![Single-Unit Analysis of the Spinal Dorsal Horn in Patients With](http://s1.studyres.com/store/data/002890243_1-633483ad869ced26111b6252d7ef50d3-300x300.png)
Single-Unit Analysis of the Spinal Dorsal Horn in Patients With
... Summary: Despite the key role played by the dorsal horn of the spinal cord in pain modulation, single-unit recordings have only been performed very rarely in this structure in humans. The authors report the results of a statistical analysis of 64 unit recordings from the human dorsal horn. The recor ...
... Summary: Despite the key role played by the dorsal horn of the spinal cord in pain modulation, single-unit recordings have only been performed very rarely in this structure in humans. The authors report the results of a statistical analysis of 64 unit recordings from the human dorsal horn. The recor ...
Lab 2. Medulla - Stritch School of Medicine
... of the inferior olive. • dorsal and ventral cochlear nuclei – seen the right side arching over the inferior cerebellar peduncle. – receive auditory input from the cochlea carried by CN VIII. ...
... of the inferior olive. • dorsal and ventral cochlear nuclei – seen the right side arching over the inferior cerebellar peduncle. – receive auditory input from the cochlea carried by CN VIII. ...
Frontiers in Zoology - Deep Metazoan Phylogeny
... sister-group relationship of Chaetognatha to the Lophotrochozoa whereas Marlétaz et al. [53] in a maximum likelihood and bayesian inference tree based on the analysis of a concentrated 79 proteins and 11,667 positions ribosomal protein data set proposed a sister-group relationship of Chaetognatha to ...
... sister-group relationship of Chaetognatha to the Lophotrochozoa whereas Marlétaz et al. [53] in a maximum likelihood and bayesian inference tree based on the analysis of a concentrated 79 proteins and 11,667 positions ribosomal protein data set proposed a sister-group relationship of Chaetognatha to ...
Retinal ganglion cell synchronization by fixational eye movements
... Recognition of visual stimulus features depends on the flow of action potentials from retinal ganglion cells to the brain. The basic features of time-varying stimuli can be estimated from the activity of the ganglion cell population by using artificial neural networks, discriminant analysis or linea ...
... Recognition of visual stimulus features depends on the flow of action potentials from retinal ganglion cells to the brain. The basic features of time-varying stimuli can be estimated from the activity of the ganglion cell population by using artificial neural networks, discriminant analysis or linea ...
What is the Pelvic Floor? The pelvic floor is a set of muscles that
... the levator ani muscle. The levator ani muscle is a set of muscles that spread across the bottom of the pelvic cavity like a hammock and composes part of the pelvic floor. The levator ani muscle supports the pelvic organs by surrounding and supporting the structures that pass through it such as the ...
... the levator ani muscle. The levator ani muscle is a set of muscles that spread across the bottom of the pelvic cavity like a hammock and composes part of the pelvic floor. The levator ani muscle supports the pelvic organs by surrounding and supporting the structures that pass through it such as the ...
The sympathetic control of blood pressure.
... are fairly uniform and have been thoroughly characterized from recordings in anaesthetized or awake animals and from numerous recordings of ganglionic neurons in awake humans19,21,23 (FIG. 2). Barosensitive efferents are subject to numerous reflex regulations that operate as either feedback or feedf ...
... are fairly uniform and have been thoroughly characterized from recordings in anaesthetized or awake animals and from numerous recordings of ganglionic neurons in awake humans19,21,23 (FIG. 2). Barosensitive efferents are subject to numerous reflex regulations that operate as either feedback or feedf ...
- Wiley Online Library
... section of the wall extends between approximately vertebrae T1 and L5 and extends laterally to include the kidneys and adrenal glands. While all the viscera in the peritoneal cavity were removed, the kidneys and adrenal glands, and their associated vessels and nervous tissue in the retroperitoneal r ...
... section of the wall extends between approximately vertebrae T1 and L5 and extends laterally to include the kidneys and adrenal glands. While all the viscera in the peritoneal cavity were removed, the kidneys and adrenal glands, and their associated vessels and nervous tissue in the retroperitoneal r ...
Inter-regional Contribution of Enhanced Activity of the Primary
... excitatory neurons in response to L4 electrical stimulation. g–i, The relationship between stimulus intensity and responding cell neuronal activity elicited in response to ratio (g), amplitude of Ca 2⫹ transients (h), and response probability per cell (i). Excitability of L2/3 excitatory neurons of ...
... excitatory neurons in response to L4 electrical stimulation. g–i, The relationship between stimulus intensity and responding cell neuronal activity elicited in response to ratio (g), amplitude of Ca 2⫹ transients (h), and response probability per cell (i). Excitability of L2/3 excitatory neurons of ...
Chapter 25: The Spine
... • Pain in your neck? Numbness, tingling, burning? • Can you move your ankles and toes? • Do you have equal strength in both hands? ...
... • Pain in your neck? Numbness, tingling, burning? • Can you move your ankles and toes? • Do you have equal strength in both hands? ...
- Wiley Online Library
... laevis. (a) The ex vivo brain (Figure 1a) now viewed from the side and illustrating subdivisions (hindbrain, midbrain, and forebrain) that include neural circuits participating in initiation of vocal patterns. In an adult male brain, nucleus ambiguus (NA) that includes glottal and laryngeal motor ne ...
... laevis. (a) The ex vivo brain (Figure 1a) now viewed from the side and illustrating subdivisions (hindbrain, midbrain, and forebrain) that include neural circuits participating in initiation of vocal patterns. In an adult male brain, nucleus ambiguus (NA) that includes glottal and laryngeal motor ne ...
Probing forebrain to hindbrain circuit functions in Xenopus
... laevis. (a) The ex vivo brain (Figure 1a) now viewed from the side and illustrating subdivisions (hindbrain, midbrain, and forebrain) that include neural circuits participating in initiation of vocal patterns. In an adult male brain, nucleus ambiguus (NA) that includes glottal and laryngeal motor ne ...
... laevis. (a) The ex vivo brain (Figure 1a) now viewed from the side and illustrating subdivisions (hindbrain, midbrain, and forebrain) that include neural circuits participating in initiation of vocal patterns. In an adult male brain, nucleus ambiguus (NA) that includes glottal and laryngeal motor ne ...
Probing forebrain to hindbrain circuit functions in
... F I G U R E 3 Initiation and production of vocal motor patterns in X. laevis. (a) The ex vivo brain (Figure 1a) now viewed from the side and illustrating subdivisions (hindbrain, midbrain, and forebrain) that include neural circuits participating in initiation of vocal patterns. In an adult male bra ...
... F I G U R E 3 Initiation and production of vocal motor patterns in X. laevis. (a) The ex vivo brain (Figure 1a) now viewed from the side and illustrating subdivisions (hindbrain, midbrain, and forebrain) that include neural circuits participating in initiation of vocal patterns. In an adult male bra ...
Genetically identified spinal interneurons integrating tactile afferents
... turn, is used to guide behaviors by adjusting descending motor commands. In parallel to the perception of tactile signals generated at the cortical level, tactile signals are also integrated at the level of the spinal cord. That is, in addition to sending projections that travel rostrally up the dor ...
... turn, is used to guide behaviors by adjusting descending motor commands. In parallel to the perception of tactile signals generated at the cortical level, tactile signals are also integrated at the level of the spinal cord. That is, in addition to sending projections that travel rostrally up the dor ...
Sympathetic Division (cont)
... Splanchnic nerves are preganglionic fibers that pass through chain ganglia to synapse in collateral ganglia located in the abdominopelvic cavity. Although splanchnic nerves are bilateral, they serve single ganglia. The ganglia are named for the nearby artery with which they are associated. ...
... Splanchnic nerves are preganglionic fibers that pass through chain ganglia to synapse in collateral ganglia located in the abdominopelvic cavity. Although splanchnic nerves are bilateral, they serve single ganglia. The ganglia are named for the nearby artery with which they are associated. ...
GFR - ISpatula
... • The sympathetic nervous system also stimulates the reninangiotensin mechanism. • Sympathetic stimulation causes reduction in urine out put and permits greater blood flow to other vital organs. • Under moderate sympathetic stimulation both afferent and efferent arterioles constricts to same degree ...
... • The sympathetic nervous system also stimulates the reninangiotensin mechanism. • Sympathetic stimulation causes reduction in urine out put and permits greater blood flow to other vital organs. • Under moderate sympathetic stimulation both afferent and efferent arterioles constricts to same degree ...
• 1 1) The nonspecific ascending pathways ______. A) are
... ________. A) gyri B) sulci C) fissures D) ganglia Answer: A 26 26) The frontal lobe is separated from the temporal lobe by the ________. A) longitudinal fissure B) lateral sulcus C) central sulcus D) cranial fossa Answer: B 27 27) Brodmannʹs numbering refers to ________. A) molecular weight of types ...
... ________. A) gyri B) sulci C) fissures D) ganglia Answer: A 26 26) The frontal lobe is separated from the temporal lobe by the ________. A) longitudinal fissure B) lateral sulcus C) central sulcus D) cranial fossa Answer: B 27 27) Brodmannʹs numbering refers to ________. A) molecular weight of types ...
Pain and the Neuromatrix in the Brain
... inputs and by cognitive events, such as psychological stress. It may also occur because stressors, physical as well as psychological, act on stress-regulation systems, which may produce lesions of muscle, bone, and nerve tissue, thereby contributing to the neurosignature patterns that give rise to c ...
... inputs and by cognitive events, such as psychological stress. It may also occur because stressors, physical as well as psychological, act on stress-regulation systems, which may produce lesions of muscle, bone, and nerve tissue, thereby contributing to the neurosignature patterns that give rise to c ...
The Functional Organization of Perception and Movement
... ascending axons and axons descending from the brain stem and neocortex that innervate spinal interneurons and motor neurons. The ventral columns also include ascending and descending axons. The ascending somatic sensory axons in the lateral and ventral columns constitute parallel pathways that conve ...
... ascending axons and axons descending from the brain stem and neocortex that innervate spinal interneurons and motor neurons. The ventral columns also include ascending and descending axons. The ascending somatic sensory axons in the lateral and ventral columns constitute parallel pathways that conve ...
The Special Senses
... of the middle ears ossicles (malleus, Incus, stapes) , and differential vibrating surfaces of the eardrum and the inner ears oval window . •Stapes movement displaces the oval window and subsequently the basilar membrane of the inner ears cochlea , generating frequencydependent traveling waves in the ...
... of the middle ears ossicles (malleus, Incus, stapes) , and differential vibrating surfaces of the eardrum and the inner ears oval window . •Stapes movement displaces the oval window and subsequently the basilar membrane of the inner ears cochlea , generating frequencydependent traveling waves in the ...
The affective and cognitive processing of touch, oral texture, and
... glabrous skin of the hand revealed activation in the midorbitofrontal cortex (see Fig. 2) (McCabe et al., 2008). The implication is that the orbitofrontal cortex may be especially activated in relation to CT afferents vs. afferents from the glabrous skin. (The activation of the orbitofrontal cortex ...
... glabrous skin of the hand revealed activation in the midorbitofrontal cortex (see Fig. 2) (McCabe et al., 2008). The implication is that the orbitofrontal cortex may be especially activated in relation to CT afferents vs. afferents from the glabrous skin. (The activation of the orbitofrontal cortex ...
Spindle-Like Thalamocortical Synchronization in a Rat Brain Slice
... cortical afferents caused by thalamocortical firing occurring after excitation of thalamic neurons by corticothalamic inputs. Accordingly, kynurenic acid application to VB abolished this late response without influencing the antidromic or the initial postsynaptic excitatory field potential. In addit ...
... cortical afferents caused by thalamocortical firing occurring after excitation of thalamic neurons by corticothalamic inputs. Accordingly, kynurenic acid application to VB abolished this late response without influencing the antidromic or the initial postsynaptic excitatory field potential. In addit ...
Biomechanical and neurophysiological mechanisms related to
... stand in a stable manner when receptors of the ankle muscles are the only source of information about postural sway (Fitzpatrick et al., 1994; Fitzpatrick et al., 1992a). The soleus and the gastrocnemius have traditionally been considered the source of muscle proprioceptive information signalling ch ...
... stand in a stable manner when receptors of the ankle muscles are the only source of information about postural sway (Fitzpatrick et al., 1994; Fitzpatrick et al., 1992a). The soleus and the gastrocnemius have traditionally been considered the source of muscle proprioceptive information signalling ch ...
The Brain - Personal
... • Site of conscious mind: awareness, sensory perception, voluntary motor initiation, communication, memory storage, understanding • Each hemisphere connects to contralateral side of the body • There is lateralization of cortical function in the hemispheres ...
... • Site of conscious mind: awareness, sensory perception, voluntary motor initiation, communication, memory storage, understanding • Each hemisphere connects to contralateral side of the body • There is lateralization of cortical function in the hemispheres ...
Lecture #11 Brain and processing
... An individual can feel pain in an uninjured part of the body when pain actually originates at another location Strong visceral pain Sensations arriving at segment of spinal cord can stimulate interneurons that are part of spinothalamic pathway Activity in interneurons leads to stimulation of ...
... An individual can feel pain in an uninjured part of the body when pain actually originates at another location Strong visceral pain Sensations arriving at segment of spinal cord can stimulate interneurons that are part of spinothalamic pathway Activity in interneurons leads to stimulation of ...
7 Anatomy and Function of the Normal Rectum and Anus
... of the external sphincter, terminating in the perineal body [9] and in the perianal skin [10]. This complex network of coattails knits the mass of the sphincters to the perineum, holds the canal firmly in its grasp, tethers the mucosa and skin above and below the pectinate line to the circular muscl ...
... of the external sphincter, terminating in the perineal body [9] and in the perianal skin [10]. This complex network of coattails knits the mass of the sphincters to the perineum, holds the canal firmly in its grasp, tethers the mucosa and skin above and below the pectinate line to the circular muscl ...
Microneurography
![](https://commons.wikimedia.org/wiki/Special:FilePath/Microneurography,_experimental_setup,_schematic.jpg?width=300)
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.