Airgas template
... Rationale: The axons of lower motor neurons pass through peripheral nerves to effector tissue in skeletal muscle. Upper motor neurons’ axons travel down the spinal cord. ...
... Rationale: The axons of lower motor neurons pass through peripheral nerves to effector tissue in skeletal muscle. Upper motor neurons’ axons travel down the spinal cord. ...
Biology and Behavior note frame
... a. The “_______________ _______________” during which a neuron, after firing, cannot _______________ another _______________ _______________ b. Once the refractory period is complete the neuron can _______________ _______________ 3. Resting Potential a. The state of a neuron when it is at _________ ...
... a. The “_______________ _______________” during which a neuron, after firing, cannot _______________ another _______________ _______________ b. Once the refractory period is complete the neuron can _______________ _______________ 3. Resting Potential a. The state of a neuron when it is at _________ ...
File - CYPA Psychology
... 1. Visual hallucinations, such as seeing people who are not really there, can be caused by: A) prolonged use of crystal meth (the crystalline form of methamphetamine). B) heat exhaustion. C) retinal abnormalities. D) stroke. ...
... 1. Visual hallucinations, such as seeing people who are not really there, can be caused by: A) prolonged use of crystal meth (the crystalline form of methamphetamine). B) heat exhaustion. C) retinal abnormalities. D) stroke. ...
Document
... Powerful, but fatigue with repetitive stimulation muscle fiber: thick, large, white (anaerobic, use glycolytic pathway to generate ATP) Motor neuron large, fast conduction, but higher firing threshold ...
... Powerful, but fatigue with repetitive stimulation muscle fiber: thick, large, white (anaerobic, use glycolytic pathway to generate ATP) Motor neuron large, fast conduction, but higher firing threshold ...
Nervous System Spinal Cord and Nerves Spinal Cord
... Centrally located gray matter consists of nerve cell bodies and processes Peripherally located white matter contains nerve tracts ...
... Centrally located gray matter consists of nerve cell bodies and processes Peripherally located white matter contains nerve tracts ...
The somatic sensory system
... A receptor potential is a depolarization event that if brings the membrane to a threshold, will become a nerve impulse (AP) ...
... A receptor potential is a depolarization event that if brings the membrane to a threshold, will become a nerve impulse (AP) ...
Too little
... Plasticity refers to the brain’s ability to modify itself after some types of injury or illness. “Practice makes perfect”- the more you practice a skill, the more the brain changes. ...
... Plasticity refers to the brain’s ability to modify itself after some types of injury or illness. “Practice makes perfect”- the more you practice a skill, the more the brain changes. ...
Introduction to Physiology: The Cell and General Physiology
... End Plate Potential and Action Potential - at the motor endplate • ACh released into the neuromuscular junction binds to, and opens, nicotinic ACh receptor channels on the muscle fiber membranes (Na+, K+, Ca2+). ...
... End Plate Potential and Action Potential - at the motor endplate • ACh released into the neuromuscular junction binds to, and opens, nicotinic ACh receptor channels on the muscle fiber membranes (Na+, K+, Ca2+). ...
No Slide Title
... Histology: Muscle & Nervous Tissues By Andrew W. Parsons Copyright 2000, All Rights Reserved. Material is in logical order: see texts, lab. outline for characteristics To advance to next slide: -click mouse or “page down” To return to the previous slide: - press “page up” ...
... Histology: Muscle & Nervous Tissues By Andrew W. Parsons Copyright 2000, All Rights Reserved. Material is in logical order: see texts, lab. outline for characteristics To advance to next slide: -click mouse or “page down” To return to the previous slide: - press “page up” ...
Anatomy Physiology Final Exam Review
... signal to his central nervous system for processing. b. Gregory’s central nervous system sends a signal to his sensory neurons in his hands, which makes him jump away from the hotplate. After jumping away, Gregory’s central nervous system sends another signal to the motor neurons in his arm to deter ...
... signal to his central nervous system for processing. b. Gregory’s central nervous system sends a signal to his sensory neurons in his hands, which makes him jump away from the hotplate. After jumping away, Gregory’s central nervous system sends another signal to the motor neurons in his arm to deter ...
CHAPTER 10: NERVOUS SYSTEM I
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, trigger an AP and begin a NI on a neuron. a. +15 mV = threshold = AP = NI; b. +5, +5, +5, = +15 mV = threshold = AP = NI. ...
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, trigger an AP and begin a NI on a neuron. a. +15 mV = threshold = AP = NI; b. +5, +5, +5, = +15 mV = threshold = AP = NI. ...
Technical Definitions
... The conduction of impulses between neurons operates under an “all-or-none” principle. This means that the magnitude of a neuron’s response to a stimulus is independent of the strength of that stimulus. When a single stimulus is strong enough to exceed a certain threshold potential, the neuron will f ...
... The conduction of impulses between neurons operates under an “all-or-none” principle. This means that the magnitude of a neuron’s response to a stimulus is independent of the strength of that stimulus. When a single stimulus is strong enough to exceed a certain threshold potential, the neuron will f ...
301 Definitions – Revised Shannon Benson
... The conduction of impulses between neurons operates under an “all-or-none” principle. This means that the magnitude of a neuron’s response to a stimulus is independent of the strength of that stimulus. When a single stimulus is strong enough to exceed a certain threshold potential, the neuron will f ...
... The conduction of impulses between neurons operates under an “all-or-none” principle. This means that the magnitude of a neuron’s response to a stimulus is independent of the strength of that stimulus. When a single stimulus is strong enough to exceed a certain threshold potential, the neuron will f ...
The Nervous System
... system are called neurons Sensory neurons carry information (impulses) from the sense organs to the central nervous system (CNS). Motor neurons carry information (impulses) from the central nervous system (CNS) to the muscles and glands. Interneurons, found in the CNS, connect the two. ...
... system are called neurons Sensory neurons carry information (impulses) from the sense organs to the central nervous system (CNS). Motor neurons carry information (impulses) from the central nervous system (CNS) to the muscles and glands. Interneurons, found in the CNS, connect the two. ...
AP Ψ - nrappsychology
... 3. Modifies pain signals to the brain 3. Gases- when nitric oxide or carbon monoxide are released by neurons, it spreads to nearby neurons, and signals the chemical reaction within the neuron rather than binding to receptors on its surface. a. Nitric oxide Refractory period- short rest period betwee ...
... 3. Modifies pain signals to the brain 3. Gases- when nitric oxide or carbon monoxide are released by neurons, it spreads to nearby neurons, and signals the chemical reaction within the neuron rather than binding to receptors on its surface. a. Nitric oxide Refractory period- short rest period betwee ...
Long-term depression
... Strong, high frequency stimulation Minimum stimulation 1 + burst of 4 4-7 Hz ...
... Strong, high frequency stimulation Minimum stimulation 1 + burst of 4 4-7 Hz ...
Nerve Cells PPT
... If we instantly increase sodium permeability, sodium will enter the cell, changing the charge of the inside of the cell so that it goes from negative to positive. The outside layer of the cell membrane would then go from positive to negative (the charges flip). This is called ...
... If we instantly increase sodium permeability, sodium will enter the cell, changing the charge of the inside of the cell so that it goes from negative to positive. The outside layer of the cell membrane would then go from positive to negative (the charges flip). This is called ...
MOTOR SYSTEM – Muscle, LMC, Spinal cord mechanisms of control
... - Motor cortex gets input form basal ganglia (via thalamus), cerebellum (via thalamus), and other cortical areas; Damage to one of these does not result in weakness, but produces disorders of the quality of movement 2. – A muscle is innervated by several hundred LMNs (cell bodies in anterior horn of ...
... - Motor cortex gets input form basal ganglia (via thalamus), cerebellum (via thalamus), and other cortical areas; Damage to one of these does not result in weakness, but produces disorders of the quality of movement 2. – A muscle is innervated by several hundred LMNs (cell bodies in anterior horn of ...
Neurons - MrsMcFadin
... • An impulse begins when a neuron is stimulated by another neuron or by the environment. • A neuron remains in its resting state until it receives a stimulus to its dendrites large enough to start a nerve impulse from the cell body • Once it begins, the impulse travels quickly down the axon away fro ...
... • An impulse begins when a neuron is stimulated by another neuron or by the environment. • A neuron remains in its resting state until it receives a stimulus to its dendrites large enough to start a nerve impulse from the cell body • Once it begins, the impulse travels quickly down the axon away fro ...
GLOSSOPHARYNGEAL NERVE
... Clinical features • Isolated lesions of the glossopharyngeal nerve are rare. It is more common to see combined lesions of the IX and X • Patients with IX and X nerve lesions present with symptoms of hoarseness, dysphagia, and dyspnea. ...
... Clinical features • Isolated lesions of the glossopharyngeal nerve are rare. It is more common to see combined lesions of the IX and X • Patients with IX and X nerve lesions present with symptoms of hoarseness, dysphagia, and dyspnea. ...
FIGURE LEGNEDS FIGURE 24.1 A dorsal root ganglion cell is a
... FIGURE 24.10 Schematic representation of the path taken by mechanoreceptor input to eventually reach three cortical targets. All relevant information reaches the ventrobasal complex and most is relayed to the areas of SI. From there, by steps through SII and the posterior parietal areas, somatosenso ...
... FIGURE 24.10 Schematic representation of the path taken by mechanoreceptor input to eventually reach three cortical targets. All relevant information reaches the ventrobasal complex and most is relayed to the areas of SI. From there, by steps through SII and the posterior parietal areas, somatosenso ...
Audition, the Body Senses, and the Chemical Senses
... Pain serves a functional role for survival ...
... Pain serves a functional role for survival ...
Chapter 49
... neuron triggers responses of several neurons, each of which in turn trigger responses on several other neurons in an ever increasing number of neurons farther and farther along the circuit. ...
... neuron triggers responses of several neurons, each of which in turn trigger responses on several other neurons in an ever increasing number of neurons farther and farther along the circuit. ...
The Nervous System
... 3. PNS is composed of nerves derived from the brain and spinal cord (12 pairs of cranial nerves and 31 pairs of spinal nerves), which serve as linkage between the CNS and the body. 4. PNS can be subdivided into Sensory (afferent) nerves and Motor (efferent) nerves. Sensory nerves send nerve impulse ...
... 3. PNS is composed of nerves derived from the brain and spinal cord (12 pairs of cranial nerves and 31 pairs of spinal nerves), which serve as linkage between the CNS and the body. 4. PNS can be subdivided into Sensory (afferent) nerves and Motor (efferent) nerves. Sensory nerves send nerve impulse ...
End-plate potential
End plate potentials (EPPs) are the depolarizations of skeletal muscle fibers caused by neurotransmitters binding to the postsynaptic membrane in the neuromuscular junction. They are called ""end plates"" because the postsynaptic terminals of muscle fibers have a large, saucer-like appearance. When an action potential reaches the axon terminal of a motor neuron, vesicles carrying neurotransmitters (mostly acetylcholine) are exocytosed and the contents are released into the neuromuscular junction. These neurotransmitters bind to receptors on the postsynaptic membrane and lead to its depolarization. In the absence of an action potential, acetylcholine vesicles spontaneously leak into the neuromuscular junction and cause very small depolarizations in the postsynaptic membrane. This small response (~0.5mV) is called a miniature end plate potential (MEPP) and is generated by one acetylcholine-containing vesicle. It represents the smallest possible depolarization which can be induced in a muscle.