anatomy

Purpose: To strengthen and demonstrate your knowledge of the Skeletal Muscle and its systemic relationship in the body.

Criteria for Success: To be successful you will identify the important anatomical structures/organs involved in this situation, including muscles, cells of the muscle or other membranes, tissue types, muscle fibers that are active, muscle contraction and any other physiological processes taking place in the Skeletal Muscle or related systems. You can submit this in whatever form of an assignment is easiest for you, such as a diagram, essay, video, ppt, etc. You can also refer to the rubric for how I will evaluate and grade this. I suggest also using the Skeletal Muscle study guide for what you need to consider and cover when evaluating these cases. Look at the study guide and find what is connected to each case. *Remember you are not a doctor here trying to cure the situation, you are examining and explaining the anatomical and physiological happenings.

Case Study Assessment Task: Below are 3 case studies. You are required to complete all 3. You need to read these and based on the situation/case provided, identify the anatomy/physiology involved as related to the Skeletal Muscle, what is going wrong or has occurred, and how that impacts the Skeletal Muscle specifically. You also need to provide an explanation for how the Skeletal Muscle responds to the situation. In your overall answer(s) you must include the following: (When turning your answer in, please underline each of these terms in your answer). This assignment must be submitted through Turnitin and the similarity score needs to be less than 20% in order to be graded.

• ATP
• Sarcomere
• Phosphate
• Potassium ions
• Calcium ions
• Sodium ions
• Oxygen
• Carbon Dioxide
• Acetylcholine
• Acetylcholinesterase
• Eccentric
• Concentric
• Slow Oxidative (Type 1 Fibers)
• Fast Oxidative (Type IIA Fibers)
• Fast Glycolytic Fibers (Type IIB)
• Tendons
• Dense Regular Connective Tissue
• Fibroblasts
• Collagen
• Myosin
• Actin
• Tropomyosin
• Troponin
• Depolarization
• ADP
• Repolarization
• Cholinergic Receptors
• Synapse

1) David was walking along the sidewalk in downtown Longview, when his son ran out into the road. David took off quickly in an explosive movement to grab his son from the street. When David returned to the sidewalk with his son, he quickly put his hands on legs as he was breathing heavily, heart rate up, and his legs were tightened and somewhat fatigued. Focus your answer on the actions of the muscles in the legs under this circumstance.

2) Kymani was hanging out at home when his friend offered him a drink of a new energy drink that was being developed by a family member. After Kymani took a few drinks he began to feel weak and lost motor movement/muscle control. He began to have muscle spasms and could not control his movements. Fear of a stroke or brain injury, Kymani’s friend rushed him to the nearest hospital. The medical team was able to figure out that an irregular chemical in the energy drink was acting as an inhibitor to the cholinergic receptors in his muscles that bind to Acetylcholine, leading to Kymani’s symptoms.

3) Ashley is a gifted athlete and loves to workout. She is a committed and experienced cross-fit athlete and Volleyball player. One day while at the gym she planted hard on her left foot to run forward and heard a snap in the back of her leg. The tendon attached to her calcaneus popped. After surgery Ashley was forced to wear a brace/cast for 3 months and her left leg became half the size in muscle as her right leg. She had a new challenge ahead of her to get back in shape. Make sure to explain the anatomy involved in this injury and physiologically what happened to the tendon, muscle, and bone involved and also think about what could happen to a muscle in a brace for 3 months.