No
The Chest or Thoracic cavity has to be opened to remove the lung lobe
An opening that allows access to a cavity or space is known as an entrance. It provides a point of entry for substances, objects, or organisms to enter the enclosed area.
Because the female reproductive tract is continuous with the peritoneal cavity through the fallopian tubes, it is possible for sperm to enter the peritoneal cavity.
A nutrient foramen is an opening in a bone through which blood vessels and nerves enter and exit to supply the surrounding tissues with nutrients and sensation. These openings are crucial for maintaining the health and function of bones by allowing for appropriate blood supply and nerve communication.
The twelfth cranial nerve is the hypoglossal nerve. It is responsible for controlling the muscles of the tongue, allowing for movements necessary for speech and swallowing. Damage to this nerve can lead to difficulties with tongue movement and speech articulation.
Yes. Dehorning older cattle leaves an opening to the sinus cavity. This may become infected if bacteria enter this hole. Luckily this is easily treatable with antibiotics.
Afferent nerve fibers enter the spinal cord through the dorsal roots.
The Nasal Cavity
A digestive chamber with one opening is called a "gastrovascular cavity." This structure serves both digestive and circulatory functions, allowing food to enter and waste to exit through the same opening. Organisms with this type of digestive system, such as jellyfish and flatworms, typically have a simple body plan and rely on diffusion for nutrient distribution.
The nasal bone cavity is called the nasal cavity. It is a large air-filled space behind the nose that acts as a passage for air to enter and exit the respiratory system.
Afferent impulses enter the spinal cord from the posterior section. They may get processed by interneurons. And, in most cases they exit the spinal cord through the efferent neurons in the anterior section. The reason that they refer to this as being opposite sides has to do with what are called the 'horns' inside the spinal cord. The afferent impulses enter the dorsal horns in the back and the efferent impulses exit in the front, the anterior horns. This may be why your reference, your teacher, or a book, says that impulses enter and leave from opposite sides of the spinal cord.