Final answer:
The cricoid cartilage is the structure connected to the bottom part of the larynx, providing support and attachment to the esophagus.
Step-by-step explanation:
The cricoid cartilage is connected to the bottom part of the larynx. This cartilage forms a ring-like structure that has a wide posterior region and a thinner anterior region. It is located inferior to the thyroid cartilage and superior to the trachea, providing structural support for the larynx. The cricoid cartilage is attached to the esophagus and serves as an important part of the air passage to the lungs.