In terrestrial mammals, the movements for ventilation are governed by:
Correct answer: D. Diaphragm
- A. Abdominal muscles
- B. Biceps
- C. Skeletal muscle
- D. Diaphragm
Explanation
The diaphragm is a dome-shaped muscle located below the lungs that plays a crucial role in the process of ventilation, specifically in inhalation. When the diaphragm contracts, it moves downward, expanding the thoracic cavity and creating a vacuum that draws air into the lungs. The diaphragm is a muscle that helps you inhale and exhale (breathe in and out). This thin, dome-shaped muscle sits below your lungs and heart. It's attached to your sternum (a bone in the middle of your chest), the bottom of your rib cage, and your spine
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About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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