Sensory Physiology
... Frequency of action potentials – stronger stimuli generate larger receptor potential, therefore a greater frequency of action potentials ...
... Frequency of action potentials – stronger stimuli generate larger receptor potential, therefore a greater frequency of action potentials ...
Nervous System Mega Matching Table
... fluid-filled cavity of the diencephalon glial cells that form the myelin sheath around axons in the CNS glial cells that form the myelin sheath around axons in the PNS glial cells that help produce and circulate CSF in the brain ventricles glial cells that help to form the blood-brain barrier glial ...
... fluid-filled cavity of the diencephalon glial cells that form the myelin sheath around axons in the CNS glial cells that form the myelin sheath around axons in the PNS glial cells that help produce and circulate CSF in the brain ventricles glial cells that help to form the blood-brain barrier glial ...
The NERVOUS SYSTEM
... •Every thought, action and emotion reflects its activity. •It signals the body through electrical impulses that communicate with the body cells. •Its signaling and responding abilities are highly specific and rapid. The Nervous System is capable of: 1. Sensory input – gathering information To moni ...
... •Every thought, action and emotion reflects its activity. •It signals the body through electrical impulses that communicate with the body cells. •Its signaling and responding abilities are highly specific and rapid. The Nervous System is capable of: 1. Sensory input – gathering information To moni ...
Chapter 6 - Sensory - Austin Community College
... oblongata with input from the limbic system and other regions of the cerebrum. The afferent component of the ANS consists of general visceral sensory neurons. Interoreceptors such as chemoreceptors (CO2 levels) and mechanoreceptors (degree of stretch of organs and vessels). Afferent signals are not ...
... oblongata with input from the limbic system and other regions of the cerebrum. The afferent component of the ANS consists of general visceral sensory neurons. Interoreceptors such as chemoreceptors (CO2 levels) and mechanoreceptors (degree of stretch of organs and vessels). Afferent signals are not ...
Rexed`s Lamina
... Free nerve endings (pain, cold, warmth) Muscle spindle Receptor level (sensory reception Joint and transmission kinesthetic to CNS) receptor ...
... Free nerve endings (pain, cold, warmth) Muscle spindle Receptor level (sensory reception Joint and transmission kinesthetic to CNS) receptor ...
Chapter 18 - Austin Community College
... • Focuses light rays onto the retina – Image is inverted and upside down on the retina – If eyeball is too long or too short corrective lenses are needed to bring image into focus on the retina ...
... • Focuses light rays onto the retina – Image is inverted and upside down on the retina – If eyeball is too long or too short corrective lenses are needed to bring image into focus on the retina ...
Chapter 17 Part A
... - outer cellular sheath or neurilemma (may play a role in nerve regeneration) - many layers of plasma membrane contain the lipid myelin - whitish, inner myelin sheath insulates & increases conduction - multiple sclerosis disease causes scars on sheath and motor abnormality - gaps between Schwann cel ...
... - outer cellular sheath or neurilemma (may play a role in nerve regeneration) - many layers of plasma membrane contain the lipid myelin - whitish, inner myelin sheath insulates & increases conduction - multiple sclerosis disease causes scars on sheath and motor abnormality - gaps between Schwann cel ...
2016-2017_1stSemester_Exam1_050117_final
... Complete the text below! 10 points. The neural regulation of different organs in the human body is accomplished by the…………….. ………………… system. Conservation of energy is achieved via the …………………………… ………… wing of the system whose central regulatory units are situated in the ………………... and the caudal par ...
... Complete the text below! 10 points. The neural regulation of different organs in the human body is accomplished by the…………….. ………………… system. Conservation of energy is achieved via the …………………………… ………… wing of the system whose central regulatory units are situated in the ………………... and the caudal par ...
7-4_DescendingPathways_HubaT
... extremities. And organise a full move from little parts. For example walking, or swimming. The vegetative tracts start from higher vegetative centres, and they are controlling mainly the smooth muscles of our organs. 4. The organization of the descending pathways: The muscle function information fro ...
... extremities. And organise a full move from little parts. For example walking, or swimming. The vegetative tracts start from higher vegetative centres, and they are controlling mainly the smooth muscles of our organs. 4. The organization of the descending pathways: The muscle function information fro ...
Foot Drop and the Common Peroneal Nerve
... Nerve, crosses from behind your knee, around the outside of your knee, to enter the muscles of the outside of your leg. This nerve gets compressed between the white covering of the muscles and the underlying bone, the fibula, in what is called the fibular tunnel. If your leg is stretched, your ankle ...
... Nerve, crosses from behind your knee, around the outside of your knee, to enter the muscles of the outside of your leg. This nerve gets compressed between the white covering of the muscles and the underlying bone, the fibula, in what is called the fibular tunnel. If your leg is stretched, your ankle ...
ANPS 019 Beneyto-Santonja 10-29
... Spinal Cord and Spinal Nerves Spinal Cord Circuitry 1. Peripheral receptors bring in sensory information from body to spinal cord – somatic from skin/muscle, visceral from organs 2. Sensory neuron enters dorsal part of spinal cord to synapse on gray matter neuron 3. Information integration by intern ...
... Spinal Cord and Spinal Nerves Spinal Cord Circuitry 1. Peripheral receptors bring in sensory information from body to spinal cord – somatic from skin/muscle, visceral from organs 2. Sensory neuron enters dorsal part of spinal cord to synapse on gray matter neuron 3. Information integration by intern ...
Conditions Page 5
... trauma to the neck can result in irritation or damage to the trigeminal nerve, which originates in the brain stem/upper spinal cord. Symptoms may not always show up immediately after an injury, but may develop months or years afterward if a misalignment if left untreated. In a scientific study condu ...
... trauma to the neck can result in irritation or damage to the trigeminal nerve, which originates in the brain stem/upper spinal cord. Symptoms may not always show up immediately after an injury, but may develop months or years afterward if a misalignment if left untreated. In a scientific study condu ...
Nervous System Notes
... Efferent division of ANS carries information to the autonomic or visceral effectors Sympathetic division: prepares the body to deal with immediate threats to the internal environment; produces fight-or-flight response Parasympathetic division: coordinates the body’s normal resting activities; ...
... Efferent division of ANS carries information to the autonomic or visceral effectors Sympathetic division: prepares the body to deal with immediate threats to the internal environment; produces fight-or-flight response Parasympathetic division: coordinates the body’s normal resting activities; ...
Cranial nerves III, IV,VI and Visual Pathway
... Motor for most of extraocular muscles. Also carries preganglionic parasympathetic fibers for pupillary constrictor and ciliary muscle. Has two nuclei: 1- Main occulomotor nucleus; Lies in the mid brain, at the level of superior colliculus 2- Accessory nucleus (EdingerWestphal nucleus); Lies dor ...
... Motor for most of extraocular muscles. Also carries preganglionic parasympathetic fibers for pupillary constrictor and ciliary muscle. Has two nuclei: 1- Main occulomotor nucleus; Lies in the mid brain, at the level of superior colliculus 2- Accessory nucleus (EdingerWestphal nucleus); Lies dor ...
Organization of the Nervous System and Motor unit BY
... Motor unit recruitment is a measure of how many motor neurons are activated in a particular muscle, and therefore is a measure of how many muscle fibers of that muscle are activated. The higher the recruitment the stronger the muscle contraction will be ...
... Motor unit recruitment is a measure of how many motor neurons are activated in a particular muscle, and therefore is a measure of how many muscle fibers of that muscle are activated. The higher the recruitment the stronger the muscle contraction will be ...
Guillain-Barre Syndrome
... Monitor Resp status closely (follow NIFs), up to 30% may req ventilatory support In severe cases, intrarterial monitoring may be necessary given the gisngifcant blood pressure fluctuations Neuropathic pain plagues most, often managed w/ Gabapentin or Carbamazepine ...
... Monitor Resp status closely (follow NIFs), up to 30% may req ventilatory support In severe cases, intrarterial monitoring may be necessary given the gisngifcant blood pressure fluctuations Neuropathic pain plagues most, often managed w/ Gabapentin or Carbamazepine ...
Percept
... experience come from smell. This is why, when we have a cold, most foods seem bland or tasteless. ...
... experience come from smell. This is why, when we have a cold, most foods seem bland or tasteless. ...
Nervous tissues
... There are three main types of neurons, which are classified according their function: Those that conduct impulses from the sensory organs to the central nervous system (brain and spinal cord) are called sensory (or afferent) neurons; those that conduct impulses from the central nervous system to the ...
... There are three main types of neurons, which are classified according their function: Those that conduct impulses from the sensory organs to the central nervous system (brain and spinal cord) are called sensory (or afferent) neurons; those that conduct impulses from the central nervous system to the ...
electrochemical impulse - Glebe
... o E.g. warm water = low frequency, hot water = high frequency 2. Different neurons have different thresholds o E.g. water at 40°C will cause one neuron to reach threshold level, but water at 60°C may cause two or more o Brain distinguishes between neural impulses Synaptic Transmission Neurons can ...
... o E.g. warm water = low frequency, hot water = high frequency 2. Different neurons have different thresholds o E.g. water at 40°C will cause one neuron to reach threshold level, but water at 60°C may cause two or more o Brain distinguishes between neural impulses Synaptic Transmission Neurons can ...
The Nervous System
... • The spinal cord has a fluid-filled central canal. The cord itself is protected by bony vertebrae. • The exterior cord is white matter, while the interior surface is gray matter. • The spinal cord connects the brain with the PNS. It consists of the 62 spinal nerves, which contain both sensory and ...
... • The spinal cord has a fluid-filled central canal. The cord itself is protected by bony vertebrae. • The exterior cord is white matter, while the interior surface is gray matter. • The spinal cord connects the brain with the PNS. It consists of the 62 spinal nerves, which contain both sensory and ...
somatosensation
... • The transduction by mechanoreceptors (sense of touch) involves “stretch-sensitive” ion (sodium) channels on the membrane of the touch receptors • A mechanical deformation of the skin opens the channels and sodium enters into the « nerve » terminal, inducing a depolarization, corresponding to a rec ...
... • The transduction by mechanoreceptors (sense of touch) involves “stretch-sensitive” ion (sodium) channels on the membrane of the touch receptors • A mechanical deformation of the skin opens the channels and sodium enters into the « nerve » terminal, inducing a depolarization, corresponding to a rec ...
Microneurography
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.