Muscular Triangle: Cervical Part Trachea

Question 1

Beginning

Answer 1

Begins at cricoid cartilage lower border (C6 level)

Question 2

End

Answer 2

Inside thorax at T4 lower border

Question 3

Relations: anterior

Answer 3

1. Skin
2. Fascia
3. Muscles:
   - Sternohyoid
   - Sternothyroid
4. Thyroid gland isthmus
5. Blood vessels
   - anastomoses between superior thyroid arteries, thyroid ima artery, thyroid veins, and jugular arch
6. Paratracheal lymph nodes

Question 4

Relations: posterior

Answer 4

1. Esophagus
2. Recurrent laryngeal nerves

Question 5

Relations: on each side

Answer 5

1. Thyroid gland lobe
2. CCA
3. Inferior thyroid artery