4. Draw and label a neuromuscular junction showing how a nerve impulse stimulates muscle contraction.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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4.
Draw and label a neuromuscular junction showing how a nerve
impulse stimulates muscle contraction.
Page 1 of 7
Transcribed Image Text:4. Draw and label a neuromuscular junction showing how a nerve impulse stimulates muscle contraction. Page 1 of 7
1
Project 2 Muscle Diseases: Muscular Dystrophy
Spunky is a 5-year-old girl who has very large calf muscles and shows severe weakness in her leg and arm
muscles. Laboratory tests showed that Spunky has high levels of creatine phosphokinase in her urine. The doctor
explained to her parents that Spunky's muscles are being replaced by fat and connective tissue because her body cells
cannot metabolize protein properly. As a result, Spunky's cells cannot produce creatine from amino acids. Therefore,
she cannot store creatine phosphate in her muscles that is necessary to provide energy for her muscles to contract.
Help Spunky's parents understand her disease by completing the following tasks.
1. Locate/Identify the muscles listed below at the appropriate line on the pictures.
2.
Write the origin and insertion point of each muscle.
3.
Draw a diagram to show how a muscle fiber uses energy for contraction.
Transcribed Image Text:1 Project 2 Muscle Diseases: Muscular Dystrophy Spunky is a 5-year-old girl who has very large calf muscles and shows severe weakness in her leg and arm muscles. Laboratory tests showed that Spunky has high levels of creatine phosphokinase in her urine. The doctor explained to her parents that Spunky's muscles are being replaced by fat and connective tissue because her body cells cannot metabolize protein properly. As a result, Spunky's cells cannot produce creatine from amino acids. Therefore, she cannot store creatine phosphate in her muscles that is necessary to provide energy for her muscles to contract. Help Spunky's parents understand her disease by completing the following tasks. 1. Locate/Identify the muscles listed below at the appropriate line on the pictures. 2. Write the origin and insertion point of each muscle. 3. Draw a diagram to show how a muscle fiber uses energy for contraction.
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