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The pelvis is separated from the abdomen by the pelvic brim, which is a bony structure formed by the sacrum, coccyx, and hip bones. This boundary is important because it houses and protects reproductive organs and the bladder within the pelvic cavity, while the abdominal cavity contains digestive organs such as the stomach and intestines.
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What are the differences between thoracic and abdominal cavity?
The thoracic cavity contains the heart and lungs, while the abdominal cavity houses the digestive organs such as the stomach, liver, and intestines. The thoracic cavity is separated from the abdominal cavity by the diaphragm muscle. The thoracic cavity is enclosed by the rib cage, while the abdominal cavity is not.
What is diaphragm made of?
The diaphragm is made of a thin, dome-shaped muscle that separates the chest cavity from the abdominal cavity. It is primarily composed of skeletal muscle fibers and connective tissue.
What is the function of a diaphrgam?
The diaphragm is a dome-shaped muscle that plays a crucial role in the process of breathing by contracting and relaxing to create a vacuum that draws air into the lungs. It separates the thoracic cavity from the abdominal cavity and aids in regulating pressure within the chest during respiration.
The thoracic cavity is surrounded by a stiff rib cage while the abdominal cavity has a softer muscular wall Why?
The rib cage is composed of ribs and sternum, forming a protective structure around the thoracic cavity to safeguard vital organs like the heart and lungs. In contrast, the abdomen relies on muscles like the rectus abdominis and transverse abdominis for support and protection because these structures require more flexibility for functions like digestion and movement.
What are empty spaces within the body called?
Empty spaces within the body are commonly referred to as cavities. These include the cranial cavity (housing the brain), thoracic cavity (housing the heart and lungs), and abdominal cavity (housing the digestive organs). These cavities help protect and support the internal organs.
