'Muscle cell' diaporamas de présentation

Muscular System. Muscles are responsible for all types of body movement 3 basic muscle types are found in the body Skeletal muscle Cardiac muscle Smooth muscle. Characteristics of Muscles. Muscle cells are elongated (muscle cell = muscle fiber)

The Long Term Effects of Pesticide Exposure on Human Health An Update on Recent Studies. Study Issues Acute Effects Skin Problems Respiratory Problems Reproduction Risks to Children Nervous System Cancers. Helen Murphy, FNP-MHS

AN INTRODUCTION TO METABOLISM. Metabolism, Energy, and Life. 1. The chemistry of life is organized into metabolic pathways 2. Organisms transform energy 3. The energy transformations of life are subject to two laws of thermodynamics 4. Organisms live at the expense of free energy

Specialization in cells. Cells in multi-cellular organisms are specialised (adapted) so that they can perform a particular function . Specialised animal cells. Muscle cell. Muscle Cells. Function: to pull on a bone Adaptation: have fibres which can contract (shorten). Ciliated cells. cilia.

Chapter 6 The Muscle Anatomy. The Muscular System. Functions Movement Maintain posture Stabilize joints Generate heat Three basic muscle types Skeletal muscle* Cardiac muscle Smooth muscle. Muscles and Body Movements.

Neurons = Nerve cells. Neuron anatomy. Signal integration. Cell Body = site of protein synthesis Dendrites = receive input from other neurons Axon = conducts signal as electrical impulse (action potential) Myelin sheath = insulates axon, produced by Schwann cells

Signal transduction pathways Ligand binds to specific receptor Pathways relay information from plasma membrane to interior of cell Changes are initiated along the way; effect on cell behavior and/or gene expression protein phosphorylation second messengers.

Chapter 6. Use the terminology associated with the musculature system Learn about the following: Different types of muscle cells Muscle tissue development Gross and fine muscle structure Gross muscle function Muscle cell physiology Muscle types and actions Muscle development and growth

Muscular System. Honors Anatomy & Physiology. Skeletal, Smooth, or Cardiac?. SKELETAL Striated Voluntary Multinucleated Bound to bones to move skeleton. SMOOTH Not striated Involuntary Single nucleus In hollow organs like stomach Moves food. CARDIAC Striated Involuntary

Muscle Contraction and Movement. Chapter 30. Fig 30.7. Muscles. Muscles are attached to bones by tendons Muscles work in antagonistic pairs Ex. Biceps and triceps One muscle contracts while the other relaxes. Fig 30.8. Fig 30.8. Contractile apparatus. Skeletal muscle

Biological Aspects of Adolescence Sam Mathews, Ph.D. The Department of Psychology The University of West Florida. Puberty Changes in physical attributes Neurological changes Health practices. Biological Bases. Puberty Process:

The Long Term Effects of Pesticide Exposure on Human Health An Update on Recent Studies. Study Issues Acute Effects Skin Problems Respiratory Problems Reproduction Risks to Children Nervous System Cancers. Helen Murphy, FNP-MHS

RHABDOMYOLYSIS. What you need to know.

Chapter 28. Nervous Systems. 0. Communication Between Neurons: Synaptic Transmission . 0. © 2012 Pearson Education, Inc. Signal must be passed to another cell The synapse: Relay point between neuron and an effector cell Another neuron Muscle cell Endocrine cell.

Visceral Skeleton Start of Muscular. Visceral Skeleton. Spanchnocranium Develops within the pharyngeal arches Fishes – jaw skeleton Gill arches. Fig. 7.3. Squalus. Cartilages of the Pharyngeal arches. Palatoquadrate (I). Meckel’s cartilage (I). Ceratohyal (II). III IV V VI VII.

Structure and Function of Skeletal Muscle. Skeletal Muscle. Human body contains over 400 skeletal muscles 40-50% of total body weight Functions of skeletal muscle Force production for locomotion and breathing Force production for postural support Heat production during cold stress.

Cell Motility. Lecture 24 BSCI 420/421 Nov 21, 2002 “ A university is a group of faculty and student entrepreneurs, united by a common opposition to parking policies.” - C. Kerr Microfilament-based motility Microtubule-based motility. Microfilament-based motility

Muscle System. Lizzy Menden Savannah Chase. Learning Target!. Compare skeletal, smooth, and cardiac muscle cells and tissue. (knowledge). True or False!. Skeletal is the only type of muscle cell that does not have striations? .

The signal for contraction comes down the axon of a motor neuron to the neuromuscular junction. When it arrives at the axon terminal, the synaptic vesicles fuse with the membrane and release the neurotransmitter (acetylcholine) into the synaptic cleft.

NEUROMUSCULAR JUNCTION. DR. ZAHOOR ALI SHAIKH LECTURE--11 . NEUROMUSCULAR JUNCTION(N.M.J) . Neuromuscular junction is the junction between Motor neuron and Skeletal muscle fiber. They are linked chemically. Neurotransmitter at neuromuscular junction is Acetylcholine. .