Question

Fill in the blanks with the correct alternative from those given in the brackets.

Cortex and medulla are two region of ____________ gland. (thyroid/adrenal)

Answer 1

Cortex:

1. The adrenal cortex is an exterior, solid, pale yellow tissue derived from the embryonic mesoderm of the adrenal gland.
2. It has three concentric layers, namely the inner, middle, and outer layers.
3. These layers releases hormone called corticoids.

Medulla:

1. The medulla of the adrenal gland is located at the center of the gland.
2. It is an ectoderm-derived interior soft, dark reddish-brown tissue.
3. It produces two hormones:

• Adrenaline
• Noradrenaline

Final answer: The cortex and medulla are two regions of the adrenal gland.