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Anatomy week 6
| Question | Answer |
|---|---|
| what are the four pairs of muscles that act together to compress the abdominal contents? | The four pairs of muscles that act together to compress the abdominal contents are The Rectus Abdominis, External Oblique, Internal Oblique, and Transversus Abdominis. |
| How do the fiber (fascicle) directions of these muscles contribute to the strength of the abdominal wall? | Muscle fiber orientation strengthens the abdominal wall. Transversus Abdominis fibers run horizontally, External Oblique fibers diagonally, and Rectus Abdominis vertically. This provides stress-resistance and multidirectional support. |
| Which of these four muscles is the strongest flexor of the vertebral column? | The Rectus Abdominis is the strongest flexor of the vertebral column. |
| Why is maintaining a low body fat percentage important for a visible "6-pack"? | High body fat covers the abdominal muscles that create the six-pack appearance.. Thus, to make a "6-pack" visible, it is important to maintain a low body fat percentage through a balanced diet and regular exercise. |
| What is the role of the Internal Oblique muscles? | The Internal Oblique muscles flexes and bends the trunk, assists forced expiration by depressing the lower ribs, and helps to maintain intra-abdominal pressure in defecation, micturition and childbirth. |
| What is the prime mover of inhalation (inspiration) in breathing? | The diaphragm is the prime mover of inhalation (inspiration) in breathing. |
| How does understanding the abdominal muscles relate to building muscle mass? | The abdominal muscles, when trained and strengthened through specific exercises, can increase in muscle mass, contributing to overall strength, stability, and a more defined physical appearance. |
| What role does the Rectus Abdominis muscle play? | The Rectus Abdominis muscle, often referred to as the "six-pack", runs vertically along the front of the abdomen. Its primary functions include flexing the spinal column, assisting in respiration, and aiding in the compression of the abdominal contents. |
| Describe the function of the Transversus Abdominis muscle. | The Transversus Abdominis muscle is responsible for maintaining proper placement of the abdominal contents as well as helping support the lower back. |
| How does a balanced diet contribute to achieving a "6-pack"? | A balanced diet is essential for reducing body fat and revealing muscle definition. It should include a proper mix of proteins for muscle repair and growth, carbohydrates for energy, and healthy fats for satiety. |
Created by:
Masani16
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