Study Guide
... Chapter 11: Autonomic Nervous System I. Comparison of Somatic and Autonomic Nervous Systems 1. Know what types of sensations the SNS and ANS are associated with. II. Structure of Autonomic Nervous System 1. Be able to differentiate between sympathetic and parasympathetic activities. III. Function of ...
... Chapter 11: Autonomic Nervous System I. Comparison of Somatic and Autonomic Nervous Systems 1. Know what types of sensations the SNS and ANS are associated with. II. Structure of Autonomic Nervous System 1. Be able to differentiate between sympathetic and parasympathetic activities. III. Function of ...
NEURO PresentationWORKING students B
... mostly from muscles spindle but also from Golgi tendon organs, tactile, and joint receptors • apprises the brain of the momentary status of muscle contraction, muscle tension and limb position and forces acting on the body surface – ventral spinocerebellar tract - signals from anterior horn, and int ...
... mostly from muscles spindle but also from Golgi tendon organs, tactile, and joint receptors • apprises the brain of the momentary status of muscle contraction, muscle tension and limb position and forces acting on the body surface – ventral spinocerebellar tract - signals from anterior horn, and int ...
PowerPoint 演示文稿 - Shandong University
... Golgi tendon organs help ensure smooth onset and termination of muscle contraction Particularly important in activities involving rapid switching between flexion and extension such as in running ...
... Golgi tendon organs help ensure smooth onset and termination of muscle contraction Particularly important in activities involving rapid switching between flexion and extension such as in running ...
Control of Movement
... HD is caused by degeneration of the caudate nucleus and putamen Cell loss involves GABA-secreting axons that innervate the external division of the globus pallidus (GPe) The GPe cells increase their activity, which inhibits the activity of the subthalamic nucleus, which reduces the activity level of ...
... HD is caused by degeneration of the caudate nucleus and putamen Cell loss involves GABA-secreting axons that innervate the external division of the globus pallidus (GPe) The GPe cells increase their activity, which inhibits the activity of the subthalamic nucleus, which reduces the activity level of ...
Reticular formation,sleep and wakefulness
... active sleep early in life was shown to result in behavioral problems, permanent sleep disruption, decreased brain mass. ...
... active sleep early in life was shown to result in behavioral problems, permanent sleep disruption, decreased brain mass. ...
phys chapter 56 [10-19
... o In person with cerebellum destroyed, cerebrum can learn to prevent overshoot, but often overshoots in opposite direction (oscillation; action tremor; intention tremor) o Most rapid movements of body occur so rapidly, not possible to receive feedback info either from periphery to cerebellum or from ...
... o In person with cerebellum destroyed, cerebrum can learn to prevent overshoot, but often overshoots in opposite direction (oscillation; action tremor; intention tremor) o Most rapid movements of body occur so rapidly, not possible to receive feedback info either from periphery to cerebellum or from ...
A proposed common neural mechanism for categorization and
... the same location in visual space, the RF of the neuron under study, so even if the animals were planning an eye movement to the stimulus, that movement would always be to the same location, and thus should not cause differences in neuronal firing. Using this task, we found that LIP neurons had dire ...
... the same location in visual space, the RF of the neuron under study, so even if the animals were planning an eye movement to the stimulus, that movement would always be to the same location, and thus should not cause differences in neuronal firing. Using this task, we found that LIP neurons had dire ...
Slide 1
... • Several models have been proposed to account for rhythmic jaw movements and sensory input interactions with proposed rhythm generators. • These reflexes perform useful functions when the body is in movement and during chewing but their characteristics change during the two situations. ...
... • Several models have been proposed to account for rhythmic jaw movements and sensory input interactions with proposed rhythm generators. • These reflexes perform useful functions when the body is in movement and during chewing but their characteristics change during the two situations. ...
MotorIntroV2
... Voluntary movements are organized by motor programs • Translate goal into action – Formation of a movement representation, or motor program ...
... Voluntary movements are organized by motor programs • Translate goal into action – Formation of a movement representation, or motor program ...
The NERVOUS SYSTEM
... relay to CNS Somatic sensory receptors External receptors: touch, temp, pressure, sight, etc. Proprioceptors: monitor position and movement ...
... relay to CNS Somatic sensory receptors External receptors: touch, temp, pressure, sight, etc. Proprioceptors: monitor position and movement ...
Chapter 12
... Function of Cerebellum Error Control Device - Monitor, Quality Control – Monitors outputs to muscles from motor cortex and sensory signals from receptors – Compares the efferent project plan with execution at motor action site – Considers related factors and makes adjustments ...
... Function of Cerebellum Error Control Device - Monitor, Quality Control – Monitors outputs to muscles from motor cortex and sensory signals from receptors – Compares the efferent project plan with execution at motor action site – Considers related factors and makes adjustments ...
sms7new
... Disarthria = slurred speech Nystagmus = eye drift followed by rapid corrections Hypermetria = overshoot when pointing to a target Intention tremor = oscillating limb when pointing Unilateral cerebellar damage: subjects alternates palm up – palm down ...
... Disarthria = slurred speech Nystagmus = eye drift followed by rapid corrections Hypermetria = overshoot when pointing to a target Intention tremor = oscillating limb when pointing Unilateral cerebellar damage: subjects alternates palm up – palm down ...
chapter 12 - cerebellum
... Function of Cerebellum Error Control Device - Monitor, Quality Control – Monitors outputs to muscles from motor cortex and sensory signals from receptors – Compares the efferent project plan with execution at motor action site – Considers related factors and makes adjustments ...
... Function of Cerebellum Error Control Device - Monitor, Quality Control – Monitors outputs to muscles from motor cortex and sensory signals from receptors – Compares the efferent project plan with execution at motor action site – Considers related factors and makes adjustments ...
Vestibular Signals of Posterior Parietal Cortex Neurons during
... et al.20), smooth pursuit activity was almost negligible at the velocities tested in our experiments (up to 20°/s; FIG. 2B). Under certain circumstances, the animals were tracking the fixation spot almost exclusively via head movements (FIG. 2C, D). In such case, a clear correlation between neuronal ...
... et al.20), smooth pursuit activity was almost negligible at the velocities tested in our experiments (up to 20°/s; FIG. 2B). Under certain circumstances, the animals were tracking the fixation spot almost exclusively via head movements (FIG. 2C, D). In such case, a clear correlation between neuronal ...
Consciousness & Its Variants
... Sensations can be strange Strange details are accepted without question Images are often difficult to remember ...
... Sensations can be strange Strange details are accepted without question Images are often difficult to remember ...
L19-Physiology of the Proprioceptors in Balance
... is an encapsulated sensory receptor About 10 to 15 muscle fibers are usually connected to each Golgi tendon organ is stimulated when this small bundle of muscle fibers is "tensed" by contracting or stretching the muscle. ...
... is an encapsulated sensory receptor About 10 to 15 muscle fibers are usually connected to each Golgi tendon organ is stimulated when this small bundle of muscle fibers is "tensed" by contracting or stretching the muscle. ...
Golgi Tendon Reflux
... The stretch reflex operates as a feedback mechanism to control muscle length by causing muscle contraction. In contrast, the tendon reflex operates as a feedback mechanism to control muscle tension by causing muscle relaxation before muscle force becomes so great that tendons might be torn. Althou ...
... The stretch reflex operates as a feedback mechanism to control muscle length by causing muscle contraction. In contrast, the tendon reflex operates as a feedback mechanism to control muscle tension by causing muscle relaxation before muscle force becomes so great that tendons might be torn. Althou ...
Peripheral part of the vestibular system
... Focus on the horizontal or on a distant, stationary object. Don't read. Keep your head still, while resting against a seat back. Don't smoke or sit near smokers. Avoid spicy and greasy foods and alcohol. Don't overeat. Take an over-the-counter antihistamine, such as meclizine (Antivert), or one cont ...
... Focus on the horizontal or on a distant, stationary object. Don't read. Keep your head still, while resting against a seat back. Don't smoke or sit near smokers. Avoid spicy and greasy foods and alcohol. Don't overeat. Take an over-the-counter antihistamine, such as meclizine (Antivert), or one cont ...
29.4 Central and Peripheral Nervous Systems
... hand. Similarly, the left side of your brain controls the muscles that kick your right leg. When the spinal cord brings a signal from the body, the signal crosses over to the opposite hemisphere in the corpus callosum. The corpus callosum is a thick band of nerves that connects the two hemispheres. ...
... hand. Similarly, the left side of your brain controls the muscles that kick your right leg. When the spinal cord brings a signal from the body, the signal crosses over to the opposite hemisphere in the corpus callosum. The corpus callosum is a thick band of nerves that connects the two hemispheres. ...
Dr. Cam Perkins - BIOL 2210
... • stimulation of receptor causes local change in its receptor potential • a graded electrical current is generated that reflects intensity of stimulation • if receptor is part of a neuron, the membrane potential may generate an action potential • if receptor is not part of a neuron, the receptor pot ...
... • stimulation of receptor causes local change in its receptor potential • a graded electrical current is generated that reflects intensity of stimulation • if receptor is part of a neuron, the membrane potential may generate an action potential • if receptor is not part of a neuron, the receptor pot ...
The Cerebrum
... from, and sends motor commands to, the opposite side of the body » Left hemisphere controls right side of body » Right hemisphere controls left side of body ...
... from, and sends motor commands to, the opposite side of the body » Left hemisphere controls right side of body » Right hemisphere controls left side of body ...
PPRF lesions at the level of abducens
... paralysis of saccades and pursuit, but the eyes can be driven to the side of the ipsilateral gaze palsy with vestibular stimulation by the oculocephalic reflex and/or cold calorics ...
... paralysis of saccades and pursuit, but the eyes can be driven to the side of the ipsilateral gaze palsy with vestibular stimulation by the oculocephalic reflex and/or cold calorics ...
Horizontal Gaze Palsy
... paralysis of saccades and pursuit, but the eyes can be driven to the side of the ipsilateral gaze palsy with vestibular stimulation by the oculocephalic reflex and/or cold calorics ...
... paralysis of saccades and pursuit, but the eyes can be driven to the side of the ipsilateral gaze palsy with vestibular stimulation by the oculocephalic reflex and/or cold calorics ...
Neuroscience in space
Space neuroscience is the scientific study of the central nervous system (CNS) functions during spaceflight. Living systems can integrate the inputs from the senses to navigate in their environment and to coordinate posture, locomotion, and eye movements. Gravity has a fundamental role in controlling these functions. In weightlessness during spaceflight, integrating the sensory inputs and coordinating motor responses is harder to do because gravity is no longer sensed during free-fall. For example, the otolith organs of the vestibular system no longer signal head tilt relative to gravity when standing. However, they can still sense head translation during body motion. Ambiguities and changes in how the gravitational input is processed can lead to potential errors in perception, which affects spatial orientation and mental representation. Dysfunctions of the vestibular system are common during and immediately after spaceflight, such as space motion sickness in orbit and balance disorders after return to Earth.Adaptation to weightlessness involves not just the Sensory-motor coupling functions, but some autonomic nervous system functions as well. Sleep disorders and orthostatic intolerance are also common during and after spaceflight. There is no hydrostatic pressure in a weightless environment. As a result, the redistribution of body fluids toward the upper body causes a decrease in leg volume, which may affect muscle viscosity and compliance. An increase in intracranial pressure may also be responsible for a decrease in near visual acuity. In addition, muscle mass and strength both decrease as a result of the reduced loading in weightlessness. Moreover, approximately 70% of astronauts experience space motion sickness to some degree during the first days. The drugs commonly used to combat motion sickness, such as scopolamine and promethazine, have soporific effects. These factors can lead to chronic fatigue. The challenge of integrative space medicine and physiology is to investigate the adaptation of the human body to spaceflight as a whole, and not just as the sum of body parts because all body functions are connected and interact with each other.