Lecture 12 - Fundamentals of the Nervous System
... Interneurons*: 99.98% of neurons (within CNS; can be long, e.g. travel down the spinal cord) ...
... Interneurons*: 99.98% of neurons (within CNS; can be long, e.g. travel down the spinal cord) ...
Spinal Cord and Spinal Nerves
... • Simplest, most common sensory receptor • Scattered through most of body; visceroceptors are of this type. • Type responsible for temperature sensation – Cold: 10-15 times more numerous than warm – Warm – Pain: responds to extreme cold or heat ...
... • Simplest, most common sensory receptor • Scattered through most of body; visceroceptors are of this type. • Type responsible for temperature sensation – Cold: 10-15 times more numerous than warm – Warm – Pain: responds to extreme cold or heat ...
Nervous system
... Return to Resting Potential • Sodium-potassium pump restores original configuration – Requires ATP ...
... Return to Resting Potential • Sodium-potassium pump restores original configuration – Requires ATP ...
Aldwin de Guzman Abstract - UF Center for Undergraduate Research
... occur at the cervical level with many resulting in respiratory impairment due to interference with brainstem generated ventilatory drive reaching spinal motor targets. The resulting respiratory insufficiency often leaves patients reliant on mechanical ventilation, decreasing quality of life as well ...
... occur at the cervical level with many resulting in respiratory impairment due to interference with brainstem generated ventilatory drive reaching spinal motor targets. The resulting respiratory insufficiency often leaves patients reliant on mechanical ventilation, decreasing quality of life as well ...
BASIC ANATOMY AND PHYSIOLOGY
... Both arteries and veins have three layers of tissue and in both the layers are a tough outer coat, a middle muscle layer and a smooth lining. The difference between the two is that the muscle layer is much thicker in the artery than in the vein. The artery requires a thick muscular wall so that it c ...
... Both arteries and veins have three layers of tissue and in both the layers are a tough outer coat, a middle muscle layer and a smooth lining. The difference between the two is that the muscle layer is much thicker in the artery than in the vein. The artery requires a thick muscular wall so that it c ...
Functional and structural adaptation in the central nervous system
... • A critical period in developmental psychology and biology represents early stages in life during which a system is highly sensitive to environmental stimuli, affecting the way it develops ...
... • A critical period in developmental psychology and biology represents early stages in life during which a system is highly sensitive to environmental stimuli, affecting the way it develops ...
The Nervous System: Neural Tissue
... • Sodium ions are in large concentration along the outside of the cell membrane • Potassium ions are in large concentration along the inside of the cell membrane ...
... • Sodium ions are in large concentration along the outside of the cell membrane • Potassium ions are in large concentration along the inside of the cell membrane ...
Motor neuron
... But also afferent (sensory) for the kinesthetic sense http://findarticles.com/p/articles/mi_g2699/is_0001/ai_2699000193/ ...
... But also afferent (sensory) for the kinesthetic sense http://findarticles.com/p/articles/mi_g2699/is_0001/ai_2699000193/ ...
Nervous System Part 6
... Consists of only motor nerves Divided into two divisions: 1. Sympathetic division 2. Parasympathetic division ...
... Consists of only motor nerves Divided into two divisions: 1. Sympathetic division 2. Parasympathetic division ...
ANS notes filled
... It has a similar function as acetylcholinesterase, but works at a slower rate. As a result some NE tends to diffuse out of the synapse into the surrounding tissues, where it may exert an effect. So the effects of sympathetic stimulation are more wide spread and last longer the parasympathetic stimul ...
... It has a similar function as acetylcholinesterase, but works at a slower rate. As a result some NE tends to diffuse out of the synapse into the surrounding tissues, where it may exert an effect. So the effects of sympathetic stimulation are more wide spread and last longer the parasympathetic stimul ...
Lecture 3
... • Cognitive tasks involved in learning and memory of motor task. • Lesions to humans or animals shows that distinct areas of the cb are necessary for spatial reasoning, keeping muscle tone during voluntary movement or reflexes • people can't walk in a coordinated smooth manner after cb lesion ie the ...
... • Cognitive tasks involved in learning and memory of motor task. • Lesions to humans or animals shows that distinct areas of the cb are necessary for spatial reasoning, keeping muscle tone during voluntary movement or reflexes • people can't walk in a coordinated smooth manner after cb lesion ie the ...
Chp 8 the senses
... •Maculae – receptors in the vestibule –Report on the position of the head –Send information via the vestibular nerve •Anatomy of the maculae –Hair cells are embedded in the otolithic membrane –Otoliths (tiny stones) float in a gel around the hair cells –Movements cause otoliths to bend the hair cell ...
... •Maculae – receptors in the vestibule –Report on the position of the head –Send information via the vestibular nerve •Anatomy of the maculae –Hair cells are embedded in the otolithic membrane –Otoliths (tiny stones) float in a gel around the hair cells –Movements cause otoliths to bend the hair cell ...
The Importance of the Nervous System
... channels to open in postsynaptic neuron, propagating the action potential • many drugs interfere with action of ...
... channels to open in postsynaptic neuron, propagating the action potential • many drugs interfere with action of ...
NIPS/Dec99/notebook3
... elicit bursting activity (1). This is possible because these fibers possess large presynaptic knobs containing round glutamatergic vesicles. The synaptic contacts are so powerful that a single primary afferent fiber can generate pairs or triplets of output spikes from several target DCN neurons (8) ...
... elicit bursting activity (1). This is possible because these fibers possess large presynaptic knobs containing round glutamatergic vesicles. The synaptic contacts are so powerful that a single primary afferent fiber can generate pairs or triplets of output spikes from several target DCN neurons (8) ...
Auditory: Stimulus Auditory
... • Receptors: Hair cells in the cochlea • Transduction: Physical opening of ion channels in the cochlea by the tectorial membrane • Afferent Signals: unevenly distributed to allow most signals for range of human speech • Pathway: contralateral to primary auditory cortex • CNS Areas: Primary in sup ...
... • Receptors: Hair cells in the cochlea • Transduction: Physical opening of ion channels in the cochlea by the tectorial membrane • Afferent Signals: unevenly distributed to allow most signals for range of human speech • Pathway: contralateral to primary auditory cortex • CNS Areas: Primary in sup ...
Musculoskeletal Physiology
... Monosynaptic stretch reflex When a skeletal muscle with an intact nerve supply is stretched, it contracts. This response is called the stretch reflex. The stimulus that initiates the reflex is stretch of the muscle, and the response is contraction of the muscle being stretched. The sense organ is a ...
... Monosynaptic stretch reflex When a skeletal muscle with an intact nerve supply is stretched, it contracts. This response is called the stretch reflex. The stimulus that initiates the reflex is stretch of the muscle, and the response is contraction of the muscle being stretched. The sense organ is a ...
Poster No: 1064 - Orthopaedic Research Society
... INTRODUCTION. It is generally considered that the genesis of radiculopathy associated with the degenerative conditions of the spine may result from both mechanical compression and circulatory disturbance.1,2 However, few studies have looked at changes of neurons within the lumbar cord caused by dist ...
... INTRODUCTION. It is generally considered that the genesis of radiculopathy associated with the degenerative conditions of the spine may result from both mechanical compression and circulatory disturbance.1,2 However, few studies have looked at changes of neurons within the lumbar cord caused by dist ...
Variant Median and Absent Musculocutaneous Nerve - Kamla
... grow towards the target organ by sensing molecular markers secreted by surrounding tissue. Location and innervations of the target organ (muscle, joint, skin) is dependent on secretion of certain tropic substances by target organs and its identification by growing axon. Absence of Musculocutaneous n ...
... grow towards the target organ by sensing molecular markers secreted by surrounding tissue. Location and innervations of the target organ (muscle, joint, skin) is dependent on secretion of certain tropic substances by target organs and its identification by growing axon. Absence of Musculocutaneous n ...
Frog Reflexes/synapses
... single synapses between sensory axons and motor neurons (a monosynaptic reflex). The required circuitry for this reflex is confined to the spinal cord, as shown in Figure 1. Sensory information also ascends to higher centers, but the brain is not necessary or required to perform the reflex. More com ...
... single synapses between sensory axons and motor neurons (a monosynaptic reflex). The required circuitry for this reflex is confined to the spinal cord, as shown in Figure 1. Sensory information also ascends to higher centers, but the brain is not necessary or required to perform the reflex. More com ...
Slideshow
... conducts faster than a smaller diameter. 2. If the axon is surrounded by myelin. 3. These can be very fast – 120 m/s (432 km/h) ...
... conducts faster than a smaller diameter. 2. If the axon is surrounded by myelin. 3. These can be very fast – 120 m/s (432 km/h) ...
The Scientific Foundations of Applied Kinesiology
... of cardiac auscultation in trained practitioners can be quite low, especially when listening for more obscure heart sounds. 6 This doesn’t mean that a stethoscope isn’t a valid diagnostic tool, only that it must be correlated with other data as part of a diagnostic workup. High levels of intra-exami ...
... of cardiac auscultation in trained practitioners can be quite low, especially when listening for more obscure heart sounds. 6 This doesn’t mean that a stethoscope isn’t a valid diagnostic tool, only that it must be correlated with other data as part of a diagnostic workup. High levels of intra-exami ...
The Nervous System - Ridgewood High School
... • The functional and structural unit of the nervous system • Specialized to conduct information from one part of the body to another • There are many, many different types of neurons but most have certain structural and functional characteristics in common: - Cell body (soma) - One or more specializ ...
... • The functional and structural unit of the nervous system • Specialized to conduct information from one part of the body to another • There are many, many different types of neurons but most have certain structural and functional characteristics in common: - Cell body (soma) - One or more specializ ...
Massage Helps Relieve Muscular Pain
... signals. Those stimulants which can override pain transmissions may include heat, cold, acupuncture, pressure, tactile (massage), electrical stimulation, vibration, and a number of other possibilities. There is still much to be learned about these concepts. ...
... signals. Those stimulants which can override pain transmissions may include heat, cold, acupuncture, pressure, tactile (massage), electrical stimulation, vibration, and a number of other possibilities. There is still much to be learned about these concepts. ...
Diseases of peripheral nervous system. Myasthenic, myopatic
... body from squatting position Gower´s sign - problematic elevation of the limbs ...
... body from squatting position Gower´s sign - problematic elevation of the limbs ...
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.