Supplemental Digital Content 11

Slides:

Advertisements

Similar presentations

SYNAPSES AND DRUGS.

Advertisements

Muscle Relaxation -When the nerve impulse stops several things happen…

Figure 10.6 Structure of the Neuromuscular Junction Process Diagrams Step-by-Step Copyright © 2007 by John Wiley & Sons, Inc.

How Does A Motor Unit Illicit A Muscular Contraction.

NEUROMUSCULAR JUNCTION DR. ZAHOOR ALI SHAIKH LECTURE

Membrane Transport Chapter 11. Transcellular transport of glucose.

Nervous tissue nervous system overview NS organization terminology anatomy of a neuron neuroglial cells myelin sheath synapse anatomy.

Neuromuscular junction Fig Somatic motor neuron Muscle fiber The neuromuscular junction Motor end plate Terminal bouton Mitochondria Synaptic vesicle.

Introduction to the Nervous System. Neuron Multipolar neuron Axon Glial Cells Nucleus Nucleolus Dendrite Axon Hillock Cell body.

Nerve Supply to Skeletal Muscle. Nerve Supply The outside of the nerve plasma membranes contain a slightly positive charge (Na+). The inside of this same.

Neuromuscular Junction (NMJ). Neuromuscular junction Neuromuscular junction : the synapse between motor neuron and muscle fibre Motor neurons : are the.

Synapse formation completes the wiring of the nervous system Birth and differentiation of neurons Extension of axons/axon guidance Target recognition Synaptic.

Motor terminal. a Neuron axon terminal - black fibers b Synaptic bulbs over the muscle motor end plate - neuromuscular junction c Node of Ranvier in.

Motor Unit: A motor neuron and all the muscle fibers it innervates. *Powerful movements use more fibers *Fine movements use fewer fibers.

Second lecture Functions of neuroglea 1-Support. 2-Insulator. 3-Phagocytes (in pathological state by microglea). 4-Formation of myelin sheath in CNS.

Bio 449Lecture 16 - Muscle IIOct. 6, 2010 Excitation-contraction coupling Excitation Contraction Tropomyosin and troponin Cross-bridge cycling Mechanics.

Nervous System the nervous system receives and interprets information from the internal and external environment and produces a response that allows the.

THE SYNAPSE Where nerve impulses convert to neurotransmitters The Sanger Institute.

Lecture 2 Neurons, Muscles and Motor Units. Voluntary movement begins.... Brain Spinal cord Motor nerves Muscles.

Slot Diagram of Neuron Nissl Bodies Mitochondria Myelin Sheath Axon.

Nervous Tissue 2 Originally Given By: Dr.Ahmed Attayeb Written By: Dr.Divine, Edited & Made up 2 date: Abo Malik Thanks for: DR.I.

Muscular System Histology. Figure Longitudinal section of skeletal muscle tissue.

The Structure of Neurones Aims 1.To describe the structure of sensory and motor neurones 2.To relate the structure of sensory and motor neurones to their.

Myelin again Myelin speeds up the nerve impulse because nerve fibers have Schwann cells around them – Schwann cells restrict ion movement – So impulse.

Skeletal Muscle Contraction

Chapter 7.  Cell body(soma)  Axon Hillock  Axon  Axon Terminal  Dendrites  Myelin Sheath.

 Identify the principle parts of the nervous system  Describe the cells that make up the nervous system  Describe what starts and stops a nerve impulse.

AP Biology Nervous Systems Part 3. Synapse and Neurotransmitter.

What you should know The parts of the nerve What an action potential is How nerve cells are insulated and the function of this How nerve cells communicate.

Chapter 49 Table of Contents Section 1 Neurons and Nerve Impulses.

INTRODUCTION TO THE NERVOUS SYSTEM. Functions of the Nervous System.

Nerve Supply to a Muscle. Nerve Supply Motor Neuron: Nerve that stimulates a muscle cell. A single nerve (motor neuron) will supply approximately 150.

Biology SL Ms. Ragsdale.  Central Nervous System (CNS) – the control center of your brain  Receives all the impulses from your body and coordinates.

Structure of a Neuron Types of Neurons and their basic structures.

Skeletal Muscle Blank.

Organization of Skeletal Muscles

Synapse formation completes the wiring of the nervous system

LECTURE 15 NEUROMUSCULAR JUNCTION

Neurons & Neuroglia Lecture 6.

Skeletal Muscle Stimulation and Anatomy

Nervous System Parts and Functions

The Nervous System Nerve Cells.

Muscular System Histology

Peripheral Nerve VIBS 443/602.

Molecular Genetics of Demyelination: New Wrinkles on an Old Membrane

Chapter 49 Table of Contents Section 1 Neurons and Nerve Impulses.

The Neuromuscular Junction

SYNAPSES AND DRUGS.

SYNAPSES AND DRUGS.

Schwann cells: Dynamic roles at the neuromuscular junction

Communication Between the Nervous System and Skeletal Muscles

AP Biology Nervous Systems Part 3.

Muscle Innervation Skeletal muscles are acted upon by somatic motor neurons (neurons that take thought) Motor unit: axon terminal branches of the neuron.

Animals have nervous systems that detect external and internal signals, transmit and integrate information, and produce responses. Neurons.

SYNAPSES AND DRUGS.

AP Biology Nervous Systems Part 3.

Functional Anatomy Excitatory Synapses Inhibitory Synapses

Axon Branch Removal at Developing Synapses by Axosome Shedding

Maria E Rubio, Robert J Wenthold Neuron

Volume 13, Issue 8, Pages (April 2003)

AP Biology Nervous Systems Part 3.

Nerves and Muscles.

Activation of the sarcomere

Supplemental Digital Content 3. Immunohistochemical analysis of Thy1

Pruning an Axon Piece by Piece

Ultrastructure of the sciatic nerve from P60 and P75 control and Miz1ΔPOZ animals reveal signs of demyelination and dysmyelination. Ultrastructure of the.

Figure 3 Bilateral optic atrophy and sural nerve biopsy of patient AII-2 Bilateral optic atrophy and sural nerve biopsy of patient AII-2 (A) Red-free photographs.

Muscle microprocesses and contacts between myotubes and axons in E15 intercostal muscle. Muscle microprocesses and contacts between myotubes and axons.

HAFIZ M BILAL AHMAD. Roll No : 51 Independent Medical College

Presentation transcript:

Supplemental Digital Content 11 Supplemental Digital Content 11. (A) Motor nerve terminals from intrinsic foot muscle showing dense accumulation of tubulovesicular membranous profiles and degenerating mitochondria at 40 weeks of age. Bar = 500 nm. Inset shows the enlargement of tubulovesicular organelles from the same end-plate. Bar = 100 nm. (B) A partially denervated neuromuscular junction at 4 weeks of age showing Schwann cell processes (arrows) in the primary synaptic cleft. Arrowhead points a part of nerve terminal showing tubulovesicular organelle accumulation. Bar = 500 nm. (C) A myelinated axon from an intramuscular nerve at 4 weeks of age showing a cluster of tubulovesicular organelles sequestered by double membranes (arrow). Bar = 500nm.