Which major cavity subdivision has no bony protection?

The correct answer is (C) abdominal. The ventral cavity contains the abdominopelvic and thoracic cavities.

Which body cavities are protected by bony walls?

The thoracic cavity (or chest cavity) is the chamber of the body of vertebrates that is protected by the thoracic wall (rib cage and associated skin, muscle, and fascia).

Which body cavity is least protected from trauma?

Organs are defined as either solid or hollow. Solid organs include the spleen, liver and pancreas, and generally bleed when injured. Hollow organs, including the stomach, intestines, bladder and gallbladder, spill their contents into the abdominal cavity (also called peritoneal cavity) when injured.

What protects the ventral cavity?

Both the organs and the ventral cavity walls are lined with peritoneum, a thin membrane which separates the cavity from the inside of the body. The organs are also lined with a peritoneum, protecting them from rubbing on the inside of the cavity.

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Which body cavity is totally surrounded by bone?

Dorsal body cavity–the cranial cavity and the spinal cavity in combination. Cranial cavity–the space occupied by the brain, enclosed by the skull bones. Spinal cavity–the space occupied by the spinal cord enclosed by the vertebrae column making up the backbone. The spinal cavity is continuous with the cranial cavity.

Which of the following is a subdivision of the ventral body cavity?

The anterior (ventral) cavity has two main subdivisions: the thoracic cavity and the abdominopelvic cavity (see Figure 4).

Which of the following body cavities is not found within the ventral cavity?

The only cavity that would not be considered the ventral body cavity is the spinal cavity. This would be consistent with answer choice “A”. The spinal cavity would be considered the dorsal cavity.

Which cavity contains the three tiny bones involved in hearing?

Middle ear (tympanic cavity) , consisting of: Ossicles. Three small bones that are connected and transmit the sound waves to the inner ear.

What are bony landmarks of the abdominopelvic cavity?

The bony landmarks of the abdominopelvic cavity are the spine and pelvic bones.

What cavity houses the spinal cord?

The posterior (dorsal) and anterior (ventral) cavities are each subdivided into smaller cavities. In the posterior (dorsal) cavity, the cranial cavity houses the brain, and the spinal cavity (or vertebral cavity) encloses the spinal cord.

What separates the ventral cavity into two subdivisions?

Sabrina reminds Margie that the ventral cavity is broken down into two divisions: The thoracic cavity, which is the chest cavity that is separated from the lower parts by the diaphragm. The mediastinum houses the esophagus, trachea, and the heart and its associated blood vessels.

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Is dorsal anterior or posterior?

Directional Terms

Anterior or ventral – front (example, the kneecap is located on the anterior side of the leg). Posterior or dorsal – back (example, the shoulder blades are located on the posterior side of the body).

What cavity is the heart in?

The heart and lungs are located in the thorax, or chest cavity. The heart pumps blood from the body to the lungs, where the blood is oxygenated.

What subdivisions exist for the posterior aspect?

Subdivisions of the Posterior (Dorsal) and Anterior (Ventral) Cavities. The posterior (dorsal) and anterior (ventral) cavities are each subdivided into smaller cavities. In the posterior (dorsal) cavity, the cranial cavity houses the brain, and the spinal cavity (or vertebral cavity) encloses the spinal cord.

What is a vertebral cavity?

The vertebral canal, otherwise known as the vertebral cavity or spinal cavity, is an anatomical space formed by the vertebral column that stores an integral portion of the central nervous system: the spinal cord and the spinal nerve roots branching off the spinal cord bilaterally.