Final answer:
A laryngeal fracture, or close line fracture, can lead to respiratory distress, difficulties in breathing and swallowing, changes in voice, and pain localized to the site of the injury.
Step-by-step explanation:
A close-line fracture, otherwise known as a laryngeal fracture, produces signs such as respiratory distress, shortness of breath, wheezes or stridor, hoarseness, pain with swallowing, and cough. This type of fracture can cause pain that is felt directly over the fracture, but the intensity of the pain may make it difficult to pinpoint exactly where it originates. The injury may shrink the distance between the thyroid cartilage and the hyoid bone, which can interfere with the normal function of the voice box and swallowing (deglutition), leading to high-pitch vocalizations or difficulty in protecting the airway during food intake.