Human neck structure

The structure of the human neck is very strange, because the neck is very important and can support our head. There is a lot of cartilage in this area, so this area is also very important when it is injured and must be taken seriously. There are also many blood vessels in this area of ​​the neck, and our most critical arteries are also in the neck. So what is the structure of the human neck?

All the skin on the left half of the head and neck was removed, exposing the blood vessels and nerves in the scalp, which almost all came from the outside and did not pass through the skull. They injected colored latex into the blood vessels, red for arteries and blue for veins. The structures within the neck are still surrounded by a tough layer of tissue known as the cervical fascia. Bessette used a homemade preservative solution to better preserve the pigmented tissues.

A deep dissection of the left side of the brain reveals the numerous blood vessels (arteries in red, veins in blue) and nerves (off-white) in the face. The hole in the head is the external auditory canal. On the left side of the skull, the temporalis muscle used for chewing is the prominent, fan-shaped muscle located behind the mouth and above the jaw.

After the outer layer of tissue surrounding the jaw bone is removed through dissection, the mandibular teeth and blood vessels and sensory nerves in the jaw are exposed. .

Inside the spinal column, cut in half vertically, is the spinal canal. The brown material is bone; the white material is the discs that can sometimes "rupture" and cause back pain. A horizontal section is cut on the left to show the connection between the sacrum (a triangular bone at the base of the spine) and the pelvis.

An elbow joint is exploded to show the relationship between the humerus, the top bone of the upper arm, and the two forearm bones, the radius and ulna.

It features two rows of four interconnected wrist bones, showing how these bones are connected to the forearm and fingers.

The mediastinum (an important thoracic membrane between the lungs) covers the heart. The blood vessel directly connected to the right ventricle is the aorta, which is the largest artery in the human body. To the right of the aorta is a group of blood vessels (an artery and two associated veins) that run between the ribs and carry blood to all parts of the body. The phrenic nerve (which transmits breathing commands to the diaphragm) passes vertically through the heart.