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 ...
Normal Skin - Toronto Dermatology Centre
... skin. This then allows germs into the body, causing infections. For example, when people with diabetes get a blister from new or illfitting shoes, they might not feel the pain because of nerve damage and can therefore neglect to treat the blister. Lack of treatment leads to an infection, and the hig ...
... skin. This then allows germs into the body, causing infections. For example, when people with diabetes get a blister from new or illfitting shoes, they might not feel the pain because of nerve damage and can therefore neglect to treat the blister. Lack of treatment leads to an infection, and the hig ...
Release of Acetylcholine: Signal at nerve terminal causes CA2+
... Therefore, the categories of neurotransmitters are classified according to the extent which all of the above criteria have been fulfilled. For example, acetylcholine is categorized as first division neurotransmitter while glu/ATP second division and TRH third division. The transmission of nerve alon ...
... Therefore, the categories of neurotransmitters are classified according to the extent which all of the above criteria have been fulfilled. For example, acetylcholine is categorized as first division neurotransmitter while glu/ATP second division and TRH third division. The transmission of nerve alon ...
Poster Session Abstract Booklet - The New York Academy of Sciences
... opportunities for an incredible array of therapies. The development of optogenetics introduced the possibility of targeting specific types of neurons with phenomenal potential for therapeutic applications. It also necessitates engineering new interfaces and technologies that we believe have the pote ...
... opportunities for an incredible array of therapies. The development of optogenetics introduced the possibility of targeting specific types of neurons with phenomenal potential for therapeutic applications. It also necessitates engineering new interfaces and technologies that we believe have the pote ...
REFLEX PHYSIOLOGY
... Afferent input from sensory endings of muscle spindle fiber Alpha motor neuron output to regular skeletal-muscle fiber Stretch reflex pathway Gamma motor-neuron output to contractile end portions of spindle fiber Descending pathways coactivating alpha and gamma motor neurons ...
... Afferent input from sensory endings of muscle spindle fiber Alpha motor neuron output to regular skeletal-muscle fiber Stretch reflex pathway Gamma motor-neuron output to contractile end portions of spindle fiber Descending pathways coactivating alpha and gamma motor neurons ...
Chapter 2 Vocabulary
... 48. __________________ __________________ , located in the left frontal lobe, is involved in controlling the motor ability to produce speech. (p. 69) 49. __________________ __________________ , located in the left temporal lobe, is involved in language comprehension. (p. 69) 50. __________________ i ...
... 48. __________________ __________________ , located in the left frontal lobe, is involved in controlling the motor ability to produce speech. (p. 69) 49. __________________ __________________ , located in the left temporal lobe, is involved in language comprehension. (p. 69) 50. __________________ i ...
Anatomy of spinal cord
... neuroglia and blood vessels. White color is due to high proportion of myelinated nerve fibers The white matter of the spinal cord is arranged in columns/funiculi; anterior, posterior and lateral. The nerve fibers are arranged as bundles, running vertically through the cord. A group of nerve ...
... neuroglia and blood vessels. White color is due to high proportion of myelinated nerve fibers The white matter of the spinal cord is arranged in columns/funiculi; anterior, posterior and lateral. The nerve fibers are arranged as bundles, running vertically through the cord. A group of nerve ...
Treatment injury case study
... In the next 24 hours there was some easing in the pain but Jeannie still had paraesthesiae and loss of sensation, particularly over the dorsum of the index finger and first web. Jeannie was discharged with an appointment to be seen at the outpatient pain service clinic a month later. On review at th ...
... In the next 24 hours there was some easing in the pain but Jeannie still had paraesthesiae and loss of sensation, particularly over the dorsum of the index finger and first web. Jeannie was discharged with an appointment to be seen at the outpatient pain service clinic a month later. On review at th ...
NERVOUS SYSTEM
... The myelin sheath in peripheral nerves normally runs along the axon punctuated by unsheathed nodes of Ranvier which contain a high density of voltage-gated ...
... The myelin sheath in peripheral nerves normally runs along the axon punctuated by unsheathed nodes of Ranvier which contain a high density of voltage-gated ...
Action potentials
... • Motor (efferent) fibers from the brain and upper spinal cord transmit action potentials to end organ (eg., muscle and glands) ...
... • Motor (efferent) fibers from the brain and upper spinal cord transmit action potentials to end organ (eg., muscle and glands) ...
Chapter 10 - Nervous System I
... peripheral nerves that connect the CNS to the rest of the body. C. The nervous system provides sensory, integrative, and motor functions to the body. 9.2 General Functions of the Nervous System (p. 215) A. Sensory receptors at the ends of peripheral nerves gather information and convert it into nerv ...
... peripheral nerves that connect the CNS to the rest of the body. C. The nervous system provides sensory, integrative, and motor functions to the body. 9.2 General Functions of the Nervous System (p. 215) A. Sensory receptors at the ends of peripheral nerves gather information and convert it into nerv ...
Chapter 49 Nervous Systems - Biology at Mott
... Emotions are generated and experienced by the limbic system and other parts of the brain including the sensory areas The limbic system is a ring of structures around the brainstem that includes the amygdala, hippocampus, and parts of the thalamus The amygdala is located in the temporal lobe and help ...
... Emotions are generated and experienced by the limbic system and other parts of the brain including the sensory areas The limbic system is a ring of structures around the brainstem that includes the amygdala, hippocampus, and parts of the thalamus The amygdala is located in the temporal lobe and help ...
Typical disorders of the nervous system 1. In myasthenia gravis can
... + a) subjectively painful sensation reflecting psychophysiological state of a person, which arises as a result of the impact of super-strong or damaging stimuli b) Increased sensitivity to stimuli of the senses, which arises as a result of the impact of superstrong or damaging stimuli. 27. The aggre ...
... + a) subjectively painful sensation reflecting psychophysiological state of a person, which arises as a result of the impact of super-strong or damaging stimuli b) Increased sensitivity to stimuli of the senses, which arises as a result of the impact of superstrong or damaging stimuli. 27. The aggre ...
Nervous System Overview
... – NE increases both force and rate of heart contraction – ACh decreases both force and rate heart contraction. ...
... – NE increases both force and rate of heart contraction – ACh decreases both force and rate heart contraction. ...
The Nervous System
... Short dendrite Long axon Cell body positioned inside the central nervous system (CNS). ...
... Short dendrite Long axon Cell body positioned inside the central nervous system (CNS). ...
3 Types of Muscle Tissue SKELETAL MUSCLE CARDIAC MUSCLE
... Controls gross body movements Striations Multinucleated due to being very active Cylindrical shape Voluntary control ...
... Controls gross body movements Striations Multinucleated due to being very active Cylindrical shape Voluntary control ...
Chapter 9 - Nervous System
... The hypothalamus maintains homeostasis by regulating a wide variety of visceral activities and by linking the endocrine system with the nervous system. a. The hypothalamus regulates heart rate and arterial blood pressure, body temperature, water and electrolyte balance, hunger and body weight, movem ...
... The hypothalamus maintains homeostasis by regulating a wide variety of visceral activities and by linking the endocrine system with the nervous system. a. The hypothalamus regulates heart rate and arterial blood pressure, body temperature, water and electrolyte balance, hunger and body weight, movem ...
diseases of the nerve roots
... that is thought to play a role in the spread of metastatic cancers and infections in the epidural space. Ligamentum flavum is particularly prominent in cervical and lumber regions and can sometimes become hypertrophied and contribute to spinal cord or nerve root compression. The nerve roots exit the ...
... that is thought to play a role in the spread of metastatic cancers and infections in the epidural space. Ligamentum flavum is particularly prominent in cervical and lumber regions and can sometimes become hypertrophied and contribute to spinal cord or nerve root compression. The nerve roots exit the ...
FIGURE LEGENDS FIGURE 27.1 Motor development of the infant
... are often referred to as central pattern generator networks (CPGs). CPGs contain the necessary information to activate different motoneurons and muscles in the appropriate sequence. Some CPGs are active under resting conditions, such as that for breathing, but most are actively turned on from the br ...
... are often referred to as central pattern generator networks (CPGs). CPGs contain the necessary information to activate different motoneurons and muscles in the appropriate sequence. Some CPGs are active under resting conditions, such as that for breathing, but most are actively turned on from the br ...
Neurophysiology
... • Gross Evoked Potentials-- Voltage changes in response to auditory stimulation recorded from the scalp • Single-Unit Measures-- Voltage (or other) changes recorded within a neuron ...
... • Gross Evoked Potentials-- Voltage changes in response to auditory stimulation recorded from the scalp • Single-Unit Measures-- Voltage (or other) changes recorded within a neuron ...
Bio_246_files/Clinical Considerations of the Nervous System
... • Intracranial lesions will become a space occupying lesion that further compromises circulation and damages brain matter. • Looking at what area of the brain was damaged can explain what deficits patient may present with. ...
... • Intracranial lesions will become a space occupying lesion that further compromises circulation and damages brain matter. • Looking at what area of the brain was damaged can explain what deficits patient may present with. ...
spinal cord - Dr Magrann
... X. Vagus Nerve (vagrant = “wanders”) : This is a mixed sensory and motor nerve. It is the only cranial nerve that innervates structures in the thoracic, abdominal and pelvic cavities. 90% of all parasympathetic fibers are in this cranial nerve. This is the only cranial nerve that travels into the ab ...
... X. Vagus Nerve (vagrant = “wanders”) : This is a mixed sensory and motor nerve. It is the only cranial nerve that innervates structures in the thoracic, abdominal and pelvic cavities. 90% of all parasympathetic fibers are in this cranial nerve. This is the only cranial nerve that travels into the ab ...
Answers to WHAT DID YOU LEARN questions
... receptors for fine touch. These receptors are important in distinguishing the texture and shape of the stimulating agent. Tactile discs are associated with special tactile cells (Merkel cells), located in the stratum basale of the epidermis. ...
... receptors for fine touch. These receptors are important in distinguishing the texture and shape of the stimulating agent. Tactile discs are associated with special tactile cells (Merkel cells), located in the stratum basale of the epidermis. ...
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.