The supraspinal control of movements
... • Mainly extensors (“antigravity muscles”) are affected • Important in maintaining and controlling the posture and muscle tone ...
... • Mainly extensors (“antigravity muscles”) are affected • Important in maintaining and controlling the posture and muscle tone ...
Anatomy
... o Cranial nerve 2 (optic) connects directly to the thalamus o Other cranial nerves send fibers to the thalamus from lower nuclei Different uses of sensory information o Sensory impulses are routed to the cortex for conscious sensation o Impulses also sent to reflex centers such as the cerebellum and ...
... o Cranial nerve 2 (optic) connects directly to the thalamus o Other cranial nerves send fibers to the thalamus from lower nuclei Different uses of sensory information o Sensory impulses are routed to the cortex for conscious sensation o Impulses also sent to reflex centers such as the cerebellum and ...
Nervous System Lecture- Part II
... Nerves and ganglia Nerves—bundles of peripheral axons Ganglia—clusters of peripheral neuronal cell bodies Motor endings—axon terminals of motor neurons Innervate effectors (muscle fibers and glands) Cranial Nerves Attach to the brain and pass through foramina of the skull Numbered from I–XII Cranial ...
... Nerves and ganglia Nerves—bundles of peripheral axons Ganglia—clusters of peripheral neuronal cell bodies Motor endings—axon terminals of motor neurons Innervate effectors (muscle fibers and glands) Cranial Nerves Attach to the brain and pass through foramina of the skull Numbered from I–XII Cranial ...
File
... • The movement of the electrical impulse involves the movement of ions (charged particles) ...
... • The movement of the electrical impulse involves the movement of ions (charged particles) ...
Lecture 1 (Neuroscience History)
... He saw the effects of brain and spinal injuries. By poking on the brain he noticed that the front was soft and back was hard, and concluded that the front dealt with memories and back dealt with movement. He dissected sheep brains and noted they had hollow cavities filled with fluid. He proposed tha ...
... He saw the effects of brain and spinal injuries. By poking on the brain he noticed that the front was soft and back was hard, and concluded that the front dealt with memories and back dealt with movement. He dissected sheep brains and noted they had hollow cavities filled with fluid. He proposed tha ...
In children
... • Weakness, tiredness, weight loss, nausea, intermittent vomiting, abdominal pain, general malaise, muscle cramps, and symptoms suggestive of postural hypotension • Psychiatric symptoms may occur in longstanding cases and include memory impairment, depression, and psychosis. • Patients may be inappr ...
... • Weakness, tiredness, weight loss, nausea, intermittent vomiting, abdominal pain, general malaise, muscle cramps, and symptoms suggestive of postural hypotension • Psychiatric symptoms may occur in longstanding cases and include memory impairment, depression, and psychosis. • Patients may be inappr ...
MULTIPLE SCLEROSIS (MS)
... infratentorial and corpus callosal lesions: (3) gadolinium enhancing lesions. Although none of the tests described above are specific for the diagnosis of MS, one or several abnormal results along with the clinical features can help in reaching an accurate diagnosis. Also, diagnostic studies should ...
... infratentorial and corpus callosal lesions: (3) gadolinium enhancing lesions. Although none of the tests described above are specific for the diagnosis of MS, one or several abnormal results along with the clinical features can help in reaching an accurate diagnosis. Also, diagnostic studies should ...
CNS Anatomy 2 **You need to study the slide hand in hand with this
... -some sensory fibres in the dorsal root don’t form synapses in spinal cord but they ascend upward to reach the brain(medulla ,pons,mid brain, thalamus) -Every spinal nerve has dorsal root ganglion but only the cranial nerves that have sensory innervations have sensory ganglion like trigeminal but hy ...
... -some sensory fibres in the dorsal root don’t form synapses in spinal cord but they ascend upward to reach the brain(medulla ,pons,mid brain, thalamus) -Every spinal nerve has dorsal root ganglion but only the cranial nerves that have sensory innervations have sensory ganglion like trigeminal but hy ...
Nervous System Test File
... Nervous System Test Multiple Choice/True/False: 1. The nervous system exhibits all of these functions EXCEPT: a. monitoring change b. integrating impulses c. storing calcium d. effecting responses 2. The term “central nervous system” refers to the: a. autonomic nervous system b. brain, spinal cord a ...
... Nervous System Test Multiple Choice/True/False: 1. The nervous system exhibits all of these functions EXCEPT: a. monitoring change b. integrating impulses c. storing calcium d. effecting responses 2. The term “central nervous system” refers to the: a. autonomic nervous system b. brain, spinal cord a ...
CH 14 brain cranial nerves shortened for test 4 A and P 2016
... - this is the least understood area of brain research parietal lesions = unaware of objects even your own limbs or body temporal lesions =unable to recognize names of objects, or faces frontal lesions = personality disorders, socially inappropriate ...
... - this is the least understood area of brain research parietal lesions = unaware of objects even your own limbs or body temporal lesions =unable to recognize names of objects, or faces frontal lesions = personality disorders, socially inappropriate ...
5. Electrical Signals
... transmits nerve impulses between parts of the body) • Neurons: (a specialized cell transmitting nerve impulses) • Nerve cells: (cell which is part of the nervous system, neuron) • Spinal cord: (the cylindrical bundle of nerve fibres which is enclosed in the spine and connected to the brain, with whi ...
... transmits nerve impulses between parts of the body) • Neurons: (a specialized cell transmitting nerve impulses) • Nerve cells: (cell which is part of the nervous system, neuron) • Spinal cord: (the cylindrical bundle of nerve fibres which is enclosed in the spine and connected to the brain, with whi ...
Biology 3.5 Responding to Stimuli
... Causes of the disease In people with Parkinson’s disease it is found that the brain has reduces the normal amount of dopamine that it makes. The lack of dopamine neurotransmitter causes signalling problems in the body – some messages can’t be carried properly ...
... Causes of the disease In people with Parkinson’s disease it is found that the brain has reduces the normal amount of dopamine that it makes. The lack of dopamine neurotransmitter causes signalling problems in the body – some messages can’t be carried properly ...
Stimulus Response Time Lab
... Sensory neurons of the PNS carry information to the CNS. Signals from the brain are carried to motor neurons (PNS), which carry out responses by muscles. In this lab, you will be comparing the rate at which sensory neurons, working through the brain, can elicit responses via motor neurons. Purpose: ...
... Sensory neurons of the PNS carry information to the CNS. Signals from the brain are carried to motor neurons (PNS), which carry out responses by muscles. In this lab, you will be comparing the rate at which sensory neurons, working through the brain, can elicit responses via motor neurons. Purpose: ...
Chapter 13
... canal from end of the spinal cord, look like hair 31 spinal nerves leave at regular intervals where pairs of spinal nerves arise are spinal segments no segments within cord dividing gray & white matter ...
... canal from end of the spinal cord, look like hair 31 spinal nerves leave at regular intervals where pairs of spinal nerves arise are spinal segments no segments within cord dividing gray & white matter ...
Physiological bases of mental and physical work
... thought processes in the mind. This presumably results from some of the same capabilities of the prefrontal cortex that allow it to plan motor activities. The prefrontal association area is frequently described as important for elaboration of thoughts to store on a short-term basis “working memori ...
... thought processes in the mind. This presumably results from some of the same capabilities of the prefrontal cortex that allow it to plan motor activities. The prefrontal association area is frequently described as important for elaboration of thoughts to store on a short-term basis “working memori ...
What is RF diathermy?
... The outside of a 'resting' the nerve is charged positive. It is 'polarised'. If you add negative electrons to the outside they will neutralise the charge. This will cause that wave of depolarisation to wash down the nerve. The negative electrode should be attached as near as possible to a nerve, co ...
... The outside of a 'resting' the nerve is charged positive. It is 'polarised'. If you add negative electrons to the outside they will neutralise the charge. This will cause that wave of depolarisation to wash down the nerve. The negative electrode should be attached as near as possible to a nerve, co ...
Chapter 9—Sensory Systems. I. Sensory receptors receive stimuli
... iii. Cones contain the same retinal pigment as rods, but it is attached to other forms of opsin, which respond to blue, green, or red light wavelengths. 1. The brain interprets color according to how strongly each type of cone is stimulated. iv. When a photon of light strikes a visual pigment, it ca ...
... iii. Cones contain the same retinal pigment as rods, but it is attached to other forms of opsin, which respond to blue, green, or red light wavelengths. 1. The brain interprets color according to how strongly each type of cone is stimulated. iv. When a photon of light strikes a visual pigment, it ca ...
Prac T12 - studylib.net
... none of the above If resting membrane potential is –70 mV and the threshold is –60 mV, a membrane potential of –62 mV will: produce an action potential repolarize the membrane to –80 mV depolarize the membrane to 0 mV not produce an action potential At the site of an action potential, the membrane c ...
... none of the above If resting membrane potential is –70 mV and the threshold is –60 mV, a membrane potential of –62 mV will: produce an action potential repolarize the membrane to –80 mV depolarize the membrane to 0 mV not produce an action potential At the site of an action potential, the membrane c ...
Dizziness, Disequilibrium and Vertigo
... There may be associated with tinnitus, hearing loss, or facial nerve weakness. ...
... There may be associated with tinnitus, hearing loss, or facial nerve weakness. ...
What is atrial fibrillation?
... The first patient I saw was a 45 years old man who was to be ablated for a Wolff–Parkinson– White syndrome (WPW), one of several disorders of the conduction system of the heart that are commonly referred to as pre-excitation syndromes. While the majority of individuals with WPW remain asymptomatic t ...
... The first patient I saw was a 45 years old man who was to be ablated for a Wolff–Parkinson– White syndrome (WPW), one of several disorders of the conduction system of the heart that are commonly referred to as pre-excitation syndromes. While the majority of individuals with WPW remain asymptomatic t ...
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.