SMALL FIBRE
Small fiber neuropathy involves thin and unmyelinated nerve fibers, leading to various sensory disturbances. The Erlanger and Gasser classification details the different types of nerve fibers involved. Symptoms include burning, tingling, and numbness, often presenting in a stocking-glove pattern. Di
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Lees Cross Junction Improvement Scheme in Limerick City and County
Limerick City and County Council is advancing the Lees Cross Junction Improvement scheme in Ballynashig to enhance safety and traffic flow. The project aims to address sightline issues and prioritize road users, with proposed changes to the existing five-arm junction layout. Environmental considerat
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Nerve and muscle physiology
The lecture delves into the intricate structure of nerves, highlighting the morphology of nerve fibers and the process of myelination. It explores the classification of nerve fibers, emphasizing the role of dendrites, axons, and synaptic functions in the nervous system. The significance of Schwann c
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Skeletal Muscle Relaxants and Neuromuscular Blockade
Skeletal muscle relaxants are used to induce muscle relaxation during surgeries. Neuromuscular blocking agents act at the neuromuscular junction. These drugs can either peripherally reduce muscle tone or centrally cause muscle paralysis. Different types of muscle relaxants are classified based on th
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Understanding Proprioceptors and Their Role in Body Balance
Proprioceptors play a crucial role in providing information about the position of body parts, muscle spindle response to stretch, and muscle tension regulation. Muscle spindles and Golgi tendon organs are key components in maintaining muscle tone and ensuring proper reflex actions. This article delv
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Muscle Contraction Phases and Responses: A Comprehensive Overview
Various changes observed during muscle contraction include the latent period, contraction phase, and relaxation phase. Muscle twitch, tetanus, and their durations are important phenomena in understanding muscle physiology.
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Understanding Nerves and Muscles: Physiology Insights by Dr. Amar AL-Musawi MD, PhD
Explore the intricate world of nerve fiber morphology, myelination, and classification in this enlightening lecture by Dr. Amar AL-Musawi. Delve into the significance of myelination in enhancing nerve function and learn about factors affecting conduction velocity. Discover the role of glial cells in
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Understanding the Brachial Plexus Anatomy and Function
The brachial plexus is a crucial network of nerves in the upper limb, formed by nerve fibers originating from C5 to T1 spinal levels. It plays a significant role in innervating the upper extremity muscles and providing sensory feedback. The plexus is categorized into roots, trunks, divisions, cords,
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Mechanism of General Anaesthesia Theories: Lipid Solubility, Surface Tension, Microcrystal, Protein Binding
Mechanism of general anaesthesia involves theories focusing on the interaction of anaesthetics with cell membrane components like lipids and proteins. The Lipid Solubility theory emphasizes the importance of an anaesthetic's affinity and solubility in nerve cell membranes, while the Surface Tension
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Understanding P-N Junction and Semiconductor Physics
A p-n junction is a crucial interface in semiconductor devices that consists of a p-type and an n-type material, creating a boundary with distinctive charge carriers. By doping different semiconductor materials, a p-n junction can be formed, enabling the diffusion and drift of electrons and holes ac
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Understanding Electromyography (EMG) and Motor Neurons
Electromyography (EMG) is an electrodiagnostic technique used to evaluate muscle health by measuring electrical activity. EMG measures muscle response to nerve signals, displayed as waves on an oscilloscope. Motor neurons transmit signals from the brain to muscles, enabling movement. Upper motor neu
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Understanding the Histological Structure of Muscle Cells
This presentation delves into the histological structure of three types of muscle cells - skeletal, cardiac, and smooth muscles. Learn about their differences, such as striation, voluntary vs. involuntary control, and cellular organization. Discover the components of muscular tissue, the coverings o
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One of the Best Remedial Massage in Bondi Junction
Pine Tree Remedial Thai Massage offers the Best Remedial Massage in Bondi Junction. Their skilled therapists provide authentic Thai massage techniques, helping you unwind and find relaxation. Whether you seek relief from muscle tension or indulge in
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Leprosy Nerve Examination by Dr. N. K. Kansal
This informative content provides a detailed guide on leprosy nerve examination conducted by Dr. N. K. Kansal, an Associate Professor. It covers the procedure for palpation of a nerve, emphasizing correct patient positioning and gentle palpation techniques. The importance of comparing nerves on both
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Understanding Motor Units and Neurotransmitters in Muscle Contraction
Motor units consist of a motor neuron and the muscle fibers it innervates. Neurotransmitters like acetylcholine play a vital role in stimulating muscle contraction by transmitting signals at the neuromuscular junction. This communication between neurons and muscles is essential for proper movement a
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Understanding the Biological Basis of Human Motion and Motor Learning
In the biological basis of human motion, a series of electro-chemical-physical reactions occur at the neuromuscular junction, enabling nerve stimulation for muscle contraction. Nerve impulses for movement originate in the central nervous system or muscles, with acetylcholine transmitting impulses be
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Understanding Facial Nerve Lesions: Clinical Scenarios and Anatomy Overview
A comprehensive exploration of facial nerve lesions through real-life clinical scenarios and detailed anatomical insights. Dive into cases involving trauma, fractures, and abscesses to understand the varied manifestations of these lesions. Learn about the functions of the facial nerve, its segments,
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Clinical Evaluation of Trigeminal Nerve Function
Sensory evaluation of trigeminal nerve function involves assessing exteroceptive sensations across its divisions, identifying sensory losses due to lesions, and distinguishing different types of lesions affecting sensation on the face. Motor evaluation focuses on the muscles of mastication to detect
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Contribution of Quadriceps, Hamstrings, and Latissimus Dorsi Muscle Strength to Rowing Performance in West Java
Rowing is a demanding sport that requires strong leg muscle strength for optimal performance, particularly in West Java where rowing athletes train. This study aims to investigate the contribution of quadriceps, hamstrings, and latissimus dorsi muscle strength to the performance of rowing athletes i
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Understanding PN Junction in Semiconductors
Mobility in semiconductors is affected by scattering events as temperature increases, with impurity scattering dominating at low temperatures and lattice scattering at high temperatures. A p-n junction is the interface between p-type and n-type semiconductor materials, with excess holes on the p-sid
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Understanding Tissues: Types, Characteristics, and Functions
Explore the intricate world of histology and tissues, where groups of cells with similar structures and functions come together to support various bodily processes. From epithelial to nerve tissues, delve into the differences in tissue classes, cell types, and extracellular matrices. Discover the un
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Understanding Spasticity and Increased Muscle Tone in Neurological Disorders
Spasticity and increased muscle tone are common features in neurological disorders, characterized by hyperactive stretch reflexes and muscle contractions. Spasticity is velocity-dependent and associated with upper motor neuron lesions, leading to increased resistance to passive movement. Rigidity, o
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Understanding Ion Channel Dysfunction in Critical Illness
An intriguing case study presents a young male with weakness and coma in the ICU following pneumonia and sepsis. Nerve conduction results indicated critical illness myopathy and polyneuropathy, along with cardiac abnormalities. Reduced muscle excitability was attributed to a sodium channelopathy. Th
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Understanding Animal Tissues: Epithelial, Muscle, Nerve, and Connective Tissues
Explore the four general categories of animal tissue - epithelial, muscle, nerve, and connective tissues. Learn about the traits, classification, examples, and functions of each type of tissue. From the tightly packed cells of epithelial tissue to the excitable nature of muscle tissue, delve into th
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Exploring the Olfactory Nerve and Its Role in the Sense of Smell
The olfactory nerve, the first cranial nerve, plays a crucial role in our sense of smell. It is unique for its ability to regenerate, with basal cells facilitating this process. The olfactory system is responsible for detecting odors and is essential for various behaviors in mammals. This system con
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Understanding Neuromuscular Junction Disorders with Dr. Hana Albulaihe
An in-depth exploration of neuromuscular junction (NMJ) anatomy, physiology, and associated disorders by Dr. Hana Albulaihe, a renowned Consultant Neurologist. The NMJ comprises the axon terminal of a motor neuron and the motor end plate of a muscle fiber. Disorders discussed include Myasthenia grav
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Understanding Types of Muscle Actions in Physiology
Explore different types of muscle actions, including isometric contractions, isotonic contractions, concentric contractions, eccentric contractions, isokinetic contractions, and iso-inertial contractions. Each type plays a crucial role in muscle function and movement, with varying effects on muscle
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Importance of Manual Muscle Testing in Rehabilitation
The assessment of muscle function is crucial in various medical exams, showing correlations with quality of life, work productivity, and aging-related issues. Manual muscle testing is commonly used by healthcare professionals to evaluate muscle strength and guide treatment plans. Assessing muscle fu
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Understanding Animal Tissues: Epithelial, Muscle & Nerve Tissues
A tissue is a group of cells with similar structures working together for a common function. There are four main types of animal tissues: Epithelial, Connective, Muscle, and Nervous tissues. Epithelial tissue forms protective layers and linings in the body, aiding in absorption, excretion, and trans
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Understanding Facial Nerve Disorders: An Overview
Facial nerve disorders can lead to various symptoms such as facial paralysis and otalgia. This article covers the embryology, anatomy, and neuropathophysiology of the facial nerve. The development of the facial nerve complex occurs in the early stages of gestation, and abnormalities may be associate
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Journey from Esotropia Resulting from Bilateral 6th Nerve Palsy in Infancy to Orthotropia
A detailed case study presented at the 9th Annual State Ophthalmological Conference showcases the successful management of esotropia resulting from bilateral 6th nerve palsy. The journey of a 30-year-old male patient from childhood inward eye deviation to achieving orthotropia post-surgical interven
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Understanding Skeletal Muscle Relaxants and Muscle Contraction Mechanisms
Skeletal muscle relaxants play a crucial role in relaxing muscles without affecting consciousness significantly. They are classified into neuromuscular blockers and spasmolytics, each targeting different mechanisms in the body. Muscle contraction occurs through the release of acetylcholine and the s
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Understanding Connective Tissue Wrappings and Skeletal Muscle Structure
Exploring the connective tissue wrappings and attachments of skeletal muscles, this content highlights the cord-like structures, collagen fibers, and their role in connecting muscle bellies to bones. It also delves into the surrounding connective tissues such as fascia, epimysium, perimysium, and en
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Overview of Muscle Disorders and Muscular Dystrophies
The human body consists of over 600 muscles, divided into skeletal, smooth, and cardiac muscles. Diseases of skeletal muscle encompass myopathy, myositis, and muscular dystrophy. Muscle disorders are categorized into genetic muscular dystrophies, channelopathies, inflammatory myopathies, and endocri
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Understanding Serum Calcium Measurement in Practical Biochemistry
Calcium is a crucial mineral for various bodily functions like muscle and nerve signaling, heart health, and bone formation. Serum calcium tests help screen for bone diseases and calcium disorders by measuring the amount of calcium in the blood. Two types of tests, total calcium and ionized calcium,
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Understanding Calcium Homeostasis and Its Importance in the Body
Calcium homeostasis plays a crucial role in various physiological functions, including bone integrity, blood clotting, enzymatic regulation, hormonal secretion, neurotransmitter release, nerve excitability, and muscle contraction. Bones act as a major calcium reservoir, with blood containing 50% ion
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Overview of Leg Compartments and Nerve Supply in Human Anatomy
This informative content provides detailed insights into the anterolateral compartment of the leg, facial compartments, muscles in the lateral compartment, nerve supply, anterior compartment of the leg, blood, and nerve supply, deep fibular nerve distribution, dorsum and dorsalis pedis artery. It di
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Understanding Electrical Concepts in Nerve Conduction Studies
Exploring the fundamental electrical properties in nerve conduction studies, including charge, voltage, current, and impedance. Learn about normal values, anatomy, and anomalies in nerve function. This self-study curriculum is designed for technologists interested in electromyography and nerve condu
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Understanding Basic Histology and Tissue Types
Explore histology, tissues, and types of tissues including epithelial, connective, muscle, and nerve tissues. Learn about tissue characteristics, differences, and functions, as well as details on specific tissue types like cardiac muscle, bone tissue, skeletal muscle, and smooth muscle. Delve into e
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Overview of Peripheral Nerve Injuries and Brachial Plexus Injuries
Explore different types of peripheral nerve injuries including Erb's palsy, Klumpke palsy, isolated axillary nerve injury, and isolated musculocutaneous nerve injury. Learn about the anatomy, causes, motor and sensory exams, and management of these injuries. Understand the myotomes and dermatomes as
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