Student Guide Chapter 11
... a. Graded potentials occurring on receptors of sensory neurons are called receptor potentials, or generator potentials. b. Graded potentials occurring in response to a neurotransmitter released from another neuron is called a postsynaptic potential. 5. Action potentials, or nerve impulses, occur on ...
... a. Graded potentials occurring on receptors of sensory neurons are called receptor potentials, or generator potentials. b. Graded potentials occurring in response to a neurotransmitter released from another neuron is called a postsynaptic potential. 5. Action potentials, or nerve impulses, occur on ...
Chapter 11: Nervous System
... The amount of neurotransmitter released The amount of time the neurotransmitter is bound to receptors ...
... The amount of neurotransmitter released The amount of time the neurotransmitter is bound to receptors ...
Chapter 11: Nervous System
... The amount of neurotransmitter released The amount of time the neurotransmitter is bound to receptors ...
... The amount of neurotransmitter released The amount of time the neurotransmitter is bound to receptors ...
The Nervous System: Overview The nervous system Divisions of the
... processes, and contains two types of neuron: Motor neurons Sensory neurons ...
... processes, and contains two types of neuron: Motor neurons Sensory neurons ...
Nervous System
... Neurons are masses of nerve cells that transmit information Three main components: (1) Cell Body – contains the nucleus and two extensions (2) Dendrites – shorter, more numerous, receive information (3) Axon – single long “fiber” which conducts impulse away from the cell body, sends information ...
... Neurons are masses of nerve cells that transmit information Three main components: (1) Cell Body – contains the nucleus and two extensions (2) Dendrites – shorter, more numerous, receive information (3) Axon – single long “fiber” which conducts impulse away from the cell body, sends information ...
lecture-4-post
... Axon: Extension that sends information to other cells Action Potential: electric impulse based on balance of ions in the cell, all or none Myelin Sheath: contains electrical signal (prevents crossover & facilitates transmission Dendrites: receives information from other cells, multiple signals are t ...
... Axon: Extension that sends information to other cells Action Potential: electric impulse based on balance of ions in the cell, all or none Myelin Sheath: contains electrical signal (prevents crossover & facilitates transmission Dendrites: receives information from other cells, multiple signals are t ...
nervous system divisions cns, pns 1
... Monitors changes/events occurring in and outside the body. Such changes are known as stimuli and the cells that monitor them are receptors. ...
... Monitors changes/events occurring in and outside the body. Such changes are known as stimuli and the cells that monitor them are receptors. ...
LECTURE18.Olfaction&Taste
... and are continuously regenerated from basal cells Apical microvilli of taste cells are exposed to saliva through the taste pore Tasty substance is sensed at microvilli by several mechanisms, but always induces depolarization and action potential generation ...
... and are continuously regenerated from basal cells Apical microvilli of taste cells are exposed to saliva through the taste pore Tasty substance is sensed at microvilli by several mechanisms, but always induces depolarization and action potential generation ...
NMSI - 1 Intro to the Nervous System
... external and internal signals, transmit and integrate information, and produce responses. ...
... external and internal signals, transmit and integrate information, and produce responses. ...
Nerve Tissue - Coach Frei Science
... 17. ____ Another name for a motor neuron. 18. ____ The fatty substance that fills a Schwann cell and provides protection for the axon. 19. ____ The point of close contact between the telodendrites of one neuron and the dendrites of another neuron. 20. ____ Another name for a sensory neuron. 21. ____ ...
... 17. ____ Another name for a motor neuron. 18. ____ The fatty substance that fills a Schwann cell and provides protection for the axon. 19. ____ The point of close contact between the telodendrites of one neuron and the dendrites of another neuron. 20. ____ Another name for a sensory neuron. 21. ____ ...
Name
... 4. How do nerve impulses travel from one neuron to another? 5. What are the structure and functions of the central nervous system? 6. What are the structures and functions of the peripheral nervous system? 7. What is a reflex? Give examples 8. What are two ways in which the nervous system can be inj ...
... 4. How do nerve impulses travel from one neuron to another? 5. What are the structure and functions of the central nervous system? 6. What are the structures and functions of the peripheral nervous system? 7. What is a reflex? Give examples 8. What are two ways in which the nervous system can be inj ...
File
... Many action potentials are generated one after another along the cell membrane, causing a wave of depolarization (similar to falling dominos). When axons are myelinated, nerve impulses travel ...
... Many action potentials are generated one after another along the cell membrane, causing a wave of depolarization (similar to falling dominos). When axons are myelinated, nerve impulses travel ...
Mammalian Physiology Sensory Nervous System
... Sensory Input - provides the central nervous system with information about the internal and external environment Integration - CNS takes all the incoming information, processes it, then selects an appropriate action Motor Output – effects the physical responses dictated by the central nervous system ...
... Sensory Input - provides the central nervous system with information about the internal and external environment Integration - CNS takes all the incoming information, processes it, then selects an appropriate action Motor Output – effects the physical responses dictated by the central nervous system ...
The Nervous System
... • All of the nerves that are not a part of the central nervous system. • Somatic nervous System - regulates activities that are under conscious control (muscles) and pain reflexes. • Autonomic Nervous System – regulates activities that are automatic or involuntary. • Ex: heart rate, blood flow, musc ...
... • All of the nerves that are not a part of the central nervous system. • Somatic nervous System - regulates activities that are under conscious control (muscles) and pain reflexes. • Autonomic Nervous System – regulates activities that are automatic or involuntary. • Ex: heart rate, blood flow, musc ...
ANATOMY AND PHYSIOLOGY CH 16: SPECIAL SENSES
... 1.Transparent covering over the anterior portion of the eye. 2.Biconcave, flexible eye structure used to focus light on the retina 3.Taste elicited by bases 4.Olfactory receptor cells are unique because they are the only neurons known to undergo ______ through out adult life. 5.Projections on the to ...
... 1.Transparent covering over the anterior portion of the eye. 2.Biconcave, flexible eye structure used to focus light on the retina 3.Taste elicited by bases 4.Olfactory receptor cells are unique because they are the only neurons known to undergo ______ through out adult life. 5.Projections on the to ...
Cell types: Muscle cell Adipocyte Liver cell Pancreatic cell Example
... A single, long, cylindrical and slender process arising usually from the soma of a neuron is called an axon. The axon usually arises from a small conical elevation on the soma of a neuron that does not contain Nissl substance and is called an axon hillock. The plasma membrane of the axon is called t ...
... A single, long, cylindrical and slender process arising usually from the soma of a neuron is called an axon. The axon usually arises from a small conical elevation on the soma of a neuron that does not contain Nissl substance and is called an axon hillock. The plasma membrane of the axon is called t ...
Brain Questions
... 3- The central nervous system is composed of what? The peripheral nervous system is composed of what? 4- What is the axon of a neuron wrapped in? What is its function? 5- How do signals travel down the axon? 6- What role do dendrites have in cell to cell communication? 7- What is the difference betw ...
... 3- The central nervous system is composed of what? The peripheral nervous system is composed of what? 4- What is the axon of a neuron wrapped in? What is its function? 5- How do signals travel down the axon? 6- What role do dendrites have in cell to cell communication? 7- What is the difference betw ...
Nervous System PowerPoint
... stimulate adjacent areas 4. Refractory – potassium gates open – sodium gates close 5. At rest – Na+/K+ pump moving ions – potassium gates open ...
... stimulate adjacent areas 4. Refractory – potassium gates open – sodium gates close 5. At rest – Na+/K+ pump moving ions – potassium gates open ...
Nervous System
... Motor neurons pass their impulses to muscle cells. The location at which a neuron can transfer an impulse to another cell is a called a synapse. Neurotransmitters are chemicals used by a neuron to transmit an impulse ...
... Motor neurons pass their impulses to muscle cells. The location at which a neuron can transfer an impulse to another cell is a called a synapse. Neurotransmitters are chemicals used by a neuron to transmit an impulse ...
ppt - UTK-EECS
... Cell body: serves to integrate the inputs from the dendrites Axon: one cell has a single output which is axon. Axons may be very long (over a foot) Synaptic junction: an axon impinges on a dendrite which causes input/output signal transitions ...
... Cell body: serves to integrate the inputs from the dendrites Axon: one cell has a single output which is axon. Axons may be very long (over a foot) Synaptic junction: an axon impinges on a dendrite which causes input/output signal transitions ...
Slide 1
... Graded and Action Potentials • Depolarization and hyperpolarization contribute to nervous system function via – Graded potentials (GPs) • Help cell body decide whether to pass signal to axon • Can excite or inhibit a neuron – Action potentials (APs) • Pass signal down axon • Only excitatory ...
... Graded and Action Potentials • Depolarization and hyperpolarization contribute to nervous system function via – Graded potentials (GPs) • Help cell body decide whether to pass signal to axon • Can excite or inhibit a neuron – Action potentials (APs) • Pass signal down axon • Only excitatory ...
ppt
... 3. Explain the role of the neurotransmitter receptor in determining a neurotransmitter’s effect on the post-synaptic cell. 4. Compare the mechanisms of action and output of different neurotransmitters ...
... 3. Explain the role of the neurotransmitter receptor in determining a neurotransmitter’s effect on the post-synaptic cell. 4. Compare the mechanisms of action and output of different neurotransmitters ...
Nervous System Formative Study Guide File
... carry signals from the spinal cord to the muscles to produce (effect) movement. b. Sensory neurons Sensory neurons are nerve cells that transmit sensory information (sight, sound, feeling, etc.). They are activated by sensory input, and send projections to other elements of the nervous system, ultim ...
... carry signals from the spinal cord to the muscles to produce (effect) movement. b. Sensory neurons Sensory neurons are nerve cells that transmit sensory information (sight, sound, feeling, etc.). They are activated by sensory input, and send projections to other elements of the nervous system, ultim ...
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.