ASCENDING WHITE MATTER TRACTS
... Crude touch and pressure information Poorly localized and nondiscriminative ...
... Crude touch and pressure information Poorly localized and nondiscriminative ...
Chapter 17
... sensory neurons convey info from autonomic sensory receptors, located primarily in viserca, to the CNS motor neurons conduct nerve impulses to smooth muscle, cardiac muscle, glands and adipose tissue. Motor portion consists of 2 branches: sympathetic division & parasympathetic division ...
... sensory neurons convey info from autonomic sensory receptors, located primarily in viserca, to the CNS motor neurons conduct nerve impulses to smooth muscle, cardiac muscle, glands and adipose tissue. Motor portion consists of 2 branches: sympathetic division & parasympathetic division ...
Nervous System
... Dendrite: Extends from the cell body and receives nerve impulses from other neurons. Axon: An extension of the cell body that transmits nerve impulses to other cells. Myelin Sheath: Outer layer of the axon that serves as an insulator for the axon. There are gaps on the myelin sheath that allow the e ...
... Dendrite: Extends from the cell body and receives nerve impulses from other neurons. Axon: An extension of the cell body that transmits nerve impulses to other cells. Myelin Sheath: Outer layer of the axon that serves as an insulator for the axon. There are gaps on the myelin sheath that allow the e ...
Sensory Receptors
... – Lamellar (Pacinian) corpuscles—deep pressure and vibration – Bulbous corpuscles (Ruffini endings)—deep continuous pressure – Muscle spindles—muscle stretch – Tendon organs—stretch in tendons – Joint kinesthetic receptors—joint position and ...
... – Lamellar (Pacinian) corpuscles—deep pressure and vibration – Bulbous corpuscles (Ruffini endings)—deep continuous pressure – Muscle spindles—muscle stretch – Tendon organs—stretch in tendons – Joint kinesthetic receptors—joint position and ...
The Nervous System
... A. Taste buds on your tongue are the major chemical sensory receptors for taste B. 10,000 taste buds in your mouth C. In order to taste something, the food must be dissolved in ______________, therefore the nervous system triggers salivation when it is time to eat D. The solution of saliva and food ...
... A. Taste buds on your tongue are the major chemical sensory receptors for taste B. 10,000 taste buds in your mouth C. In order to taste something, the food must be dissolved in ______________, therefore the nervous system triggers salivation when it is time to eat D. The solution of saliva and food ...
Document
... Visceral Afferents and Referred Pain Referred Pain: • Pain originating in a visceral structure perceived as being from an area of skin innervated by the same segmental level as the visceral afferent • Results from convergence of somatic & visceral afferents on the same segmental level of the spinal ...
... Visceral Afferents and Referred Pain Referred Pain: • Pain originating in a visceral structure perceived as being from an area of skin innervated by the same segmental level as the visceral afferent • Results from convergence of somatic & visceral afferents on the same segmental level of the spinal ...
Auditory Nerve - Neurobiology of Hearing
... And now, we can complete the near 80-year old diagram by Lorente de Nó on the axons in the inner ear that are not attached to cell bodies of the spiral ganglion. These turn out to be the efferent axons, that arise in the brainstem—one set called the lateral efferents that terminate on ANFs under th ...
... And now, we can complete the near 80-year old diagram by Lorente de Nó on the axons in the inner ear that are not attached to cell bodies of the spiral ganglion. These turn out to be the efferent axons, that arise in the brainstem—one set called the lateral efferents that terminate on ANFs under th ...
Somatic and Special Senses
... Types of Receptors Chemoreceptors – stimulated by changes in the chemical concentration of substances Pain receptors - … by tissue damage Thermoreceptors - … by changes in temp. Mechanoreceptors - … by changes in pressure or movement Photoreceptors - … by light energy ...
... Types of Receptors Chemoreceptors – stimulated by changes in the chemical concentration of substances Pain receptors - … by tissue damage Thermoreceptors - … by changes in temp. Mechanoreceptors - … by changes in pressure or movement Photoreceptors - … by light energy ...
Part 1 - Kirkwood Community College
... understand many of the other thoughts/decisions you make. • We will look at the parts of the neurons, their functions, and how neurons interact. • The story will cycle up in complexity and we will draw it on an 11x17 piece of paper. ...
... understand many of the other thoughts/decisions you make. • We will look at the parts of the neurons, their functions, and how neurons interact. • The story will cycle up in complexity and we will draw it on an 11x17 piece of paper. ...
nervous system
... a.) Sensory neurons: carry impulses from the sense organs to the spinal cord and brain b.) Motor neurons: carry impulses from the brain and spinal cord to muscles and glands c.) Interneurons: connect sensory and motor neurons and carry impulses between them 3. Neuron Parts and Function a.) Cell Body ...
... a.) Sensory neurons: carry impulses from the sense organs to the spinal cord and brain b.) Motor neurons: carry impulses from the brain and spinal cord to muscles and glands c.) Interneurons: connect sensory and motor neurons and carry impulses between them 3. Neuron Parts and Function a.) Cell Body ...
Nervous System
... Homeostasis - The relatively constant state of the internal environment of the body that is maintained by adaptive responses. Specific control and feedback mechanisms are responsible for adjusting body systems to maintain this state. Sense organs – specialized cells that can detect environmental cha ...
... Homeostasis - The relatively constant state of the internal environment of the body that is maintained by adaptive responses. Specific control and feedback mechanisms are responsible for adjusting body systems to maintain this state. Sense organs – specialized cells that can detect environmental cha ...
Neuron Physiology Notes
... potential of (-70 mv) 2.) Neuron is stimulated by the influx of a neurotransmitters that causes sodium channels to open. Sodium moves inward causing neuron to depolarize. (-62mv) 3.) Threshold is reached when enough sodium enters the neuron to change the potential to (-55mv) which causes “trigger zo ...
... potential of (-70 mv) 2.) Neuron is stimulated by the influx of a neurotransmitters that causes sodium channels to open. Sodium moves inward causing neuron to depolarize. (-62mv) 3.) Threshold is reached when enough sodium enters the neuron to change the potential to (-55mv) which causes “trigger zo ...
II. ORGANIZATION OF THE HUMAN NERVOUS
... sensory organ. Sensory receptors detect pressure, pain, heat, cold. 2. Smell - Response to a _chemical_____ stimulus. Sensory receptor cells are bathed in mucus and respond to different chemicals. 3. Taste - Response to a _chemical____stimulus. Sensory receptors called _taste buds____ are located on ...
... sensory organ. Sensory receptors detect pressure, pain, heat, cold. 2. Smell - Response to a _chemical_____ stimulus. Sensory receptor cells are bathed in mucus and respond to different chemicals. 3. Taste - Response to a _chemical____stimulus. Sensory receptors called _taste buds____ are located on ...
The autonomic nervous system
... - In the sympathetic and parasympathetic nervous system, efferent nerve signals are carried from the central nervous system to their targets by a system of two neurons. - The axons of preganglionic parasympathetic neurons are usually long, extending from the CNS into a ganglion that is either very c ...
... - In the sympathetic and parasympathetic nervous system, efferent nerve signals are carried from the central nervous system to their targets by a system of two neurons. - The axons of preganglionic parasympathetic neurons are usually long, extending from the CNS into a ganglion that is either very c ...
4-nmes
... Electrical stimulation of the muscle causes increase venous and lymphatic return, alter cell membrane permeability, these causes reduction of edema. The treatment is most effective if the current is applied by the method, ...
... Electrical stimulation of the muscle causes increase venous and lymphatic return, alter cell membrane permeability, these causes reduction of edema. The treatment is most effective if the current is applied by the method, ...
Nervous System - Buck Mountain Central School
... between sections of myelin sheath along the axon. Nerve impulses jump from one node to another. Thereby speeding up movements of impulses. Move much faster along myelinated than non. Speed is also affected by the diameter of an axon. Larger means faster. • Neurilemma – delicate membrane that surroun ...
... between sections of myelin sheath along the axon. Nerve impulses jump from one node to another. Thereby speeding up movements of impulses. Move much faster along myelinated than non. Speed is also affected by the diameter of an axon. Larger means faster. • Neurilemma – delicate membrane that surroun ...
The Cerebellum
... nuclei and reticular formation → vestibulospinal tract and reticulospinal tract → motor neurons of anterior horn Intermediate zone projects to the interposed nuclei ...
... nuclei and reticular formation → vestibulospinal tract and reticulospinal tract → motor neurons of anterior horn Intermediate zone projects to the interposed nuclei ...
Skeletal System
... stretch receptors that are ideal for measuring acceleration and rapid movement of the joints Ruffini corpuscles are slowly adapting stretch receptors that are ideal for measuring the positions of non-moving joints and the stretch of joints that ...
... stretch receptors that are ideal for measuring acceleration and rapid movement of the joints Ruffini corpuscles are slowly adapting stretch receptors that are ideal for measuring the positions of non-moving joints and the stretch of joints that ...
Neurones & the Action Potential
... Write down anything you can remember from GCSE about the nervous system: Hints.. What are some of it’s roles? What are the structures involved in it? http://www.teachers.tv/video/21091 ...
... Write down anything you can remember from GCSE about the nervous system: Hints.. What are some of it’s roles? What are the structures involved in it? http://www.teachers.tv/video/21091 ...
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.