The sectional plane that separates the thorax from the abdomen is the transverse plane, specifically at the level of the diaphragm. The diaphragm is a dome-shaped muscular structure that forms the boundary between the thoracic cavity, which houses the lungs and heart, and the abdominal cavity, which contains digestive organs. This plane is crucial for understanding the organization of the body's cavities in anatomy.
In humans and other mammals the thorax and abdomen are separated by a sheet of muscle called the diaphragm. In insects like wasps and bees where there is a narrow region between the thorax and the abdomen this is called the petiole.
The horizontal plane divide the upper part from the lower part. You do not have any specific point through the plane passes. Tentatively you can divide upper part from thorax onwards from the lower part, which include the abdomen. But there is not a single plane, which will divide the body into upper and lower parts.
A transverse sectional plane would divide the body so that the face remains intact. This plane runs horizontally, separating the body into upper and lower sections.
The transverse plane separates the abdomen from the pelvic cavities. This plane runs horizontally across the body, dividing it into upper and lower portions.
The x and y axes separate the coordinate plane into 4 quadrants.
The axes separate the plane into four quadrants.
A full sectional view displays an object as if it has been cut completely through along a specific plane, revealing the internal features in detail. In contrast, a half sectional view shows the object cut along a plane but only illustrates half of the interior, while the other half remains in its original view. This allows for a clearer representation of complex shapes while still highlighting internal details. Both views are used in technical drawings to provide insight into the structure and design of an object.
An equilateral 1 inch triangle is a plane figure and it does not have a cross-sectional area in any meaningful sense, just an area. Its area is 0.43 = sqrt(3)/4 square inches.
It is the area of the plane (the surface) covered by the water in the river channel. It is the product of the width of the channel, and the average depth of the river
The process you're referring to is called serial sectioning. It involves cutting an object or tissue into thin slices (sections) to examine its internal structures layer by layer.
Cross-sectional views are typically produced by slicing an object along a plane perpendicular to its axis. This allows for a detailed examination of the internal structure and features of the object. Technologies such as computerized tomography (CT) scans, magnetic resonance imaging (MRI), and engineering drawings are commonly used to create cross-sectional views.
Sectional views are used to shows the internal detail of an object. The drawing will show the interior part of an object as if it was cut in half or quartered. essentially a flat plane passed through a 3 dimentional object highlighting all the internal detail