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Ch. 35 Nervous System ppt - Jamestown Public Schools
... rate of functions regulated by the brain They slow down heart rate & breathing rate, lower blood pressure, relax muscles, ...
... rate of functions regulated by the brain They slow down heart rate & breathing rate, lower blood pressure, relax muscles, ...
Unit IV-D Outline
... g. nerve cells of mature animals cannot divide, so cannot be replaced; but if cell body is unhurt, damage axons and dendrites outside the brain and spinal cord can grow back h. individuals are born with all the nerve cells they will ever have 4. The Synapse a. many terminal branches at the end of an ...
... g. nerve cells of mature animals cannot divide, so cannot be replaced; but if cell body is unhurt, damage axons and dendrites outside the brain and spinal cord can grow back h. individuals are born with all the nerve cells they will ever have 4. The Synapse a. many terminal branches at the end of an ...
Synapses and neurotransmitters
... Synapses, neurotransmitters, learning and memory • The Hebbian synapse • When an axon of cell A is near enough to excite cell B and repeatedly or persistenly takes part in firing it, some growth process or metabolic change takes place in one or both cells such that A’s efficiency as one of the cel ...
... Synapses, neurotransmitters, learning and memory • The Hebbian synapse • When an axon of cell A is near enough to excite cell B and repeatedly or persistenly takes part in firing it, some growth process or metabolic change takes place in one or both cells such that A’s efficiency as one of the cel ...
ppt
... •Excitatory Postsynaptic Potential (EPSP) •triggered by excitatory neurotransmitters •open ligand-gated Na+ channels •allows Na+ to flow inside the cell •causing a slight depolarization of the postsynaptic cell •moves the postsynaptic cell closer to firing an action potential ...
... •Excitatory Postsynaptic Potential (EPSP) •triggered by excitatory neurotransmitters •open ligand-gated Na+ channels •allows Na+ to flow inside the cell •causing a slight depolarization of the postsynaptic cell •moves the postsynaptic cell closer to firing an action potential ...
peripheral nervous system
... -Binds dopamine transporters and prevents the reuptake of dopamine -Dopamine survives longer in the synapse and fires pleasure pathways more and more -Prolonged exposure triggers the limbic system neurons to reduce receptor numbers -The cocaine user is now addicted ...
... -Binds dopamine transporters and prevents the reuptake of dopamine -Dopamine survives longer in the synapse and fires pleasure pathways more and more -Prolonged exposure triggers the limbic system neurons to reduce receptor numbers -The cocaine user is now addicted ...
Ch 11 Part 1 - Groch Biology
... 1. Nervous system subdivision that is composed of the brain and spinal cord. _____ 2. Subdivision of the PNS that controls voluntary activities such as the activation of skeletal muscles. ______ 3. Nervous system subdivision that is composed of the cranial and spinal nerves and ganglia. ____ 4. Subd ...
... 1. Nervous system subdivision that is composed of the brain and spinal cord. _____ 2. Subdivision of the PNS that controls voluntary activities such as the activation of skeletal muscles. ______ 3. Nervous system subdivision that is composed of the cranial and spinal nerves and ganglia. ____ 4. Subd ...
Unit A: Nervous and Endocrine Systems
... accept 2K+ from outside the membrane. 4. P (phosphate) is released from the carrier protein 5. Carrier protein changes shape to release 2K+ and accept 3Na+ again NET GAIN = 1+ out (keeps resting potential -70mV) ...
... accept 2K+ from outside the membrane. 4. P (phosphate) is released from the carrier protein 5. Carrier protein changes shape to release 2K+ and accept 3Na+ again NET GAIN = 1+ out (keeps resting potential -70mV) ...
Document
... whatever comes into your environment. B. The energy that stimulates your sense organs may be in the form of light rays, heat, sound waves, chemicals, or pressure. C. Five categories of sensory receptors: ...
... whatever comes into your environment. B. The energy that stimulates your sense organs may be in the form of light rays, heat, sound waves, chemicals, or pressure. C. Five categories of sensory receptors: ...
1
... Oligodendro= dendro close to dandruff, since oligodendrocytes are white due to the myelin sheath and dandruff is also white Satellite= are the same as a regular dish satellite, the way I see it, is as if it was on a roof the same way it is on the axon Schwann = close to swan which are also white, sc ...
... Oligodendro= dendro close to dandruff, since oligodendrocytes are white due to the myelin sheath and dandruff is also white Satellite= are the same as a regular dish satellite, the way I see it, is as if it was on a roof the same way it is on the axon Schwann = close to swan which are also white, sc ...
Chapter 10 Somatic and Special Senses
... Outer Layer: The outer (fibrous) layer is the transparent ________________ at the front of the eye, and the white ___________on the exterior of the eye. Middle Layer: The _____________ coat is highly vascular and darkly pigmented and performs two functions: to nourish other tissues of the eye and to ...
... Outer Layer: The outer (fibrous) layer is the transparent ________________ at the front of the eye, and the white ___________on the exterior of the eye. Middle Layer: The _____________ coat is highly vascular and darkly pigmented and performs two functions: to nourish other tissues of the eye and to ...
Option A Cerebral Cortex and Senses
... All substances release volatile chemicals into the air Humans detect 10,000 different odors Top of nasal passage neurons synapse to brain Receptors can be stimulated by more than one smell Olfactory receptors encoded by genes If your DNA lacks certain genes, you won’t be able to smell certain ...
... All substances release volatile chemicals into the air Humans detect 10,000 different odors Top of nasal passage neurons synapse to brain Receptors can be stimulated by more than one smell Olfactory receptors encoded by genes If your DNA lacks certain genes, you won’t be able to smell certain ...
Control and Integration Nervous System Organization: Radial
... – opening of chemically-gated or physically-gated ion channels – travels only a short distance (few mm) ...
... – opening of chemically-gated or physically-gated ion channels – travels only a short distance (few mm) ...
Nervous System Notes
... knob, causing release of calcium ions to diffuse into the knob Increased calcium concentrations trigger the release of neurotransmitters via exocytosis Neurotransmitters diffuse across the synaptic cleft and bind to receptor molecules causing ion channels to open This causes postsynaptic poten ...
... knob, causing release of calcium ions to diffuse into the knob Increased calcium concentrations trigger the release of neurotransmitters via exocytosis Neurotransmitters diffuse across the synaptic cleft and bind to receptor molecules causing ion channels to open This causes postsynaptic poten ...
Chapter 6 - Sensory - Austin Community College
... Voltage-regulated calcium channels in the axon termincal open and allow Ca2+ to enter the axon Ca2+ inside the axon terminal causes some of the synaptic vesicles to fuse with the axon membrane and release ACh into the synaptic cleft (exocytosis) The synaptic end bulbs releases acetylcholine from the ...
... Voltage-regulated calcium channels in the axon termincal open and allow Ca2+ to enter the axon Ca2+ inside the axon terminal causes some of the synaptic vesicles to fuse with the axon membrane and release ACh into the synaptic cleft (exocytosis) The synaptic end bulbs releases acetylcholine from the ...
Taste and Smell
... The Chemical Senses • Specialized to detect chemicals dissolved in a fluid • The fluid may be saliva, mucous, or blood plasma • Rely on receptors that interact with specific molecules to generate an action potential • Receptors are integrated with two or more tissue types making them fit the defini ...
... The Chemical Senses • Specialized to detect chemicals dissolved in a fluid • The fluid may be saliva, mucous, or blood plasma • Rely on receptors that interact with specific molecules to generate an action potential • Receptors are integrated with two or more tissue types making them fit the defini ...
Slide 1 - MisterSyracuse.com
... 16. Many tasks in the body are taken care of by the unconscious part of the brain, so that the brain’s owner doesn’t have to think about them. These tasks are performed by the A. Cerebrum B. Malpighian tubule C. Cortex D. Cerebellum _________ 17. Name three tasks that might be performed by the stru ...
... 16. Many tasks in the body are taken care of by the unconscious part of the brain, so that the brain’s owner doesn’t have to think about them. These tasks are performed by the A. Cerebrum B. Malpighian tubule C. Cortex D. Cerebellum _________ 17. Name three tasks that might be performed by the stru ...
The Nervous System - Hartland High School
... 23. What is depolarization? Cell becomes permeable to Na+ or sodium ions and they rush into cell changing the polarity of neuron. The inside becomes more positive and the outside of the cell more negative. 24. What is an action potential? What is another name for it? Electrical current generated by ...
... 23. What is depolarization? Cell becomes permeable to Na+ or sodium ions and they rush into cell changing the polarity of neuron. The inside becomes more positive and the outside of the cell more negative. 24. What is an action potential? What is another name for it? Electrical current generated by ...
Stimulus (physiology)
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment. The ability of an organism or organ to respond to external stimuli is called sensitivity. When a stimulus is applied to a sensory receptor, it normally elicits or influences a reflex via stimulus transduction. These sensory receptors can receive information from outside the body, as in touch receptors found in the skin or light receptors in the eye, as well as from inside the body, as in chemoreceptors and mechanorceptors. An internal stimulus is often the first component of a homeostatic control system. External stimuli are capable of producing systemic responses throughout the body, as in the fight-or-flight response. In order for a stimulus to be detected with high probability, its level must exceed the absolute threshold; if a signal does reach threshold, the information is transmitted to the central nervous system (CNS), where it is integrated and a decision on how to react is made. Although stimuli commonly cause the body to respond, it is the CNS that finally determines whether a signal causes a reaction or not.