body Cavities

The person body is separated into 2 portions: the axial and the appendicular. The axial portion includes the head, neck, and also trunk when the appendicular portion has the upper and lower limbs. Body cavities compartmentalize the internal body environment and also are lined by membranes. They contain multiple organs within every cavity.

Image 1: human body Cavities

1. Dorsal Cavity – protects offal of the worried system and has 2 subdivisions:

Cranial cavity – encloses the brain Spinal cavity (also termed vertebral cavity) - encloses the vertebral column and the spinal cord.

2. Ventral Cavity – consists of subdivisions of the upper and lower trunk:

Thoracic cavity – surrounding by the ribs and also chest muscles. Subdivided into: Mediastinum –contains the pericardial cavity Pericardial cavity – has the heart, trachea, and esophagus. Pleural cavities – includes the lungs. Abdominopelvic cavity – native the diaphragm come the reduced floor the the pelvis. Includes two subdivisions: Abdominal cavity – has the liver, stomach, spleen, kidneys, and also intestines. Pelvic cavity – contains the bladder and reproductive organs.

You are watching: The dorsal body cavity is divided into which of the following subdivisions?

membrane of body Cavities

The wall surfaces of the ventral body cavity and outer covering of its offal contain a thin covering called the serosa (also termed serous membrane).

Serous Fluid: between the serous membrane is a slim layer the fluid dubbed serous fluid that acts together a lubricant, enabling organs to relocate within the cavity without resulting in friction. Serous fluid is secreted by both membranes. (In Image 2 wherein the air space is labeled is where serous fluid can it is in found).

Naming of Serous Membranes: The naming of these membranes is excellent according come the cavity and also organ they combine with. An instance is the parietal pericardium i m sorry lines the pericardial cavity.

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(See Image 2)


Image 2: example of Pericardial body Cavity Membrane

Check for understanding: -What is the objective of serous fluid and where is the found? answer

-The serosa the lines the human body cavity wall surface is called the _______ serosa while the membrane lining the guts is the ________ serosa. Prize