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The Nervous System
... ensues, depolarizing the cell and causing the VM to increase. This is the rising phase of an AP. • Eventually, the Na+ channel will have inactivated and the K+ channels will be open. Now, K+ effluxes and repolarization occurs. This is the falling phase. – K+ channels are slow to open and slow to clo ...
... ensues, depolarizing the cell and causing the VM to increase. This is the rising phase of an AP. • Eventually, the Na+ channel will have inactivated and the K+ channels will be open. Now, K+ effluxes and repolarization occurs. This is the falling phase. – K+ channels are slow to open and slow to clo ...
Chapter 13 and 16
... A. Astrocyte- function in creating bloodbrain barrier, provide structure B. Oligodendocyte- produce myelin sheath C. Microglia- immune cells of CNS, similar to macrophages D. Ependymal- found in ventricles of brain, produce cerebrospinal fluid ...
... A. Astrocyte- function in creating bloodbrain barrier, provide structure B. Oligodendocyte- produce myelin sheath C. Microglia- immune cells of CNS, similar to macrophages D. Ependymal- found in ventricles of brain, produce cerebrospinal fluid ...
Week 2 Section Handout
... with information about the density of pressure-sensitive mechanoreceptors over the body and the number and type of connections these receptors make in the brain. In order to discriminate between two nearby points, receptors must be packed tightly enough for at least two different receptors to be in ...
... with information about the density of pressure-sensitive mechanoreceptors over the body and the number and type of connections these receptors make in the brain. In order to discriminate between two nearby points, receptors must be packed tightly enough for at least two different receptors to be in ...
Synthetic neurons
... • Gathers and interprets information from inside and outside the body • Makes the body respond to that information ...
... • Gathers and interprets information from inside and outside the body • Makes the body respond to that information ...
The Zombie Diaries
... What’s the Big Idea?: To understand how information (messages) travel across the brain, and how messages are sent back across the pathways to the rest of the body (neurotransmission). 1.) Choose a partner 2.) Get a Chromebook and a packet from the end of the table 3. ) Review pages 4 - 10 of this Po ...
... What’s the Big Idea?: To understand how information (messages) travel across the brain, and how messages are sent back across the pathways to the rest of the body (neurotransmission). 1.) Choose a partner 2.) Get a Chromebook and a packet from the end of the table 3. ) Review pages 4 - 10 of this Po ...
LS Chapter 18: Control and Coordination The Nervous System
... o The _______________Gland, located in the _______________, signals the body to _______________ o _______________Glands in the abdomen release _______________to help respond to stress o The _______________secretes _______________to control blood sugar o In females, _______________release ___________ ...
... o The _______________Gland, located in the _______________, signals the body to _______________ o _______________Glands in the abdomen release _______________to help respond to stress o The _______________secretes _______________to control blood sugar o In females, _______________release ___________ ...
Impulse Conduction Practice Questions
... a. Which area of the graph indicates the diffusion of Na+ ions into the neurons? Explain your answer. (2 marks) ...
... a. Which area of the graph indicates the diffusion of Na+ ions into the neurons? Explain your answer. (2 marks) ...
BLoA Neurotransmission
... The distance between a presynaptic and postsynaptic neuron is about 20-40 nanometers! ...
... The distance between a presynaptic and postsynaptic neuron is about 20-40 nanometers! ...
Document
... 2. Gated channels: open and close in response to a stimulus A. voltage-gated: open in response to change in voltage - participate in the AP B. ligand-gated: open & close in response to particular chemical stimuli (hormone, neurotransmitter, ion) C. mechanically-gated: open with mechanical stimulatio ...
... 2. Gated channels: open and close in response to a stimulus A. voltage-gated: open in response to change in voltage - participate in the AP B. ligand-gated: open & close in response to particular chemical stimuli (hormone, neurotransmitter, ion) C. mechanically-gated: open with mechanical stimulatio ...
The Two Messenger Services of the Brain
... In fact you can expect feeling to return at a rate of about 1 millimeter a day!!!) ...
... In fact you can expect feeling to return at a rate of about 1 millimeter a day!!!) ...
UNIT 3
... The nervous system secretes a variety of neurotransmitters. The can be grouped into seven classes by their structure: acetylcholine, amino acids, amino-acid derived amines, polypeptides, purines, gases, and lipids. Examples of neurotransmitters are acetylcholine (Ach), amines (norepinephrine, epinep ...
... The nervous system secretes a variety of neurotransmitters. The can be grouped into seven classes by their structure: acetylcholine, amino acids, amino-acid derived amines, polypeptides, purines, gases, and lipids. Examples of neurotransmitters are acetylcholine (Ach), amines (norepinephrine, epinep ...
Nervous System Function
... NT binding site – NT activates a “second messenger” (1st is the NT) inside the cell Change function of cell (e.g., change protein production to permanently alter cell function for learning) ...
... NT binding site – NT activates a “second messenger” (1st is the NT) inside the cell Change function of cell (e.g., change protein production to permanently alter cell function for learning) ...
Organization of the Nervous System
... A Closer Look @ Nervous System Cells GLIAL CELLS– support, protect, and maintain nerve tissue Most abundant cells in the nervous system CNS production and circulation of cerebrospinal fluid (CSF) 2 types (PNS) ...
... A Closer Look @ Nervous System Cells GLIAL CELLS– support, protect, and maintain nerve tissue Most abundant cells in the nervous system CNS production and circulation of cerebrospinal fluid (CSF) 2 types (PNS) ...
Postsynaptic Potential
... • Channels are ion selective • Ions enter or leave the cell altering membrane potential ...
... • Channels are ion selective • Ions enter or leave the cell altering membrane potential ...
Ions in Your Life
... Electrical impulse created by flow of ions in and out cell down the axon (Ca+) triggers the release of synaptic vesicles filled with neurotransmitters into synaptic gap/cleft. Neurotransmitters bind with specific channels on next neuron to start electrical impulse (flow of ions) down next neuron’s a ...
... Electrical impulse created by flow of ions in and out cell down the axon (Ca+) triggers the release of synaptic vesicles filled with neurotransmitters into synaptic gap/cleft. Neurotransmitters bind with specific channels on next neuron to start electrical impulse (flow of ions) down next neuron’s a ...
12-1 Chapter 12 Lecture Outline See PowerPoint Image Slides for
... – in discharge zone, a single cell can produce firing – in facilitated zone, single cell can only make it easier for the postsynaptic cell to fire ...
... – in discharge zone, a single cell can produce firing – in facilitated zone, single cell can only make it easier for the postsynaptic cell to fire ...
Chapter 12
... – in discharge zone, a single cell can produce firing – in facilitated zone, single cell can only make it easier for the postsynaptic cell to fire ...
... – in discharge zone, a single cell can produce firing – in facilitated zone, single cell can only make it easier for the postsynaptic cell to fire ...
Chapter 44
... – End of presynaptic cell contains synaptic vesicles packed with neurotransmitters ...
... – End of presynaptic cell contains synaptic vesicles packed with neurotransmitters ...
Assignment 1 - Gordon State College
... 16. The neurotransmitter ____________________ is involved with depression. Drugs like _______________ increase its availability by blocking its reuptake. 17. The word “endorphins” is derived from the phrase “___________________ _______________.” Neurotransmitters in this group are the body’s natural ...
... 16. The neurotransmitter ____________________ is involved with depression. Drugs like _______________ increase its availability by blocking its reuptake. 17. The word “endorphins” is derived from the phrase “___________________ _______________.” Neurotransmitters in this group are the body’s natural ...
Syllabus
... nervous system including how it functions, how it develops, and how it changes with learning and memory. Analysis from the level of molecules to cells to simple circuits to complex networks to higher ...
... nervous system including how it functions, how it develops, and how it changes with learning and memory. Analysis from the level of molecules to cells to simple circuits to complex networks to higher ...
Pipecleaner Neuron Guide - spectrUM Discovery Area
... neurotransmitter) to the dendrite of another neuron. Neurotransmitters work like key and lock with the lock being on the receiving neuron that opens the door allowing sodium ions/electrical charge to flow into the neuron. ...
... neurotransmitter) to the dendrite of another neuron. Neurotransmitters work like key and lock with the lock being on the receiving neuron that opens the door allowing sodium ions/electrical charge to flow into the neuron. ...
The Human Organism: Introduction to Human Body - Nicole
... Axon terminals: the ends of the axons which come close to the dendrites of other neurons. Synapse: the space between the axon terminal and the dendrite of a neighbouring neuron ...
... Axon terminals: the ends of the axons which come close to the dendrites of other neurons. Synapse: the space between the axon terminal and the dendrite of a neighbouring neuron ...
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.