detects sounds through the ears, touch senses pressure and temperature via skin receptors, taste buds on the tongue identify flavors, and smell is mediated by receptors in the nose. The nervous system coordinates both voluntary and involuntary actions in response to internal and external stimuli through two main parts: the central nervous system and peripheral nerves.
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This document discusses the five basic human senses: sight, smell, taste, hearing, and touch. It provides details on the organs and biological processes involved in each sense. For sight, it describes the eye, retina, and optic nerve. For smell, it discusses the olfactory receptors in the nasal cavity. It notes the five primary tastes detected by taste buds on the tongue. For hearing, it explains how sound waves are captured by the outer ear and transmitted through the middle ear bones to vibrate the cochlea. It describes the nerve endings in the skin that provide the sense of touch all over the body.
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