Fig. 28.1. Sternothyroid muscle and thyroid gland. Uultrasound anatomy.
A - Anterior view. B - Right lateral view. Origin - posterior surface of the presternum and first rib. Insertion - oblique line of the thyroid cartilage. Numbers indicate anatomical structures and structural elements in fig.28.1-28.3. Cartilago thyroidea - cornu superius (1), ñartilago thyroidea - lamina (2), cartilago thyroidea - linea obliqua (3), costa I (4), manubrium sterni (5), incisura clavicularis (6), incisura costalis I (7), glandula thyroidea (8).
Fig. 28.2. Origin of sternothyroid muscle. A - Anterior view. B - Right lateral view.
Fig.28.3. Insertion of sternothyroid muscle. A - Anterior view. B - Right lateral view.
Fig.28.4. Transverse echograms of the fore-part of the neck performed at the level of the sternothyroid muscle and their schematic representations. Normal.
Section No.1 - at the level of the upper thyroid poles.
Section No.2 - at the level of the cricothyroid membrane.
Section No.3 - at the level of the thyroid isthmus.
Section No.4 - at the level of the lower thyroid poles.