BIOS 252 Week 1 Case Study Assignment: Muscles (GRADED A)

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BIOS252-14403 Chamberlain University BIOS 252 Week 1 Case Study Assignment: Muscles 1. Name the muscles severed during the amputation event. The muscle name during amputation ... is the distal forearm. 2. If the patient were no longer to properly pronate his arm, which muscle do you think has been compromised? The pronator teres has been compromised. 3. In general, a patient with a severed limb has a smaller window of time for successful replantation when compared with finger replantation surgery. This is in part due to the difference in tissue composition of the two anatomical structures. What does this say about the metabolic demands for muscles, cartilage, and bone? Why do you suppose that is? Without it, it wont work. 4. What tissue type can be found bridging the two halves of the once severed muscle bellies? Why? A collagen scaffold can be found bridging two halves of the once severed muscle bellies because the brain will send special cells to the injured muscle and slowly build a bridge of new tissue. (Hint: How do muscles grow, hyperplasia or hypertrophy?) hyperplasia Increase in muscle fiber numbers. Hypertrophy increases muscle fiber numbers. References Meyer, V. E. (2003). Upper Extremity Replantation--A Review (Links to an external site.). European Surgery, 35(4), 167-173 Saladin, K. S. (2021). Anatomy and Physiology: The Unity of Form and Function. McGraw Hill. [Show More]

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