CHAPTER 17
Endocrine System
327
Figure 17-1.
Overview and orientation of detailed endocrine organ illustrations.
The illustration on the
left
shows the location of the
endocrine organs
, which include the
pituitary gland
,
pineal gland
,
thyroid gland
,
parathyroid glands
,
adrenal glands
,
endocrine pancreas
(islet of Langerhans),
testes
(see Chapter 18, “Male Reproductive System”),
and
ovaries
(see Chapter 19, “Female Reproductive System”). The
pituitary
and
pineal glands
are neuroendocrine organs; they are
located inside the skull and are considered part of the brain. The
thyroid gland
has two lobes and is located inferior to the thyroid
cartilage and anterior to the trachea. There are four
parathyroid glands
located behind (posterior to) the thyroid gland. The
adrenal
glands
and
pancreas
are located in the abdominal cavity. The
islet of Langerhans
is the endocrine portion of the pancreas. The
ovaries
and
testes
produce sex-related hormones and also are part of the reproductive system; the details are discussed in Chapters 18 and 19.
The illustration on the
right
shows the orientation of detailed endocrine organ illustrations presented in different ± gures.
Hypothalamus
Pituitary
gland
Thyroid
gland
Adrenal
gland
Testis
Parathyroid
gland
(behind thyroid)
Pancreas
Ovary
Pineal
gland
Pineal
gland
A
B
Fig. 17-13A,B
Fig. 17-14A to
Fig. 17-15B
Fig. 17-10A to
Fig. 17-12B
Fig. 17-3B to
Fig. 17-6B
Fig. 17-8A,B
Fig. 17-9A,B
Endocrine Organs with Figure Numbers
Pituitary glands
Figure 17-2
Figure 17-3A
Figure 17-3B
Figure 17-3C
Figure 17-4A
Figure 17-4B
Figure 17-5A
Figure 17-5B
Figure 17-6A
Figure 17-6B
Figure 17-7A–C
Thyroid glands
Figure 17-8A
Figure 17-8B
Figure 17-8C
Parathyroid glands
Figure 17-9A
Figure 17-9B
Figure 17-9C
Adrenal glands
Figure 17-10A
Figure 17-10B
Figure 17-11A
Figure 17-11B
Figure 17-12A
Figure 17-12B
Pineal glands
Figure 17-13A
Figure 17-13B
Figure 17-13C
Endocrine pancreas (islet of Langerhans)
Figure 17-14A
Figure 17-14B
Figure 17-15A
Figure 17-15B
Figure 17-16
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