presentación de powerpoint...vocabulary session 1 castellano english • estímulo • receptor •...
TRANSCRIPT
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NERVOUS SYSTEM
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NERVOUS SYSTEM
1. Relation function2. Nervous system organization3. Neurons4. Glial cells5. Nerve impulse6. Central nervous system7. Peripheral nervous system8. Reflex arc
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1. Relation function
2. Nervous System Organization
1st SESSION
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ORGANS, SYSTEMS AND VITAL FUNCTIONS
NUTRITION
• Digestive System
• Respiratory System
• Circulatory System
• Excretory System
RELATION
• Nervous System
• Endocrine System
• Skeletal System (muscles and
skeleton)
• Sense OrgansREPRODUCTION
• Reproductive System
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EXTERNAL
INTERNAL
RECEPTORNERVOUS SYSTEM
RESPONSE
ENDOCRINE SYSTEM
LOCOMOTOR SYSTEM
ENVIRONMENT
Homeostasis
Behaviour
1. RELATION FUNCTION
Physical• Ligth• Humidity• Temperature• Sounds, etc.
Chemical• pH• Salinity• Ions and chimical
compounds
Biological• Living beings
STIMULUS
Sense organs
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1. RELATION FUNCTION
EXTERNAL
INTERNAL
RECEPTORNERVOUS SYSTEM
RESPONSE
ENDOCRINE SYSTEM
LOCOMOTOR SYSTEM
ENVIRONMENT
Homeostasis
Behaviour
Physical• Ligth• Humidity• Temperature• Sounds, etc.
Chemical• pH• Salinity• Ions and chimical
compounds
Biological• Living beings
STIMULUS
Sense organs
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2. NERVOUS SYSTEM ORGANZATION
CENTRAL NERVOUS SYSTEM- Brain (cerebrum, cerebellum, brain stem)- Spinal cord
PERIPHERAL NERVOUS SYSTEM- Cranial and spinal nerves- Ganglia
MOTOR
SOMATIC (voluntary)
AUTONOMIC (involuntary)
SENSORY
ANATOMICALLOCALISATION
CONTROL
FUNCTION
CELLS: Neurons and Glial cells
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VOCABULARY SESSION 1
CASTELLANO ENGLISH
• Estímulo
• Receptor
• Sistema Nervioso
• Efector
• Homeostasis
• Conducta
• Stimulus
• Receptor
• Nervous System
• Effector
• Homeostasis
• Behaviour
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3. Neurons
4. Glial cells
2nd SESSION
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3. NEURONS
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3. NEURONS
Transverse section of the axonThe lines souronding the axón correspond to the myeline sheath, in this case produce
by a Schwann cell
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Multipolar
Motor
Pseudopolar
Sensory
Bipolar
Olfative
Unipolar
Sensory
Pyramidal
Brain
3. NEURONS
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RECEPTOR NERVOUS SYSTEM RESPONSE
3. NEURONS
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NEURONS FUNCTIONAL CLASSIFICATION
SENSORY NEURONS: nerve cells within the nervous system responsible for
converting external stimuli from the organism's environment into internal
electrical impulses.
MOTOR NEURONS: are efferent neurons that originate in the spinal cord and
synapse with muscle fibers to facilitate muscle contraction.
INTERNEURONS: create neural circuits, enabling communication between
sensory or motor neurons and the central nervous system.
3. NEURONS
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NEURONS FUNCTIONAL CLASSIFICATION
3. NEURONS
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3. NEURONS
Motor neurons innervating a muscular skeletal fiber
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4. GLIAL CELLS
• Glial cells include any of the cells that hold nerve cells in place and help them work the way they should.
• They are not neuron-cell type, so they do not have dendrites nor axon
• There are several types but here we will refer only to three types.
They are responsible for the production of the myelin sheath
OLIGODENDROCYTES AND SCHAWN CELLS ASTROCYTES
Star-shaped glial cells that have a number of functions, including support of the blood-brain barrier, provision of nutrients to neurons, repair to nervous tissue following injury, and facilitation of neurotransmission.
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VOCABULARIOY SESSION 2
CASTELLANO ENGLISH
• Neurona• Dendrita• Axón• Vaina de Mielina• Terminales del axón• Botones terminales• Nodos de Ranvier• Neurona motora• Neurona sensitiva• Interneurona• Células de la glía• Célula de Schwann• Oligodendrocitos• Astrocitos
• Neuron• Motor neuron• Sensory neuron• Interneuron• Glial cells• Dendrite• Axon• Myelin sheath• Terminal branches of the axon• Axon tips• Nodes of Ranvier• Schwann cell• Oligodendrocyte• Astrocyte
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5. The nervous impulse
3rd SESSION
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5. THE NERVE IMPULSE
The messages carried by neurons are called nerve impulses. Nerve impulses can travel very quickly because they are transmitted mostly as an electrical wave through the neuron membrane.
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5. THE NERVE IMPULSE
Unidirectional: dendrites axon dendrites
Electrical signal: through the axon
Chemical signal: Terminal branches of the axon-dendrites
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5. THE NERVE IMPULSE
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Postsynaptic
neuronPresynaptic
neuron
Vesicles with
neurotransmitters
Synaptic cleft
Channels with
receptors
Neurotransmitters Iones
SYNAPSIS Communication between neurons
5. THE NERVE IMPULSE
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SYNAPSIS
5. THE NERVE IMPULSE
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VOCABULARY 3rd SESSION
CASTELLANO ENGLISH
• Impulso nervioso
• Unidireccional
• Sinapsis
• Neurona presináptica
• Neurona postsináptica
• Espacio intersináptico
• Neurotransmisores
• Canales con receptores
• Nervous impulse
• Unidirectional
• Synapsis
• Pre-synaptic neuron
• Post-synaptic neuron
• Synaptic cleft
• Neurotransmitters
• Channels with receptors