Different layers of deep cervical fascia is marked in the cross section. Which of the following statement is true?
A - PREVEEBRAL LAYER, B - INVESTING LAYER. C - PRETRACHEAL LAYER Axillary sheath develops from Preveebral layer (A) Carotid sheath is derived from contribution by all layers of deep cervical fascia. Parotid sheath is derived from investing layer. Thyroid sheath is derived from pretracheal layer. Investing layer covers trapezius and sternomastoid.
Axillary sheath is derived from B
Parotid sheath is derived from C
C represents Pretracheal fasica
C covers trapezius and sternocleidomastoid
Neck Triangles and parotid gland