Science 10

1. LEARNING COMPETENCY:
Describe the parts of the nervous, endocrine
and reproductive systems and their functions.
(S10LT-IIIa-33).
•Identify the major endocrine glands in the
human and their functions.
LEARNING OBJECTIVES:
•Explain the importance of each hormone
produce by the endocrine glands.

2. ENDOCRINE SYSTEM

3. RECALL…

4. Identify and
give a brief
description of
the parts of
neuron

5. Identify and
give a brief
description of
the parts of
neuron
DENDRITES AXON
CELL BODY
carry impulses
towards the cell body
carry impulses away
from the cell body
made up of
cytoplasm and
nucleus
Root-like
structures

6. Direction: Hidden in the word puzzle are the five endocrine glands and five
hormones. Look for the words andWrite it on your paper
A Z I O D I N E X Y
A D R E N A L I N E
T P R O M I N E W I
H A S E Q D L K F N
Y C P A N C R E A S
M D G U H A B K J U
U P I N E A L G L L
S F T H Y R O I D I
C A L C I T O N I N
•What are the different glands you found from the puzzle?
•Which gland are you familiar with?

7. Direction: Hidden in the word puzzle are the five endocrine glands and five
hormones. Circle each of them and write it on the board.
A Z I O D I N E X Y
A D R E N A L I N E
T P R O M I N E W I
H A S E Q D L K F N
Y C P A N C R E A S
M D G U H A B K J U
U P I N E A L G L L
S F T H Y R O I D I
C A L C I T O N I N
•What are the different glands you found from the puzzle?
•Which gland are you familiar with?

8. “Who’s inControl? “
Activity 3

9. Identify the major endocrine glands
in the human body and their
functions
Study each picture that depicts
the involvement of a particular
gland in the endocrine system.
Write down the name of the
endocrine gland and explain its
effect, according to its function.
OBJECTIVES
PROCEDURE

15. The endocrine system consists of
glands that secrete chemicals called
hormones that control various body
processes.
This control system usually brings
about slow changes in the body because
hormones move through the circulatory
system more slowly than the nerve
impulses.

16. The major glands in the
body are the pituitary,
thyroid, parathyroid,
thymus, adrenal,
pancreas, ovaries and
testes.

19. It regulates the metabolism of the body.
EXAMPLE:
See pages 242-243

20. Guide
Questions:
Q1.Which gland of the endocrine and
nervous system controls the other glands
in the body?
Q2. How will you differentiate thyroid and
parathyroid glands in terms of location
and function?
Q3. If a person’s blood sugar level becomes
unstable, what glands might be involved
in the problem?
Q4. How important is the thymus gland in
keeping your body free from diseases?

21. Guide
Questions:
Q5.What might happen to a person born
without gland?
Q6. How will you explain the sudden boost
of energy, increased
strength and extra ordinary ability to lift
very heavy objects especially during
emergency situations?
Q7.Why is injecting insulin essential in the
daily routine for most people with
diabetes?

22. GROUP
ACTIVIT
Y

23. GROUP
PRESENTATIO
N

24. Answers
1. Ovaries - Secrete more progesterone
and estrogen to maintain pregnancy
2. Adrenal Gland -Produces adrenaline to
activate short-term stress response
3. Pituitary Gland -Produces growth
hormones
4. Thymus Gland- Secretes thymosin to
stimulate production ofT- cells against
infection
5. Pancreas -Secretes insulin that
regulates blood sugar levels

25. Guide
Questions
/Answers:
Q1.Which gland of the endocrine and nervous
system controls the other glands in the body?
Q2. How will you differentiate thyroid and
parathyroid glands in terms of location and
function?
The pituitary gland controls the output of other
glands in the body.
The thyroid gland is located below the voice box
and regulates body metabolism by producing
calcitonin that reduces blood calcium level; while
parathyroid gland is located on the thyroid
glands and produces parathormone that increases
blood calcium levels and normalizes bone growth.

26. Answer
Guide
Questions:
Q3. If a person’s blood sugar level becomes
unstable, what glands might be involved in the
problem?
Q4. How important is the thymus gland in
keeping your body free from diseases?
The person’s pancreas is possibly involved
when blood sugar level becomes unstable.
The thymus gland enables the body to
produceT- cells that help in fighting
infections and diseases.

27. Q5. What might happen to a
person born without gland?
A person born without a thymus gland
will not develop an adaptive immune
system and may eventually die.
Guide
Questions
/Answers:

28. Q6. How will you explain the sudden boost
of energy, increased strength and extra
ordinary ability to lift very heavy objects
especially during emergency situations?
The adrenal gland produces adrenaline
that enables the body to have the
energy in doing incredible work during
emergency situations.
Guide
Questions
/Answers:

29. Q7.Why is injecting insulin essential in the
daily routine for most people with
diabetes?
Because the diabetic person’s
pancreas does not produce enough
insulin for the body, insulin injections
must be administered to the person’s
body to regulate blood sugar levels.
Guide
Questions
/Answers:

30. 1.Why does the menstrual cycle stop during
menopause?
During menopause there is a
significant change of hormone levels
produced by the ovaries which
eventually stops the menstrual cycle.
Elaborate:

31. 2. How do oral contraceptives, especially
birth control pills, prevent pregnancy?
 Birth control pills contain hormones that
control the functioning of the ovaries and the
uterus. Most pills have the combination of the
hormones estrogen and progesterone to
prevent ovulation (the release of an egg
during the monthly cycle).
Elaborate:

32. 3. Breastfeeding releases oxytocin and
prolactin, hormones that relax the mother
and she feels more nurturing toward her
baby. On the other hand, how does the baby
benefit from the production of these
hormones in the mother’s body?
Oxytocin and prolactin enable
milk production that provides the
required nourishment for the baby.
Elaborate:

33. What are the different glands
and hormones that comprise the
endocrine system? Describe its
function.
Elaborate:

34. Evaluation

35. B. Pancreas
Direction: Choose the letter of the best
answer.
1.When a diabetic person cannot regulate
its blood sugar level, which gland fails
to perform the function of regulating
sugar level on our blood?
A. Adrenal B. Pancreas
C.Thymus D.Thyroid

36. A. because of
the adrenaline
being released
by theAdrenal
gland
2.Why do we able to lift heavy objects
during emergency situations such as
fire?
A. because of the adrenaline being
released by theAdrenal gland
B. bacause the Pancreas stored
pancreatic juice which is important
during emergency situation
C. bacause of the parathormone stored
in the Parathyroid gland
D. bacause the brain produces Pituitary
gland which dictates on the right thing to
do

37. A. Pituitary
3. Every year your height increase
by half an inch.Which gland
stimulates growth?
A. Pituitary B. Pancreas
C. Parathyroid D. Thymus

38. B. Parathyroid
4.We need to drink milk to have
healthy bones through enough
storage of calcium in our
bones.Which gland performs
this function?
A. Pancreas B. Parathyroid
C.Thymus D.Thyroid

39. D.Thymus
5. If you want to be free from
sickness, which gland can
produce certain antibodies
to prevent us from being
sickly?
A. Pancreas B. Parathyroid
C. Pancreas D.Thymus