Neurophysiology Complete
... Action potential: when depolarization reaches a certain point so that the membrane polarity changes Repolarization: within a millisecond Na and K return to their original state and the resting membrane potentil is restored Absolute refractory period: when the Na gates are open and the neuron is tota ...
... Action potential: when depolarization reaches a certain point so that the membrane polarity changes Repolarization: within a millisecond Na and K return to their original state and the resting membrane potentil is restored Absolute refractory period: when the Na gates are open and the neuron is tota ...
Neural Integration - Oakton Community College
... Rapid, automatic responses to stimuli Components of reflex arc: Stimulus Receptor--translates stimulus into A.P. Sensory neuron--carries A.P. to CNS Integration center--CNS Motor neuron--carries A.P. to effector (muscle) Effector--executes appropriate response ...
... Rapid, automatic responses to stimuli Components of reflex arc: Stimulus Receptor--translates stimulus into A.P. Sensory neuron--carries A.P. to CNS Integration center--CNS Motor neuron--carries A.P. to effector (muscle) Effector--executes appropriate response ...
nervous system
... – Somatic nervous system • VOLUNTARY (generally) • Somatic nerve fibers that conduct impulses from the CNS to skeletal muscles ...
... – Somatic nervous system • VOLUNTARY (generally) • Somatic nerve fibers that conduct impulses from the CNS to skeletal muscles ...
Sensation
... 10+ million receptors to sense smell. Unlike taste, there are many different forms of smell ...
... 10+ million receptors to sense smell. Unlike taste, there are many different forms of smell ...
Nervous System – Chapter 10
... 1. Central nervous system made of brain and spinal cord 2. Peripheral nervous system – branches 3. Autonomic nervous system – “cave man” response fight or flight B. Basic unit of the nervous system is the neuron 1. Neuroglial cells – cells that surround nervous tissue 2. Parts of Neuron: a. cell bod ...
... 1. Central nervous system made of brain and spinal cord 2. Peripheral nervous system – branches 3. Autonomic nervous system – “cave man” response fight or flight B. Basic unit of the nervous system is the neuron 1. Neuroglial cells – cells that surround nervous tissue 2. Parts of Neuron: a. cell bod ...
Histology05-NerveTissue
... Myelination is a dynamic process, which involves the ensheathment of the the axon by the glial cell and subsequently the extrusion of cytoplasm from parts of the glial cell. Adhesive proteins on the cytoplasmic and the extracellular side of the plasma membrane contribute to a tight apposition of th ...
... Myelination is a dynamic process, which involves the ensheathment of the the axon by the glial cell and subsequently the extrusion of cytoplasm from parts of the glial cell. Adhesive proteins on the cytoplasmic and the extracellular side of the plasma membrane contribute to a tight apposition of th ...
The Nervous System
... This node to node transmission, called saltatory conduction, can produce transmission speeds of up to 200 meters per second and explains the speed at which we can react to ...
... This node to node transmission, called saltatory conduction, can produce transmission speeds of up to 200 meters per second and explains the speed at which we can react to ...
Chapter 15 - Marion ISD
... Chemoreceptors activated by amount or changing concentration of certain chemicals; e.g., taste and smell Pain receptors - Nociceptors—activated by intense stimuli that may damage tissue; the sensation produced is pain Thermoreceptors — activated by changes in temperature Mechanoreceptors activated w ...
... Chemoreceptors activated by amount or changing concentration of certain chemicals; e.g., taste and smell Pain receptors - Nociceptors—activated by intense stimuli that may damage tissue; the sensation produced is pain Thermoreceptors — activated by changes in temperature Mechanoreceptors activated w ...
Nerves, structures, and organs of the head 1. Left cerebral
... Midbrain (13) Also called the mesencephalon, it is located between the diencephalon and the pons, Olive (18) Two structures on the surface of the medulla which relay impulses from the cerebellum down the spinal cord, then to skeletal muscles. Pineal body (10) An endocrine gland found in the brain th ...
... Midbrain (13) Also called the mesencephalon, it is located between the diencephalon and the pons, Olive (18) Two structures on the surface of the medulla which relay impulses from the cerebellum down the spinal cord, then to skeletal muscles. Pineal body (10) An endocrine gland found in the brain th ...
Chapter 13: Peripheral Nervous System
... The receptor must have specificity for the stimulus energy The receptor’s receptive field must be stimulated Stimulus energy must be converted into a graded potential A generator potential in the associated sensory neuron must reach threshold ...
... The receptor must have specificity for the stimulus energy The receptor’s receptive field must be stimulated Stimulus energy must be converted into a graded potential A generator potential in the associated sensory neuron must reach threshold ...
Outline 12
... inadequate to meet is metabolic needs They respond to excessive stimulation from _______ or chemicals Mechanoreceptors respond to physical forces on cells caused by touch, pressure, stretch, tension, or vibration They include the organs of _________________ and balance They include many rece ...
... inadequate to meet is metabolic needs They respond to excessive stimulation from _______ or chemicals Mechanoreceptors respond to physical forces on cells caused by touch, pressure, stretch, tension, or vibration They include the organs of _________________ and balance They include many rece ...
ap ch 48 49 powerpoint - Pregitzersninjascienceclasses
... unstimulated neuron • Action potential: A nerve impulse that can be transmitted to another nerve ...
... unstimulated neuron • Action potential: A nerve impulse that can be transmitted to another nerve ...
Peripheral Nervous System
... Somatic & Autonomic Nerves • Somatic nerves control skeletal muscle, bones, skin that a person can control – Sensory neurons which relay info about environment to CNS Reflex Arc – Motor neurons which initiate appropriate response ...
... Somatic & Autonomic Nerves • Somatic nerves control skeletal muscle, bones, skin that a person can control – Sensory neurons which relay info about environment to CNS Reflex Arc – Motor neurons which initiate appropriate response ...
Nervous System Test File
... 3. A motor neuron carries stimuli from the CNS to the body. a. true b. false 4. Sensory neurons transmit impulses from the body to the CNS. a. true b. false 5. Neurons that transmit impulses from sensory receptors in the skin or internal organs toward the CNS are called: a. receptor neurons b. axons ...
... 3. A motor neuron carries stimuli from the CNS to the body. a. true b. false 4. Sensory neurons transmit impulses from the body to the CNS. a. true b. false 5. Neurons that transmit impulses from sensory receptors in the skin or internal organs toward the CNS are called: a. receptor neurons b. axons ...
beyond the 5 senses – nervous system-lesson 2
... sent along the afferent nerves to the CNS where they synapse with motor neurons of the same muscle. ...
... sent along the afferent nerves to the CNS where they synapse with motor neurons of the same muscle. ...
Chapter 9: Nervous System guide—Please complete these notes on
... Nerves do the same 9.10 Nerve Pathways 28. What are they? The paths a nerve impulse follows as it travels through the nervous system 29. A reflex arc makes up the simplest nerve pathway (only a few neurons). ...
... Nerves do the same 9.10 Nerve Pathways 28. What are they? The paths a nerve impulse follows as it travels through the nervous system 29. A reflex arc makes up the simplest nerve pathway (only a few neurons). ...
Neuromuscular and Neurological Systems
... Musculoskeletal System Bones, joints, and muscles Needed for Support, Movement, Protection, and production of red blood cells, and storage for essential minerals Fall Precaution Do No Harm! ...
... Musculoskeletal System Bones, joints, and muscles Needed for Support, Movement, Protection, and production of red blood cells, and storage for essential minerals Fall Precaution Do No Harm! ...
Anatomy of the Nervous System
... • Nerve impulses jump from one node to another speed up movement of nerve impulses. – Nerve impulses move much faster along myelinated nerve fibres than nonmyelinated ones. (Nerve impulses move much faster along smaller diameter axons) ...
... • Nerve impulses jump from one node to another speed up movement of nerve impulses. – Nerve impulses move much faster along myelinated nerve fibres than nonmyelinated ones. (Nerve impulses move much faster along smaller diameter axons) ...
Day 4 - Scott County Schools
... Read this passage based on the text and answer the questions that follow. The structure of a neuron suits it for its function of transmitting nerve impulses. It has a special shape that lets it pass electrical signals to and from other cells. A neuron has three main parts: cell body, dendrites, and ...
... Read this passage based on the text and answer the questions that follow. The structure of a neuron suits it for its function of transmitting nerve impulses. It has a special shape that lets it pass electrical signals to and from other cells. A neuron has three main parts: cell body, dendrites, and ...
Nervous System Fundamentals
... c. ______________ - cytoskeletal intermediate filaments that give the neuron its shape and transport materials 2. ______________ - treelike processes extending from cell body that ___________ impulses from receptors or other neurons and conduct the impulses to the cell body. 3. ________ – single pro ...
... c. ______________ - cytoskeletal intermediate filaments that give the neuron its shape and transport materials 2. ______________ - treelike processes extending from cell body that ___________ impulses from receptors or other neurons and conduct the impulses to the cell body. 3. ________ – single pro ...
The Peripheral Nervous System
... The sensory receptors, (neurons), in the skin allow us to experience: Tactile sensations, (touch, pressure). Thermal sensations, (heat and cold). Painful sensations ...
... The sensory receptors, (neurons), in the skin allow us to experience: Tactile sensations, (touch, pressure). Thermal sensations, (heat and cold). Painful sensations ...
The Behavior of Neurons
... truly higher-order elements, whose responses depend on many factors. Usually they react very well when a small target, either black or white, is brought into their excitatory field of vision at a rather slow speed. But they make little or no response to very fast or very slow movement. The response ...
... truly higher-order elements, whose responses depend on many factors. Usually they react very well when a small target, either black or white, is brought into their excitatory field of vision at a rather slow speed. But they make little or no response to very fast or very slow movement. The response ...
Nervous System - Mrs. Riggs Online
... sweeps through neuron and races down axon; propagated by fast-acting, voltagesensing ion gates that quickly open and close, allowing Na and K ions to briefly flow into and out of cell; after action potential passes, cell membrane's ion pumps restore cell's original ion balance to be ready in as litt ...
... sweeps through neuron and races down axon; propagated by fast-acting, voltagesensing ion gates that quickly open and close, allowing Na and K ions to briefly flow into and out of cell; after action potential passes, cell membrane's ion pumps restore cell's original ion balance to be ready in as litt ...
note taking guide
... Neurons differ in _____________________, ______________, and ________________ of their cell bodies ...
... Neurons differ in _____________________, ______________, and ________________ of their cell bodies ...
Cutaneous mechanoreceptors
... sustained response (in the form of action potentials or spikes) to mechanical deflection of the tissue. They are the most sensitive of the four main types of mechanoreceptors to vibrations at low frequencies, up to 15 Hz. Because of their sustained response to pressure, Merkel nerve endings are clas ...
... sustained response (in the form of action potentials or spikes) to mechanical deflection of the tissue. They are the most sensitive of the four main types of mechanoreceptors to vibrations at low frequencies, up to 15 Hz. Because of their sustained response to pressure, Merkel nerve endings are clas ...
Microneurography
Microneurography is a neurophysiological method employed by scientists to visualize and record the normal traffic of nerve impulses that are conducted in peripheral nerves of waking human subjects. The method has been successfully employed to reveal functional properties of a number of neural systems, e.g. sensory systems related to touch, pain, and muscle sense as well as sympathetic activity controlling the constriction state of blood vessels. To study nerve impulses of an identified neural system, a fine tungsten needle electrode is inserted into the nerve and connected to a high gain recording amplifier. The exact position of the electrode tip within the nerve is then adjusted in minute steps until the electrode discriminates impulses of the neural system of interest. A unique feature and a significant strength of the microneurography method is that subjects are fully awake and able to cooperate in tests requiring mental attention, while impulses in a representative nerve fibre or set of nerve fibres are recorded, e.g. when cutaneous sense organs are stimulated or subjects perform voluntary precision movements.