The muscle physiology of skeletal muscle was observed by using electrical‚ physical‚ and neural stimulations of an isolated gastrocnemius muscle from Rana pipiens. The gastrocnemius receives signals from the action potentials of the sciatic nerve. The muscle contraction is caused by the binding of a neurotransmitter once the action potential reaches the neuromuscular junction. Stimulation of the muscle and the sciatic nerve allows for recording and measuring of these properties. We observed twitch
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Organization of Muscle Tissue Laszlo Vass‚ Ed.D. Version 42-0016-00-01 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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Anatomy and Physiology Web-quest mucles and bones We live in our bodies. It is important that we understand how our bodies work so that we will be able to take good care of them while we are here on Earth in these spectacular containers!! Your body is covered by the largest organ and is supported within by foundation‚ your skeletal system. All your body systems have to work together in order to keep you alive and well. You will be exploring then parts of your body by using various web resources
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Skeletal Muscle Physiology Activity 1 1. Skeletal muscle fiber- long‚ cylindrical cell with multiple oval nuclei arranged just beneath the sarcolemma Motor unit- all of the muscle cells controlled by a single motor neuron Skeletal muscle twitch- a single stimulus-contraction-relaxation cycle in a skeletal muscle Electrical stimulus- uses an electrical current to cause a single muscle or a group of muscles to contract Latent period- the time between the stimulation of a muscle and the start
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anatomy and physiology lab 1. What are some differences between Judy and Mariah that might make Judy more "at risk" for skin? cancer than Mariah?Judy had a pasty white skin. Therefore‚ her skin had less melanin than Mariah who had black hair and more melanin and are more protected against the uv rays of sun. 2. What observations did Judy make concerning her mole? Her mole changed shaped and turned bigger and its side were jagged. The middle was purplish-black and its edge were darker than
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results in the Lab Report. You answered: 426 ml O2/hr 1i. Now that you have calculated the oxygen consumption per hour for this rat‚ you can calculate the metabolic rate per kilogram of body weight with the following equation (note that you need to convert the weight data from grams to kilograms to use this equation). Metabolic rate = (ml O2/hr)/(weight in kg) = ml O2/kg/hr Enter the metabolic rate in the field below and then click Submit Data to display your results in the Lab Report. You answered:
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Assignment 6: Exercise and Cardiopulmonary Physiology Lab Report by from tables submitted by and and lab partners and Biology 112‚ Section original graph submitted April 2‚ 2013 Abstract: The effect of exercise/physical activity on pulse‚ blood pressure‚ and respiration rate was tested on biology students. The results of the experiment showed that each of these parameters is affected after engaging in 2 minutes of physical activity. We found that average pulse‚ mean arterial pressure
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edu/biology/Wags/histopage/colorpage/cin/cin.htm To be used in Anatomy & Physiology-BIOL 165 & 166 labs only Not to be used as a source of reference Not to be sold or distributed outside of the classroom Lecturers: Nadia Washington‚ MSc. Delano Lewis‚ PhD. Disclaimer The exercises used in this manual are from various sources and are adapted to suit the Anatomy and Physiology lab sessions at Northern Caribbean University. The manual should not be sold or
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doubles. The muscles can hold a higher workload if they originally have a higher threshold of stimulation with no workload at all. 2. Why would a muscle’s threshold of stimulation change as its Workload changes? A muscle’s threshold of stimulation changes as its workload changes because the muscle needs more stimulation and more power to contract. 3. Which muscles were able to contract under the greatest loads? What does this suggest about the role these muscles play in frog movement? The
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threshold of stimulation will increase by 1. The muscles that have a higher threshold of stimulation can take on a high workload if it originally had no workload. 2. . Why would a muscle’s threshold of stimulation change as its Workload changes? The muscle will need a higher stimulation and work harder to be able to contract. 3. Which muscles were able to contract under the greatest loads? What does this suggest about the role these muscles play in frog movement? The thigh and calf contracted under
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