The Morphometric Study of Main Bronchus in Korean Cadaver / 체질인류학회지

This morphometric study of main bronchus was performed to provide the basic data necessary for anatomists, anesthetists and emergency medical technicians. A total of 48 cadavers, 33 men and 15 women, were used in this study. When it comes to their average age, men were 70 years old (50 to 91 years old), and women were 74 years old (47 to 92 years old). For this study, the length of the left and right main bronchi and the angle between them, and the first bronchial cartilage's each anteroposterior diameter, transverse diameter, vertical height, and distance between posterior ends of cartilage were measured. As for the length, left length was longer than right length regardless of gender, and there was no significant difference between men and women. When it comes to anterorposterior diameter, transverse diameter, and distance between posterior ends of the first bronchial cartilage in main bronchi, the right side was longer and wider than left side regardless of gender, but statistical significance was shown only in the distance between posterior ends of cartilage. Vertical height of the first bronchial cartilage in main bronchi did not show any difference between the left and right and between men and women, and men cadavers had a very large individual difference from 2.35 mm to 9.22 mm. As for the angle of the main bronchi's separation from trachea's major axis, the left side was larger than the right side in both men and women cadavers and it was larger in men than women, but there was no significant statistical difference. Lastly, as for the length of the main bronchi, the right and left lengths in men were 16.83±1.36 and 37.26±1.42 mm respectively; and the right and left lengths in women were 16.90±2.26 and 36.08±3.39 mm respectively. These results are expected to be used as the basic clinical data useful for medical procedures of emergency care practitioners, anesthetists and emergency medical technicians.

Morphometric Study of Cricoid Cartilage in Korean / 체질인류학회지

This study is aimed to measure the morphology of Korean cricoid cartilages. A total of 48 - 33 males and 15 females - cadavers were used in this study. When it comes to their average age, males were 70 years old (50 to 91 years old), and females were 74 years old (47 to 92 years old). For this study, anteroposterior diameter and transverse diameter of superior side, anteroposterior diameter of inferior side, height of arch and lamina, anterior and posterior thickness of cricoid cartilages were measured. Anteroposterior diameters of superior and inferior cricoid cartilage were 28.5, 18.78 mm in male, and 23.85, 15.97 mm in female, respectively. And transverse diameters of superior side were 17.19 mm in male and 13.36 mm in female. Heights of arch and lamina were 7.10, 22.33 mm in male and 5.72, 20.10 mm in female, respectively. Thickness of anterior arch and posterior lamina were 2.57, 2.83 mm in male and 2.22, 2.42 mm in female, respectively. As a result, most Korean male measurements were significantly longer than female measurements except the anterior and posterior thickness of cricoid cartilages. Moreover the majority of measurements were shorter than Nigerians or Europeans. However, they were very similar to American Indians' measurements. In conclusion this study stated above can be a valuable foundation for the research of Korean cricoid cartilages' anatomic structures and morphology.

Morphometric Study of the Trachea in Korean / 체질인류학회지

This morphometric study of the trachea was performed to provide the basic data necessary for shielding crico-thyroid membrane incision, tracheal intubation and tracheotomy in korean bodies 48 (33 male, 15 female). Tracheal measurement included the number, the length, the anteroposterior and transverse diameters of trachea, and the height of tracheal cartilages, and the inter-rings distances of cartilages. The length of trachea was 104.0+/-1.4 mm in male and 102.3+/-1.9 mm in female, but there was no significance between males and females. All of the anteroposterior and transverse diameters, and the height were longer in males, compared with females, in the first, fifth, tenth and fifteenth tracheal cartilages. The anteroposterior and transverse diameters of the first and fifteenth tracheal rings, and the height of the first tracheal ring differed significantly male's from female's. The distances between posterior end of rings of the first, tenth and fifteenth tracheal cartilages were broader in males. The inter-rings distances of tracheal cartilage were also wider in the male, and showed significant differences in the 1st~2nd and 10~11th. These results suggest that this might be useful as a clinical basic data for the emergency physician, anesthetist, and associated medical doct