
Disproportion of cerebral surface areas and volumes in
... crowns of gyri and least numerous in the depths of the sulci (Welker, 1990). The variable EA, defined as a measure of the extra surface area generated by the folding of the SM surface (see Fig. 1), may also be taken as an estimate of the surface area of the white matter cores of gyri, that is the ar ...
... crowns of gyri and least numerous in the depths of the sulci (Welker, 1990). The variable EA, defined as a measure of the extra surface area generated by the folding of the SM surface (see Fig. 1), may also be taken as an estimate of the surface area of the white matter cores of gyri, that is the ar ...
Neural correlates of action attribution in schizophrenia
... first scan of the time series. The estimates extracted from the rigid body transformation (described as three translations (x, y, z) and three rotations about the axes) were used to realign the images and to perform a mathematical adjustment (minimising the sum of the squares of differences in inten ...
... first scan of the time series. The estimates extracted from the rigid body transformation (described as three translations (x, y, z) and three rotations about the axes) were used to realign the images and to perform a mathematical adjustment (minimising the sum of the squares of differences in inten ...
ON-Q® Pain Relief System ON
... • ON-Q® is a brand of elastomeric pump that automatically delivers a continuous regulated flow of local anesthetic over multiple days. • It is completely portable. • The pump is connected to a catheter placed near a nerve for regional anesthesia and pain management. • The ON-Q® pump is indicated to ...
... • ON-Q® is a brand of elastomeric pump that automatically delivers a continuous regulated flow of local anesthetic over multiple days. • It is completely portable. • The pump is connected to a catheter placed near a nerve for regional anesthesia and pain management. • The ON-Q® pump is indicated to ...
Spinal Cord Injury - Deranged Physiology
... Changes associated with loss of reflex activity: Loss of somatic reflexes leads to loss of deep tendon reflexes and a flaccid paralysis of the affected limbs (lower limbs in paraplegics and upper and lower limbs in tetraplegics). Loss of reflex activity in viscera so that the bladder and bowel lose ...
... Changes associated with loss of reflex activity: Loss of somatic reflexes leads to loss of deep tendon reflexes and a flaccid paralysis of the affected limbs (lower limbs in paraplegics and upper and lower limbs in tetraplegics). Loss of reflex activity in viscera so that the bladder and bowel lose ...
Document
... A weight lifter is straining to lift a 200-kg barbell. Shortly after he lifts it to chest height, his muscles appear to relax and he drops the barbell. Which reflex has occurred? ...
... A weight lifter is straining to lift a 200-kg barbell. Shortly after he lifts it to chest height, his muscles appear to relax and he drops the barbell. Which reflex has occurred? ...
cranial nerves
... canal and rubbing them together softly. Glossopharyngeal Nerve (CN IX) receives sensory fibers from oropharynx and special sensory fibers of taste from the posterior one-third of the tongue; sends motor fibers to palate and is responsible for gag reflex. Vagus Nerve (CN X) sends motor fibers to pala ...
... canal and rubbing them together softly. Glossopharyngeal Nerve (CN IX) receives sensory fibers from oropharynx and special sensory fibers of taste from the posterior one-third of the tongue; sends motor fibers to palate and is responsible for gag reflex. Vagus Nerve (CN X) sends motor fibers to pala ...
Brain Stimulation via the Tongue: MedStar NRH Studies PoNS™ for
... available to patients. Recommendations are also made about: • R eturn to school, sports, and work • Accommodations for school or work, if appropriate • Recovery period follow-up • Further treatment if symptoms do not improve as expected The Concussion Clinic is available at outpatient centers t ...
... available to patients. Recommendations are also made about: • R eturn to school, sports, and work • Accommodations for school or work, if appropriate • Recovery period follow-up • Further treatment if symptoms do not improve as expected The Concussion Clinic is available at outpatient centers t ...
Repetitive Transcranial Magnetic Stimulation (rTMS) for the
... which happens hours after the trauma and can last for many years [6–9]. Neuropsychological aspects ...
... which happens hours after the trauma and can last for many years [6–9]. Neuropsychological aspects ...
General knowledge about nervous system
... Evolution of Gene Related to Brain's Growth • A gene that helps determine the size of the human brain has been under intense Darwinian pressure in the last few million years. • It has changed its structure 15 times since humans and chimps separated from their common ancestor. • Evolution has been p ...
... Evolution of Gene Related to Brain's Growth • A gene that helps determine the size of the human brain has been under intense Darwinian pressure in the last few million years. • It has changed its structure 15 times since humans and chimps separated from their common ancestor. • Evolution has been p ...
A Distinct Class of Antibodies May Be an Indicator of Gray Matter
... provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). ...
... provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). ...
Treatment injury case study
... Jeannie, a 41-year-old secretary, had an injury to her radial nerve during gynaecology surgery. Other than menorrhagia and medicated hypertension, Jeannie was generally well. Following an elective total laparoscopic hysterectomy the nurses noted that she had a reddened area on her upper arm. In the ...
... Jeannie, a 41-year-old secretary, had an injury to her radial nerve during gynaecology surgery. Other than menorrhagia and medicated hypertension, Jeannie was generally well. Following an elective total laparoscopic hysterectomy the nurses noted that she had a reddened area on her upper arm. In the ...
Reduced thalamic and pontine connectivity in Kleine–Levin
... usually occur twice a year with characteristic duration of about 3 weeks. This patient has a severe character of her hypersomnic periods, initially with seemingly comatose episodes when she sometimes has to be enterally nourished. Several electroencephalogram (EEG) examinations, however, demonstrate ...
... usually occur twice a year with characteristic duration of about 3 weeks. This patient has a severe character of her hypersomnic periods, initially with seemingly comatose episodes when she sometimes has to be enterally nourished. Several electroencephalogram (EEG) examinations, however, demonstrate ...
Deep transcranial magnetic stimulation add
... because of a delusional thought (saying that the magnetic coil was ‘pulling out his brain’), a second patient dropped out after two sessions because he was ‘unable to tolerate the treatment’, and a third patient dropped out after six sessions due to worsening psychotic symptoms (the patient became a ...
... because of a delusional thought (saying that the magnetic coil was ‘pulling out his brain’), a second patient dropped out after two sessions because he was ‘unable to tolerate the treatment’, and a third patient dropped out after six sessions due to worsening psychotic symptoms (the patient became a ...
Chapter 10 Neurology
... progressive inherited degenerative disease of the brain that begins in middle age tissue death and an area of necrosis from disruption or blockage of blood flow a portion of the brain that functions as part of both the endocrine and nervous systems sections or divisions of each hemisphere of the ...
... progressive inherited degenerative disease of the brain that begins in middle age tissue death and an area of necrosis from disruption or blockage of blood flow a portion of the brain that functions as part of both the endocrine and nervous systems sections or divisions of each hemisphere of the ...
Philip Buss - the IDeA Lab!
... 47). Due to the high demand for power, there was never any time to shut down and redesign the whole system. This is very similar to the two systems in the brain. Originally, there was only the dorsal stream. Then, due to the evolutionary benefits of having conscious perception, the ventral stream wa ...
... 47). Due to the high demand for power, there was never any time to shut down and redesign the whole system. This is very similar to the two systems in the brain. Originally, there was only the dorsal stream. Then, due to the evolutionary benefits of having conscious perception, the ventral stream wa ...
Vercise™ Deep Brain Stimulation System
... Brain Stimulation (DBS) Technology is unlike any other, having its roots in cochlear implant technology, which delivers accurate targeting and precise control of therapy to treat movement disorder symptoms and improve patient quality of life. How DBS Works The Vercise DBS System consists of a stimul ...
... Brain Stimulation (DBS) Technology is unlike any other, having its roots in cochlear implant technology, which delivers accurate targeting and precise control of therapy to treat movement disorder symptoms and improve patient quality of life. How DBS Works The Vercise DBS System consists of a stimul ...
Upgrade Nerve Reflexology Migraine. Is the Trigeminal
... The pure physical cranial physiology is well known and illustrated in all research. It is the combination between cranial blood vessels and the Trigeminal nerve endings on these vessels that causes the migraine attacks. Who are we to doubt these well-established facts? The question is: if we all kno ...
... The pure physical cranial physiology is well known and illustrated in all research. It is the combination between cranial blood vessels and the Trigeminal nerve endings on these vessels that causes the migraine attacks. Who are we to doubt these well-established facts? The question is: if we all kno ...
Neural and Voluntary Control of Breathing
... Neural Control of Breathing • This topic is still “unsettled” science // exact mechanism for setting the rhythm of respiration remains unknown • Currently, we understand there are three neural circuits (nuclei) within the brain stem which influence breathing – Dorsal respiratory group – Ventral res ...
... Neural Control of Breathing • This topic is still “unsettled” science // exact mechanism for setting the rhythm of respiration remains unknown • Currently, we understand there are three neural circuits (nuclei) within the brain stem which influence breathing – Dorsal respiratory group – Ventral res ...
Exam 1 4-23
... A 75-year-old Alzheimer’s patient hit the back of his head when he fell out of bed. The examining physician was concerned that bridging veins were torn as a result of this accident. Blood from torn bridging veins usually accumulates in the A. B. C. D. E. ...
... A 75-year-old Alzheimer’s patient hit the back of his head when he fell out of bed. The examining physician was concerned that bridging veins were torn as a result of this accident. Blood from torn bridging veins usually accumulates in the A. B. C. D. E. ...
Human Reflexes Introductory Reading and
... Reflex testing is an important diagnostic tool for assessing the condition of the nervous system. Distorted, exaggerated, or reflexes that are absent may indicate degeneration or pathology of portions of the nervous system, often before other signs are apparent. If the spinal cord is damaged, then r ...
... Reflex testing is an important diagnostic tool for assessing the condition of the nervous system. Distorted, exaggerated, or reflexes that are absent may indicate degeneration or pathology of portions of the nervous system, often before other signs are apparent. If the spinal cord is damaged, then r ...
Patient Machine Interface for the Control of Mechanical Ventilation
... the first mechanical ventilators. Since then, several types of ventilators and modes of ventilations have been proposed [3,9–12]. Mechanical ventilation is required when there are clinical or para-clinical signs that the patient cannot maintain an airway or adequate oxygenation or ventilation [13]. ...
... the first mechanical ventilators. Since then, several types of ventilators and modes of ventilations have been proposed [3,9–12]. Mechanical ventilation is required when there are clinical or para-clinical signs that the patient cannot maintain an airway or adequate oxygenation or ventilation [13]. ...
Figure 4.8 The human brain stem This composite structure extends
... • Lateral Corticospinal Tract – Originates in large pyramidal cells (precentral gyrus) – cross to the opposite side of the cord at the pyramidal decussation & terminate in the dorsal horn cells • Ventral Corticospinal Tract – Originates in the pyramidal cells (motor area of the cortex) Impulses rela ...
... • Lateral Corticospinal Tract – Originates in large pyramidal cells (precentral gyrus) – cross to the opposite side of the cord at the pyramidal decussation & terminate in the dorsal horn cells • Ventral Corticospinal Tract – Originates in the pyramidal cells (motor area of the cortex) Impulses rela ...
How your Eye Doctor Diagnoses Glaucoma
... National Eye Institute, about 3% of Americans have glaucoma. Glaucoma cannot be ruled out by self-diagnosis based on if a person has great vision or has never had to have glasses or because their eyes feel “ok”. Glaucoma is painless, does not typically affect vision until late in the disease, and do ...
... National Eye Institute, about 3% of Americans have glaucoma. Glaucoma cannot be ruled out by self-diagnosis based on if a person has great vision or has never had to have glasses or because their eyes feel “ok”. Glaucoma is painless, does not typically affect vision until late in the disease, and do ...
head and face trauma
... that supply SA and AV node, stomach and GI tract - pressure on nerve stimulates bardycardia iii Reticular activating system - level of arousal and responsible for specific motor movements ...
... that supply SA and AV node, stomach and GI tract - pressure on nerve stimulates bardycardia iii Reticular activating system - level of arousal and responsible for specific motor movements ...
Coma

In medicine, coma (from the Greek κῶμα koma, meaning ""deep sleep"") is a state of unconsciousness in which a person: cannot be awakened; fails to respond normally to painful stimuli, light, or sound; lacks a normal wake-sleep cycle; and does not initiate voluntary actions. A person in a state of coma is described as being comatose. Typically, a distinction is made in the medical community between a coma and a medically induced coma, the former is generally understood to be a result of circumstances beyond the control of the medical community, while the latter is generally understood to be a means by which medical professionals may allow a patient's injuries to heal in a controlled environment. A comatose person exhibits a complete absence of wakefulness and is unable to consciously feel, speak, hear, or move. For a patient to maintain consciousness, two important neurological components must function. The first is the cerebral cortex—the gray matter that forms the outer layer of the brain. The other is a structure located in the brainstem, called reticular activating system (RAS).Injury to either or both of these components is sufficient to cause a patient to experience a coma. The cerebral cortex is a group of tight, dense, ""gray matter"" composed of the nuclei of the neurons whose axons then form the ""white matter"", and is responsible for perception, relay of the sensory input (sensation) via the thalamic pathway, and many other neurological functions, including complex thinking.RAS, on the other hand, is a more primitive structure in the brainstem that is tightly in connection with reticular formation (RF). The RAS area of the brain has two tracts, the ascending and descending tract. Made up of a system of acetylcholine-producing neurons, the ascending track, or ascending reticular activating system (ARAS), works to arouse and wake up the brain, from the RF, through the thalamus, and then finally to the cerebral cortex. A failure in ARAS functioning may then lead to a coma.