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ANATOMY Unit 3: Nervous System
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Unit 3 Anatomy NEURON DIAGRAM Dendrites Sensory neuron motor No Nervous System Cell body neurons schwann Cell nucleus REFLEX ARC Stretch receptor Biceps Femon's muscle (Flexor) Q Quadricep Femoris muscle self-guide 9/26 Nodes of ranvier Myellin Sheath 个 Axon Schwann Cell lobe Axon BRAIN frontal Terminals temporal lobe pakellar Tendon medulla- oblongata Somatomotor Cortex som a sensatory -parietal lobe -occipital lobe terebellum •Spinal cord NO Unit 3 Anatomy The Nervous system PERIPHERAL NERVOUS SYSTEM •Autonomic division of the nervous system can be Subdivided into 2 divisions: DPARASUMPATHETIC REST decreases heart rate, bronchiole dilation, pupil Size, blood glucose, blood to skletal muscle + L increases digestion · unnary output ↳ "rell and digest." 2Sumpattunic 1₂ decreases digestion · Urinary out put t Lo increases heart rate, bronchiole dilation, Pupil Size, blood glucose, blood to skuletal muscle LD "fight or flight" NERVOUS TISSUE NERVOUS TISSUE ' composed of 2 major cell types ↳1) Neurons Scpt. 25/2013 2) Neuroglial Cells NEURONS are made of a cell body, dendrites axons DENDRITES receive information AXONS send information, "electrical cord" Larger axons are enclosed by sheaths of myelin produced by schwam cells Narrow gaps in the myllin sheath between Schwann cells are called Nodes of Kanwier NERVES are cable-like bundles of axons. NEURO GLIAL CELLS provide physical support, insulation (myclin), and nulvients for neurons. MICROGLIAL are first line of defense, equivalent to WBC PE Unit 3 Anatomy Nervous System CLASSIFICATION OF NEURONS - Classified by structure & function STRUCTURE D) Muinpolar 4 Many Processes arising from cell body L₂ Brain or spinal cord 2) Bi Polar Scpt.27, 2023 3) Unipolar 2 Processes (1 from each end of cell body) Ears, eyes, hose FUNCTION ↳ Single processi extends from cell body is outside of brain 1) sensory neurons (afferent) ↳ specialized receptor ends that sense Shimuli and then...
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Alternative transcript:
carry impulses from peripheral body Parts to brain or Spinal cord is can be unipolar or bipolar 20 Interneurons blie entirely within the brain or spinal Bothare card; direct incoming sensory impuises to appropriate parts. Multipolas for processing and interpreting 3.) Motor neurons (efferent) Carry Impulses out of brain or spinal cord to effectors (muscles, glands) REFLEXES • Automatic subconciaus responses to stimuli within or Outside body •Help maintain homeostasis by controlling involuntary functions like heart rate + breathing rate • Also a protective function: ↳ touch hot object, instantly jerks away I badly registers pain after vnit 3 Anatomy Nervous System [REFLEX ARC J • A reflex arc is a very simple nerve path consisting of a receptor on a sensory neuron, one or more interneurons, a motor nevron, and an effector (like a mucche) • some reflexes include ↳ Sneezing ↳ blinking Sept 27,2023 La Coughing ↳ vomiting PO Unit 3 Anatomy The Nervous System GENERAL FUNCTIONS SENSORY •Gathers info about Changes occurring within and around the body; sensory receptors, at ends of peripheral nerves, send signals to CNS ↳ example light, 0₂ levels, body temp INTEGRATIVE 'information is "brought together", interpreted, to Create sensations, create thoughts, add to memory, make decisions etc. MOTOR 6 sept. 21, 2023 Sending of signals to muscles and/or glands to elicit a response • organs of Nervous system are divided in 2 groups: CENTRAL NERVOUS SYSTEM (CNS) •Composed of the brain and spinal cord. •These neurant CANNOT be regenerated if damaged th PERIPHERAL NERVOUS SYSTEM (PNS) • made up of peripheral nerves that connect the CNS to the rest of the body • These neurons CAN regenerate if damaged. •31 pairs of spinal nerves • 12 pairs of Cranial newes PNS can be subdivided into 2 divisions, Los 1) Autonomic -cranial and spinal nerves connecting CNS heart, stomach, intestines, glands to •Controls unconcious activities. L 2) somatic - Cranial + Spinal nerves conructing CNS 1 to skin - Skeletal muscles T - oversees concious achvibes HE
ANATOMY Unit 3: Nervous System
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kenzie e
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ANATOMY NERVOUS SYSTEM UNIT 3 CONTAINS: Sensory, integrative, and motor nerve functions. Divisions of nervous system (central and peripheral). Different tissues, neuron classification and their functions, reflexes, and detailed diagrams.
kenzie e
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ANATOMY Unit 3: Nervous System
Comments (1)
ANATOMY NERVOUS SYSTEM UNIT 3 CONTAINS: Sensory, integrative, and motor nerve functions. Divisions of nervous system (central and peripheral). Different tissues, neuron classification and their functions, reflexes, and detailed diagrams.
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Unit 3 Anatomy NEURON DIAGRAM Dendrites Sensory neuron motor No Nervous System Cell body neurons schwann Cell nucleus REFLEX ARC Stretch receptor Biceps Femon's muscle (Flexor) Q Quadricep Femoris muscle self-guide 9/26 Nodes of ranvier Myellin Sheath 个 Axon Schwann Cell lobe Axon BRAIN frontal Terminals temporal lobe pakellar Tendon medulla- oblongata Somatomotor Cortex som a sensatory -parietal lobe -occipital lobe terebellum •Spinal cord NO Unit 3 Anatomy The Nervous system PERIPHERAL NERVOUS SYSTEM •Autonomic division of the nervous system can be Subdivided into 2 divisions: DPARASUMPATHETIC REST decreases heart rate, bronchiole dilation, pupil Size, blood glucose, blood to skletal muscle + L increases digestion · unnary output ↳ "rell and digest." 2Sumpattunic 1₂ decreases digestion · Urinary out put t Lo increases heart rate, bronchiole dilation, Pupil Size, blood glucose, blood to skuletal muscle LD "fight or flight" NERVOUS TISSUE NERVOUS TISSUE ' composed of 2 major cell types ↳1) Neurons Scpt. 25/2013 2) Neuroglial Cells NEURONS are made of a cell body, dendrites axons DENDRITES receive information AXONS send information, "electrical cord" Larger axons are enclosed by sheaths of myelin produced by schwam cells Narrow gaps in the myllin sheath between Schwann cells are called Nodes of Kanwier NERVES are cable-like bundles of axons. NEURO GLIAL CELLS provide physical support, insulation (myclin), and nulvients for neurons. MICROGLIAL are first line of defense, equivalent to WBC PE Unit 3 Anatomy Nervous System CLASSIFICATION OF NEURONS - Classified by structure & function STRUCTURE D) Muinpolar 4 Many Processes arising from cell body L₂ Brain or spinal cord 2) Bi Polar Scpt.27, 2023 3) Unipolar 2 Processes (1 from each end of cell body) Ears, eyes, hose FUNCTION ↳ Single processi extends from cell body is outside of brain 1) sensory neurons (afferent) ↳ specialized receptor ends that sense Shimuli and then...
Unit 3 Anatomy NEURON DIAGRAM Dendrites Sensory neuron motor No Nervous System Cell body neurons schwann Cell nucleus REFLEX ARC Stretch receptor Biceps Femon's muscle (Flexor) Q Quadricep Femoris muscle self-guide 9/26 Nodes of ranvier Myellin Sheath 个 Axon Schwann Cell lobe Axon BRAIN frontal Terminals temporal lobe pakellar Tendon medulla- oblongata Somatomotor Cortex som a sensatory -parietal lobe -occipital lobe terebellum •Spinal cord NO Unit 3 Anatomy The Nervous system PERIPHERAL NERVOUS SYSTEM •Autonomic division of the nervous system can be Subdivided into 2 divisions: DPARASUMPATHETIC REST decreases heart rate, bronchiole dilation, pupil Size, blood glucose, blood to skletal muscle + L increases digestion · unnary output ↳ "rell and digest." 2Sumpattunic 1₂ decreases digestion · Urinary out put t Lo increases heart rate, bronchiole dilation, Pupil Size, blood glucose, blood to skuletal muscle LD "fight or flight" NERVOUS TISSUE NERVOUS TISSUE ' composed of 2 major cell types ↳1) Neurons Scpt. 25/2013 2) Neuroglial Cells NEURONS are made of a cell body, dendrites axons DENDRITES receive information AXONS send information, "electrical cord" Larger axons are enclosed by sheaths of myelin produced by schwam cells Narrow gaps in the myllin sheath between Schwann cells are called Nodes of Kanwier NERVES are cable-like bundles of axons. NEURO GLIAL CELLS provide physical support, insulation (myclin), and nulvients for neurons. MICROGLIAL are first line of defense, equivalent to WBC PE Unit 3 Anatomy Nervous System CLASSIFICATION OF NEURONS - Classified by structure & function STRUCTURE D) Muinpolar 4 Many Processes arising from cell body L₂ Brain or spinal cord 2) Bi Polar Scpt.27, 2023 3) Unipolar 2 Processes (1 from each end of cell body) Ears, eyes, hose FUNCTION ↳ Single processi extends from cell body is outside of brain 1) sensory neurons (afferent) ↳ specialized receptor ends that sense Shimuli and then...
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Knowunity is the # 1 ranked education app in five European countries
Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.
Still not sure? Look at what your fellow peers are saying...
iOS User
I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D
Stefan S, iOS User
The application is very simple and well designed. So far I have found what I was looking for :D
SuSSan, iOS User
Love this App ❤️, I use it basically all the time whenever I'm studying
Alternative transcript:
carry impulses from peripheral body Parts to brain or Spinal cord is can be unipolar or bipolar 20 Interneurons blie entirely within the brain or spinal Bothare card; direct incoming sensory impuises to appropriate parts. Multipolas for processing and interpreting 3.) Motor neurons (efferent) Carry Impulses out of brain or spinal cord to effectors (muscles, glands) REFLEXES • Automatic subconciaus responses to stimuli within or Outside body •Help maintain homeostasis by controlling involuntary functions like heart rate + breathing rate • Also a protective function: ↳ touch hot object, instantly jerks away I badly registers pain after vnit 3 Anatomy Nervous System [REFLEX ARC J • A reflex arc is a very simple nerve path consisting of a receptor on a sensory neuron, one or more interneurons, a motor nevron, and an effector (like a mucche) • some reflexes include ↳ Sneezing ↳ blinking Sept 27,2023 La Coughing ↳ vomiting PO Unit 3 Anatomy The Nervous System GENERAL FUNCTIONS SENSORY •Gathers info about Changes occurring within and around the body; sensory receptors, at ends of peripheral nerves, send signals to CNS ↳ example light, 0₂ levels, body temp INTEGRATIVE 'information is "brought together", interpreted, to Create sensations, create thoughts, add to memory, make decisions etc. MOTOR 6 sept. 21, 2023 Sending of signals to muscles and/or glands to elicit a response • organs of Nervous system are divided in 2 groups: CENTRAL NERVOUS SYSTEM (CNS) •Composed of the brain and spinal cord. •These neurant CANNOT be regenerated if damaged th PERIPHERAL NERVOUS SYSTEM (PNS) • made up of peripheral nerves that connect the CNS to the rest of the body • These neurons CAN regenerate if damaged. •31 pairs of spinal nerves • 12 pairs of Cranial newes PNS can be subdivided into 2 divisions, Los 1) Autonomic -cranial and spinal nerves connecting CNS heart, stomach, intestines, glands to •Controls unconcious activities. L 2) somatic - Cranial + Spinal nerves conructing CNS 1 to skin - Skeletal muscles T - oversees concious achvibes HE