Spinal nerves
... • The white matter is under the cortex and consists of myelinated axons running in three principal directions (Figure 14.12). – Association fibers connect and transmit nerve impulses between gyri in the same hemisphere. – Commissural fibers connect gyri in one cerebral hemisphere to the correspondin ...
... • The white matter is under the cortex and consists of myelinated axons running in three principal directions (Figure 14.12). – Association fibers connect and transmit nerve impulses between gyri in the same hemisphere. – Commissural fibers connect gyri in one cerebral hemisphere to the correspondin ...
The peripheral nervous system links the brain to the “real” world
... • Interneurons present (signal processing) ...
... • Interneurons present (signal processing) ...
Cortical Control of Motor Function-L18
... cortex especially from somatic sensory areas of parietal cortex and visual and auditory cortex. ...
... cortex especially from somatic sensory areas of parietal cortex and visual and auditory cortex. ...
Cranial Nerves
... pathways are composed of 3 major neurons: the primary, the secondary, and the tertiary (see Figure 2). The cell bodies of primary neurons are usually located outside the CNS in sensory ganglia. They are homologous with the dorsal root ganglia of the spinal cord. The cell bodies of secondary neurons ...
... pathways are composed of 3 major neurons: the primary, the secondary, and the tertiary (see Figure 2). The cell bodies of primary neurons are usually located outside the CNS in sensory ganglia. They are homologous with the dorsal root ganglia of the spinal cord. The cell bodies of secondary neurons ...
sensor
... • The signals from the cortex and from other sites are extremely small voltages (some micro volts). ...
... • The signals from the cortex and from other sites are extremely small voltages (some micro volts). ...
Note 11.1 - The Nervous System
... Myelin Sheath – is an insulated covering over the axon of a nerve cell. These cells consist of high lipid content, acting as electrical insulator, making sure the nerve impulse travels along the axon and accelerates the rate of which the electrical impulse travels. Node of Ranvier – is a regularly o ...
... Myelin Sheath – is an insulated covering over the axon of a nerve cell. These cells consist of high lipid content, acting as electrical insulator, making sure the nerve impulse travels along the axon and accelerates the rate of which the electrical impulse travels. Node of Ranvier – is a regularly o ...
PDF
... The overall goal of this dissertation project was to characterize the impact of ulceration on propulsive motility in guinea pig tri-nitro benzene sulfonic acid (TNBS) colitis. The study was comprised of three aims: to determine how ulceration affects motility; to examine changes in neural control of ...
... The overall goal of this dissertation project was to characterize the impact of ulceration on propulsive motility in guinea pig tri-nitro benzene sulfonic acid (TNBS) colitis. The study was comprised of three aims: to determine how ulceration affects motility; to examine changes in neural control of ...
Abbreviations
... neurological recovery status post cardiac arrest, especially during the first 24 hours of the cardiac arrest event. It has also been shown to benefit neurology patients: stroke, subarachnoid hemorrhage, traumatic brain injury and closed head injury. SCOPE This policy applies to all patients receivin ...
... neurological recovery status post cardiac arrest, especially during the first 24 hours of the cardiac arrest event. It has also been shown to benefit neurology patients: stroke, subarachnoid hemorrhage, traumatic brain injury and closed head injury. SCOPE This policy applies to all patients receivin ...
The Central Nervous System
... (Figure 2.7) will change their permeability depending upon the membrane potential. If there is a change in the membrane potential, these channels may open (or close). For example, a NT may attach to a receptor site and open a Na+ channel. Given the electrochemical gradient that exists, the Na+ will ...
... (Figure 2.7) will change their permeability depending upon the membrane potential. If there is a change in the membrane potential, these channels may open (or close). For example, a NT may attach to a receptor site and open a Na+ channel. Given the electrochemical gradient that exists, the Na+ will ...
Development of the Patient Safety Incident
... We have a further mapping session in December for users who cannot map their local systems to the NRLS (including eForm users, patients, and organisations who cannot currently participate in national learning at all). This will generate further User Stories to add to the case. We’re also procuring a ...
... We have a further mapping session in December for users who cannot map their local systems to the NRLS (including eForm users, patients, and organisations who cannot currently participate in national learning at all). This will generate further User Stories to add to the case. We’re also procuring a ...
Reflexes
... several limb muscles. Nerve impulses from one sensory neuron through association neurons ascend and descend in the spinal cord and activate association neurons in different segments of the spinal cord. This is a intersegmental reflex arc. Through intersegmental reflex arcs, one sensory neuron can ac ...
... several limb muscles. Nerve impulses from one sensory neuron through association neurons ascend and descend in the spinal cord and activate association neurons in different segments of the spinal cord. This is a intersegmental reflex arc. Through intersegmental reflex arcs, one sensory neuron can ac ...
chapter3 (new window)
... • People see an illusion of gray images in intersections of white areas. • Signals from bipolar cells cause effect – Receptors responding to white corridors send inhibiting signals to receptor at the ...
... • People see an illusion of gray images in intersections of white areas. • Signals from bipolar cells cause effect – Receptors responding to white corridors send inhibiting signals to receptor at the ...
Deep Tendon Reflex
... A protective measure to prevent tearing. Important in posture: because a slight lean to either side causes a stretch in the spinal, hip and leg muscles to the other side , which is quickly countered by the stretch reflex ...
... A protective measure to prevent tearing. Important in posture: because a slight lean to either side causes a stretch in the spinal, hip and leg muscles to the other side , which is quickly countered by the stretch reflex ...
Anatomy 9535b. THE CRANIAL NERVES
... The term “special somatic efferent” could be used for centrifugal fibres of the vestibulocochlear nerve (and, in birds and perhaps other vertebrates, in the optic nerve). The centrifugal fibres in VIII were discovered in 1942, long after the publication and general acceptance of Herrick’s classifica ...
... The term “special somatic efferent” could be used for centrifugal fibres of the vestibulocochlear nerve (and, in birds and perhaps other vertebrates, in the optic nerve). The centrifugal fibres in VIII were discovered in 1942, long after the publication and general acceptance of Herrick’s classifica ...
motor neuron
... excitation of the spindles causes reflex contraction of the large skeletal muscle fibers of the same muscle and also of closely allied synergistic muscles. ...
... excitation of the spindles causes reflex contraction of the large skeletal muscle fibers of the same muscle and also of closely allied synergistic muscles. ...
Spinal Cord - Mesa Community College
... Spinal cord - extends from foramen magnum to the level of the second lumbar vertebra (Fig ...
... Spinal cord - extends from foramen magnum to the level of the second lumbar vertebra (Fig ...
Categorical perception of somesthetic stimuli: psychophysical
... stimulus speeds (categorical neurons). In a light instruction task, we tested the possibility that the categorical neurons (n = 71) were associated with the intention to press, or with the trajectory of the hand to one of the two target switches used to indicate categorization. In this situation, ea ...
... stimulus speeds (categorical neurons). In a light instruction task, we tested the possibility that the categorical neurons (n = 71) were associated with the intention to press, or with the trajectory of the hand to one of the two target switches used to indicate categorization. In this situation, ea ...
Document
... All sensory information except smell passes through this, on the way to the cerebrum. Required for motor learning, coordination and storage of trained physical activity; communicates with the cerebrum through the thalamus. Regulate sensory info and motor response. The general name for several struct ...
... All sensory information except smell passes through this, on the way to the cerebrum. Required for motor learning, coordination and storage of trained physical activity; communicates with the cerebrum through the thalamus. Regulate sensory info and motor response. The general name for several struct ...
Document
... Mental branch of the IAN = mental nerve - union of several external branches - sensory from the chin, lower lip and labial mucosa - enters the skull at the mental foramen - then merges with the lingual branch of the IAN Lingual branch of the IAN - made up of dental branches from anterior mandibul ...
... Mental branch of the IAN = mental nerve - union of several external branches - sensory from the chin, lower lip and labial mucosa - enters the skull at the mental foramen - then merges with the lingual branch of the IAN Lingual branch of the IAN - made up of dental branches from anterior mandibul ...
Allochiria
Allochiria (from the Greek meaning ""other hand"") is a neurological disorder in which the patient responds to stimuli presented to one side of their body as if the stimuli had been presented at the opposite side. It is associated with spatial transpositions, usually symmetrical, of stimuli from one side of the body (or of the space) to the opposite one. Thus a touch to the left arm will be reported as a touch to the right arm, which is also known as somatosensory allochiria. If the auditory or visual senses are affected, sounds (a person's voice for instance) will be reported as being heard on the opposite side to that on which they occur and objects presented visually will be reported as having been presented on the opposite side. Often patients may express allochiria in their drawing while copying an image. Allochiria often co-occurs with unilateral neglect and, like hemispatial neglect, the disorder arises commonly from damage to the right parietal lobe.Allochiria is often confused with alloesthesia, also known as false allochiria. True allochiria is a symptom of dyschiria and unilateral neglect. Dyschiria is a disorder in the localization of sensation due to various degrees of dissociation and cause impairment in one side causing the inability to tell which side of the body was touched.