Which abdominal muscles has the unique "6-pack" structure? o What features associated with that muscles give it its distinct shape? o In 1-2 sentences, provide a description of the movements with which it is involved. o Why would exercises such as crunches, increase its strength and external visibility.

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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1. Which abdominal muscles have the unique "6-pack" structure?
   - What features associated with these muscles give them their distinct shape?
   - In 1-2 sentences, provide a description of the movements with which they are involved.
   - Why would exercises such as crunches increase their strength and external visibility?

2. There are three other abdominal muscles. For each, provide the following information:
   - Position relative to the skeleton.
   - Position relative to the other abdominal muscles.
   - Muscle fiber orientation.
   - Function.

3. What are the boundaries of the perineum? What are the two regions that form the perineum?

4. Which muscles form the pelvic floor, and which of these are included in the levator ani group? For each muscle, provide the following information:
   - Position relative to the skeleton.
   - Position along the pelvic floor.

5. Which perineal muscles differ due to sex? For each muscle, describe how it differs in location and function depending on sex.

6. How are the muscles of the abdomen and pelvic floor related? *Hint: think about their general functions.*
Transcribed Image Text:1. Which abdominal muscles have the unique "6-pack" structure? - What features associated with these muscles give them their distinct shape? - In 1-2 sentences, provide a description of the movements with which they are involved. - Why would exercises such as crunches increase their strength and external visibility? 2. There are three other abdominal muscles. For each, provide the following information: - Position relative to the skeleton. - Position relative to the other abdominal muscles. - Muscle fiber orientation. - Function. 3. What are the boundaries of the perineum? What are the two regions that form the perineum? 4. Which muscles form the pelvic floor, and which of these are included in the levator ani group? For each muscle, provide the following information: - Position relative to the skeleton. - Position along the pelvic floor. 5. Which perineal muscles differ due to sex? For each muscle, describe how it differs in location and function depending on sex. 6. How are the muscles of the abdomen and pelvic floor related? *Hint: think about their general functions.*
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