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Endocrine system
are closely linked and work together to
Activity 3.1:
regulate physiological processes. The
Identifying the location of endocrine nervous system enables rapid, short-term
glands in the body, the hormones responses through electrical impulses, while
produced and their functions the endocrine system provides long-term
FOR ONLINE READING ONLY
regulation by releasing hormones into the
Materials
Model or chart showing human body bloodstream. Their coordination is essential
for various body functions, including
structure, and flash cards (with gland growth, metabolism, reproduction, and
names, hormones, functions)
stress management.
Procedure
Observe the model or displayed picture The hypothalamus
of human body showing endocrine glands This is a bridge between the nervous and
and match the flash cards of gland name, endocrine systems. The hypothalamus,
hormone and function. a small yet significant part of the brain,
Questions plays a crucial role in integrating these
1. Describe the position of different two systems. It receives sensory input from
endocrine glands in the human body, different body regions and processes this
the hormones produced and their information to determine the appropriate
functions. physiological response. When hormonal
regulation is required, the hypothalamus
2. Tabulate the name of the glands, their
position in the human body, hormone communicates with the pituitary gland, to
produced and their functions. regulate hormone secretion.
Interaction between endocrine and Key aspects of interaction
nervous system Hypothalamus-pituitary axis
The hypothalamus influences the pituitary
Task 3.2 gland through the release of neurohormones,
Search for information from the library which either stimulate or suppress the
and internet sources on the interaction secretion of regulatory hormones. These
between nervous system and endocrine hormones, in turn, control the activity of
system other endocrine glands, such as the thyroid,
adrenal glands, and gonads. For instance:
The human body relies on two main
regulatory systems to maintain internal (i) The hypothalamus releases
balance and respond effectively to thyrotropin-releasing hormone (TRH),
external changes: the nervous system and which prompts the pituitary gland to
the endocrine system. Although these produce thyroid-stimulating hormone
systems function independently, they (TSH). This hormone then signals
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BIOLOGY FORM 3 FINAL EDITED 16.09.2025.indd 65
BIOLOGY FORM 3 FINAL EDITED 16.09.2025.indd 65 KAMISHNA 23/10/2025 11:52:41
KAMISHNA
