Either of a pair of complex endocrine organs near the anterior medial border of the kidney consisting of a mesodermal cortex that produces glucocorticoid, mineralocorticoid, and androgenic hormones and an ectodermal medulla that produces epinephrine and norepinephrine[BTO].
ala of nose
alisphenoid bone
angular bone
antenna +
anterior thoracic air sac
appendage girdle complex +
aryepiglottic fold
arytenoid cartilage +
atlanto-occipital joint +
branch of Y-shaped fibrocartilage skeleton of ventral pouch