Muscle Contraction & Excitation Muscle excitation takes place when there is a synaptic transmission and induction of an impulse. There are six steps that take place during muscle excitation. (1)The action potential travels down the somatic motor neuron axon reaching the synaptic bulb causing calcium ions to flow into the synaptic bulb. (2)The increase of calcium in the synaptic bulb causes the synaptic vesicles to undergo exocytosis. (Exocytosis a process that allows large molecule to leave
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Overview of the Skeletal System Laszlo Vass‚ Ed.D. Version 42-0018-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Purpose
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Skeletal System Study Guide – Use the lecture folder to help you answer these questions. The more detail you add‚ the better prepared for the test you will be. 1. What are the functions of the skeleton? • Support • Movement • Protection • Mineral storage • Blood cell synthesis 2. What is the difference between osteoclasts and osteoblasts? Osteoclasts cause the bone tissue to break down and release calcium into the blood stream. When the calcium
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The Muscular System: Skeletal Muscle Tissue 1. Fill in the characteristics of the three muscle types: |Muscle Type |Cardiac |Skeletal |Smooth | |Shape of cell |Branching Cell |Elongated Cell |Spindle Shaped Cell | |# of nuclei |Single Central Nucleus |Multiple Peripheral Nuclei |Single Central Nucleus | |Striations |Visible
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Gluteals are the group of muscles comprising of your buttocks. Out the four muscles in your buttocks‚ there are only 3 groups of muscle that can be found on your buttocks. These muscles are gluteus maximus‚ medius and minimus. The fourth group which is the smallest one is the tenor fasciae latae muscles that can be found in the anterior area of the body. Functioning together‚ the gluteal muscles handle most of the motions of the upper leg‚ which includes rotation of the thigh‚ and abduction and turning
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Muscular and Skeletal System Worksheet Name: Heather Williams Complete the following steps before answering the questions below: 1. Review the following clinical illustrations in ADAM: Clinical Illustrations Skeletal System- upper limb- radial head injury fracture types bone building exercise Muscular System – upper limb- active vs inactive 2. Review the Joints Case Study at the anatomy and physiology place. 3. Answer the questions below. You
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Spring 2014 1. Neuroglial cells that regulate neurotransmitter metabolism and capillary permeability are: a. neurolemmacytes b. astrocytes c. oligodendrocytes d. neurons 2. The portion of the nervous system concerned with afferent input from skeletal muscle is: a. visceral sensory b. somatic motor c. somatosensory d. propriosensory 3 Light adaptation of the eye occurs due to: a .a decrease in the active photo pigment b. an increase in active photopigment c. a shift to using rod cells d
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muscular and skeletal systems play a very important role in the body. They help each other perform functions for the entire body. The muscular system and the skeletal system are the basis of the body structure. The muscular system generally produces movement. The skeletal basically provides the necessary support for these systems to work together. The skeletal system has many organs. Some organs include bones‚ cartilage‚ and ligaments. Teeth are also considered a part of the skeletal system but
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We have three types of muscles in our bodies‚ skeletal‚ smooth and cardiac. Each type of muscle performs different functions in our bodies. Some of the characteristics of our muscles are that they respond to stimuli‚ they are able to shorten in length‚ they stretch when they are pulled and they tend to return to their original shape after contracting or extending them. Muscle contractions occur when our nervous system sends a signal via the neuromuscular junctions the signal arrives at the end bulb
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Muscular System: Muscle Metabolism 1. List the three roles of ATP in muscle contraction: 1. _energizing the power stroke of the myosin cross bridge________________________ 2. _disconnecting the myosin head from the binding site on actin at the conclusion of a power stroke_________________ 3. _energizing the calcium ion pump; transporting calcium___________________ 2. The potential energy in ATP is released when the terminal high-energy bond is broken by a process called _hydrolysis________________________
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