Video Transcript
The diagram provided shows a basic
outline of the pituitary gland. What two parts is the pituitary
gland divided into? (A) Frontal and parietal, (B)
cortex and medulla, (C) anterior and posterior, or (D) upper and lower.
This question asks us about the
pituitary gland, which is located just under the human brain. This gland is only about the size
of a pea, but it’s often referred to as the master gland. This is because the pituitary
hormones control many important endocrine glands in the body. On this side view of the brain, we
can see that the pituitary gland is attached to the hypothalamus by a structure
called the infundibulum.
We can also see that the pituitary
gland divides into two lobes. The lobe that is directly attached
to the brain by the infundibulum contains the terminals of neurons located in the
hypothalamus. This lobe is a storage place for
the hormones produced by these neurons. The other lobe, however, is made of
endocrine cells that directly produce and secrete their hormones.
There are different names given to
these two lobes. Based on their structure, they can
be called neurohypophysis and adenohypophysis. Or more simply, according to their
position in the brain, they can be called posterior and anterior.
Therefore, the correct answer is
(C), anterior and posterior.
