The Brain and Cranial Nerves
... • 14-9 Identify the major anatomical subdivisions and functions of the cerebrum, and discuss the origin and significance of the major types of brain waves seen in an electroencephalogram. • 14-10 Describe representative examples of cranial reflexes that produce somatic responses or visceral response ...
... • 14-9 Identify the major anatomical subdivisions and functions of the cerebrum, and discuss the origin and significance of the major types of brain waves seen in an electroencephalogram. • 14-10 Describe representative examples of cranial reflexes that produce somatic responses or visceral response ...
Chap 13 Powerpoint
... The site used for most lumbar punctures is between the 3rd and 4th (or 4th and 5th) lumbar vertebrae - below the termination of the actual cord in the region of the cauda equina. With the needle in the SAS, CSF can be sampled. ...
... The site used for most lumbar punctures is between the 3rd and 4th (or 4th and 5th) lumbar vertebrae - below the termination of the actual cord in the region of the cauda equina. With the needle in the SAS, CSF can be sampled. ...
Neurons - AC Reynolds High
... Sensory afferent fibers – carry impulses from skin, skeletal muscles, and joints to the brain Visceral afferent fibers – transmit impulses from visceral organs to the brain ...
... Sensory afferent fibers – carry impulses from skin, skeletal muscles, and joints to the brain Visceral afferent fibers – transmit impulses from visceral organs to the brain ...
Direct and Indirect Activation of Cortical Neurons by Electrical
... 1972), and lateral head and body movements (Yeomans et al. 1986). These estimates are based on the activation of subcortical fibers. Two groups have studied the currentspread properties of electrical stimulation within neocortex using behavioral methods. Murasugi et al. (1993) studied such propertie ...
... 1972), and lateral head and body movements (Yeomans et al. 1986). These estimates are based on the activation of subcortical fibers. Two groups have studied the currentspread properties of electrical stimulation within neocortex using behavioral methods. Murasugi et al. (1993) studied such propertie ...
Neuroscience - Exam 1
... elements that give the channels their specific properties: voltage dependence, gating, ion selectivity and inactivation Describe how ion flow through voltage-sensitive Na and K channels produces macroscopic membrane currents which also show features of activation and inactivation and when combined ...
... elements that give the channels their specific properties: voltage dependence, gating, ion selectivity and inactivation Describe how ion flow through voltage-sensitive Na and K channels produces macroscopic membrane currents which also show features of activation and inactivation and when combined ...
PDF
... were mainly restricted to the dorsal CN (DCN) and only relatively low frequency pulse trains were tested (up to 400 pps). Meanwhile, it has been demonstrated that significant improvement in speech recognition and a more natural pattern of activity in AN fibers can be achieved using high-rate pulsati ...
... were mainly restricted to the dorsal CN (DCN) and only relatively low frequency pulse trains were tested (up to 400 pps). Meanwhile, it has been demonstrated that significant improvement in speech recognition and a more natural pattern of activity in AN fibers can be achieved using high-rate pulsati ...
C6.4 PPT - Destiny High School
... – Warm temperatures increase ion diffusion rates. – This increases the speed at which impulses will travel. – Cold temperatures decrease diffusion rates. » Example: when you hold an ice cube you have a numbing sensation. The cold area takes longer to send information about touch, pain, pressure, and ...
... – Warm temperatures increase ion diffusion rates. – This increases the speed at which impulses will travel. – Cold temperatures decrease diffusion rates. » Example: when you hold an ice cube you have a numbing sensation. The cold area takes longer to send information about touch, pain, pressure, and ...
Nervous System Ch 9
... – Consists mainly of the posterior pituitary gland, pituitary stalk, and gray matter – Acts as the major center for controlling the ANS; therefore, helps control the functioning of most internal organs – Controls hormone secretion by anterior and posterior pituitary glands; therefore it indirectly h ...
... – Consists mainly of the posterior pituitary gland, pituitary stalk, and gray matter – Acts as the major center for controlling the ANS; therefore, helps control the functioning of most internal organs – Controls hormone secretion by anterior and posterior pituitary glands; therefore it indirectly h ...
Location of the polysensory zone in the precentral gyrus
... electrode was tilted 30° to the monkey’s left from the sagittal plane. In this way, the electrode was approximately normal to the cortical surface of the left hemisphere. In monkey 3, the electrode was in the sagittal plane. For this monkey, in order to plot the data, the medial-lateral positions of ...
... electrode was tilted 30° to the monkey’s left from the sagittal plane. In this way, the electrode was approximately normal to the cortical surface of the left hemisphere. In monkey 3, the electrode was in the sagittal plane. For this monkey, in order to plot the data, the medial-lateral positions of ...
Chapter 2 The Neural Impulse
... B) Some neurons have axons that are several feet long. C) The nerve impulse involves the exchange of electrically charged ions across the cell membrane. D) Within a neuron, information flows from dendrites to cell body to axon. ...
... B) Some neurons have axons that are several feet long. C) The nerve impulse involves the exchange of electrically charged ions across the cell membrane. D) Within a neuron, information flows from dendrites to cell body to axon. ...
NeuroCube Help
... simulation. After setting all these parameters, click ‘Generate cube’ and the distribution of neurons will be created. Figure 2 shows the interface after clicking ‘Generate cube’. Instead of clicking ‘Generate cube’, you could also have clicked ‘Load cube’ if you wanted to load a neuron configurati ...
... simulation. After setting all these parameters, click ‘Generate cube’ and the distribution of neurons will be created. Figure 2 shows the interface after clicking ‘Generate cube’. Instead of clicking ‘Generate cube’, you could also have clicked ‘Load cube’ if you wanted to load a neuron configurati ...
Chapter 11 Part 1 - Trimble County Schools
... fibers of the PNS – regenerate damaged peripheral nerve fibers Satellite cells surround neuron cell bodies with ...
... fibers of the PNS – regenerate damaged peripheral nerve fibers Satellite cells surround neuron cell bodies with ...
Multimodal imaging and the neural basis of EEG and fMRI
... position of the experiment subject during the simultaneous recording (supine rather than sitting upright) and the loud noise caused by the MRI gradient system are all factors altering the experimental effects. Study of spontaneous (paradigm-free) brain activity, such as natural variations in EEG bac ...
... position of the experiment subject during the simultaneous recording (supine rather than sitting upright) and the loud noise caused by the MRI gradient system are all factors altering the experimental effects. Study of spontaneous (paradigm-free) brain activity, such as natural variations in EEG bac ...
PDF
... MRI and the CT. The images can then be rendered in 3-D, superimposed and displayed in MRIcro, another freely available software package. While we used the commercially available package Curry 4.6, to visualize the 3-D reconstruction in this study our main aim in doing so was to be able to compare ou ...
... MRI and the CT. The images can then be rendered in 3-D, superimposed and displayed in MRIcro, another freely available software package. While we used the commercially available package Curry 4.6, to visualize the 3-D reconstruction in this study our main aim in doing so was to be able to compare ou ...
prm homeomesotherapy and myofascial triggers
... through a discontinuity of the fascia propria or, in the more superficial TPs, of the fascia corporis superficialis. This statement has never been confirmed from an anatomopathological standpoint, even if, unfortunately, it has been passed from text to text without a critical revision or further ela ...
... through a discontinuity of the fascia propria or, in the more superficial TPs, of the fascia corporis superficialis. This statement has never been confirmed from an anatomopathological standpoint, even if, unfortunately, it has been passed from text to text without a critical revision or further ela ...
- Wiley Online Library
... insular and cingulate cortices that receive these inputs can be regarded as limbic sensory and limbic motor cortices, respectively, because their major descending projections are to PB and PAG, respectively.5,14,15 The activation in the fundus of the central sulcus (area 3a) could be a viscero-motor ...
... insular and cingulate cortices that receive these inputs can be regarded as limbic sensory and limbic motor cortices, respectively, because their major descending projections are to PB and PAG, respectively.5,14,15 The activation in the fundus of the central sulcus (area 3a) could be a viscero-motor ...
pdf
... SCS in these intractable cases is superior to conventional medical management and reoperation (4–11), and because of this reason more than 50,000 spinal cord stimulators are implanted on a yearly basis (25). As C2 stimulation can be performed subthreshold for paresthesias and this results in similar ...
... SCS in these intractable cases is superior to conventional medical management and reoperation (4–11), and because of this reason more than 50,000 spinal cord stimulators are implanted on a yearly basis (25). As C2 stimulation can be performed subthreshold for paresthesias and this results in similar ...
Compared to other cortical areas, muscle contraction is most easily
... long-term effects are less pronounced than often assumed. Careful testing is required to discern long-term motor deficits and, although much emphasis has been placed on species differences, comparable deficits follow pyramidal-tract transections in macaque monkeys, marsupial phalangers, rats, and ha ...
... long-term effects are less pronounced than often assumed. Careful testing is required to discern long-term motor deficits and, although much emphasis has been placed on species differences, comparable deficits follow pyramidal-tract transections in macaque monkeys, marsupial phalangers, rats, and ha ...
Respiratory Centers
... – CO2 easily crosses blood-brain barrier, in CSF the CO2 reacts with water and releases H+, central chemoreceptors strongly stimulate inspiratory center – corrected by hyperventilation, pushes reaction to the left by “blowing off ” CO2 ...
... – CO2 easily crosses blood-brain barrier, in CSF the CO2 reacts with water and releases H+, central chemoreceptors strongly stimulate inspiratory center – corrected by hyperventilation, pushes reaction to the left by “blowing off ” CO2 ...
Local anaesthetic and additive drugs
... of action because only the uncharged form is lipid soluble and is able to diffuse quickly across the myelin layers of nerve fibres. Local anaesthetics are weak bases but are injected in acidic solutions as hydrochloric salts. The tertiary amine (hydrophobic or water insoluble) becomes quarternary an ...
... of action because only the uncharged form is lipid soluble and is able to diffuse quickly across the myelin layers of nerve fibres. Local anaesthetics are weak bases but are injected in acidic solutions as hydrochloric salts. The tertiary amine (hydrophobic or water insoluble) becomes quarternary an ...
Effect of Tactile Inputs on Thalamic Responses to Noxious
... the dorsal column nuclei (DCN) respond to both visceral and tactile stimulation (for review, see Al-Chaer et al. 1996a; Berkley and Hubscher 1995; Willis et al. 1999). Recent studies (e.g., Al-Chaer et al. 1996a– c, 1997a,b, 1998) have demonstrated that the role played by the DC system in mediating ...
... the dorsal column nuclei (DCN) respond to both visceral and tactile stimulation (for review, see Al-Chaer et al. 1996a; Berkley and Hubscher 1995; Willis et al. 1999). Recent studies (e.g., Al-Chaer et al. 1996a– c, 1997a,b, 1998) have demonstrated that the role played by the DC system in mediating ...
Rehabilitation of Neck Pain and Myofascial Pain Syndrome
... Home cervical traction units may decrease radicular symptoms. In theory, traction distracts the neural foramen and decompresses the affected nerve root, reduced the pressure in discs, helps open the facet joints and release the tight neck muscles Typically, eight to 12 lb of traction (1/8 to ¼ body ...
... Home cervical traction units may decrease radicular symptoms. In theory, traction distracts the neural foramen and decompresses the affected nerve root, reduced the pressure in discs, helps open the facet joints and release the tight neck muscles Typically, eight to 12 lb of traction (1/8 to ¼ body ...
Cranial Nerves with a Focus on Swallowing and Voice.
... - Cotton swab or pinprick light touch to lower gum and mandible - Touch anterior tongue on both sides - Observe contours of masseter at rest. Observe chewing. “Bite down” and palpate masseter muscles ...
... - Cotton swab or pinprick light touch to lower gum and mandible - Touch anterior tongue on both sides - Observe contours of masseter at rest. Observe chewing. “Bite down” and palpate masseter muscles ...
Thalamus and Limbic System
... Latin word Limbus, for "border" or "edge". It separates the medial surface of the cerebral cortex from the diencephalon It consists of a number of cortical & subcortical structures with looped connections that all project to the hypothalamus ...
... Latin word Limbus, for "border" or "edge". It separates the medial surface of the cerebral cortex from the diencephalon It consists of a number of cortical & subcortical structures with looped connections that all project to the hypothalamus ...
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.