Gravitation Gravitational field strength at a point is defined as the gravitational force per unit mass at that point. Newton’s law of gravitation: The (mutual) gravitational force F between two point masses M and m separated by a distance r is given by F = | GMm | (where G: Universal gravitational constant) | | r2 | | or‚ the gravitational force of between two point masses is proportional to the product of their masses & inversely proportional to the square of their separation. Gravitational
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The brachial plexus is a network of spinal nerves. Spinal nerves carry information from peripheral sensory receptors to the spinal cord (of the central nervous system)‚ and then carry information back from the central nervous system to effector muscles and glands. The brachial plexus carries out these functions in the pectoral girdle and upper limbs. Specifically‚ nerves of the brachial plexus aid in innervation of the muscles of the upper limbs (with the exception of the trapezius and the levator
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work together via nerve fiber bundles called arcuate
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Skeletal Muscle Cell There are millions of different types of cells in the world. They are located everywhere. Some are more known than others. The skeletal muscle cell was studied by many scientist but two important scientist are Alexander Mauro and Bernard Katz. They discovered a lot about thee skeletal muscle cell. The skeletal muscle cell is located everywhere in the body. Skeletal muscle cells are attached to bones by tendons as well in some areas the skin. Skeletal muscle cells are
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Effects of Selected Drugs During anesthesia‚ there is a great amount of drugs used to suppress the pain that would occur to the body. There are some common drugs that are used. Alcohol‚ Aspirin‚ Lidocaine‚ Morphine‚ and Succinylcholine are all used during anesthesia. Each is used to interrupt the pain signals during surgeries. Without these medications‚ the body would not be able to withstand such trauma occurring to perform the procedure fully. For many years‚ men and women have used the
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changes in the intervertebral discs‚ osteophytosis of the vertebral bodies‚ hypertrophy of the facets and laminal arches‚ and ligamentous and segmental instability. As spondylosis refers degenerative osteoarthritis of joint‚ it may cause pressure on nerve roots with subsequent sensory or motor disturbance. Clinically‚ several syndromes‚ both overlapping and distinct‚ are seen. These include neck and shoulder pain‚ sub occipital pain and headache‚ radicular symptoms‚ and cervical spondylotic myelopathy
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* Describe how the action potential is generated and propagated throughout the cell * Describe the relative and absolute refractory periods * Explain how myelin increases the action potential conduction velocity * Explain how axon diameter affects the action potential conduction velocity * Explain why axons can regenerate in the peripheral nervous system by not the central nervous system * Explain how local anesthetics work * Explain how myelin contributes to the symptoms
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represented in magnitude (scaled) and direction by arrows. velocity mass 10 N displacement speed 5 km VECTORS momentum distance : A distance is simply the length of a journey. displacement : displacement is the distance moved in a given direction. Speed / velocity speed : The speed of an object is the rate at which distance is increasing. velocity : velocity is the rate at which displacement is changing. Velocity should always be quoted with a direction. Average speed
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phophates protein anions Front these gates are found on the dendrites and cell body of neurons Back ligand gates mechanical gates Front this conduction type is faster and more energy efficient and involves myelinated neurons Back saltatory Front this is the name for a bundle of axons in the PNS Back nerve Page 5
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Chapter 14: Cardiovascular Physiology Cardiovascular Physiology Chapter 14 " Heart anatomy " Cardiac muscle cells " Autorhythmic cells " Cardiac cycle " Cardiac output " 1 Functions of Circulatory System " Transportation" – Respiration" Transport 02 and C02." – Nutrition" Absorbed digestion products delivered to liver and tissues" – Excretion" Carry metabolic wastes to kidneys" – Hormonal: " Carry hormones to target tissues" 2 The cardiovascular
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