5. MUSCULAR SYSTEM
The muscles give the body
shape and mass. They support
the skeleton and keep it
steady. They are also
responsible for body movement.
Muscles enable you to stand,
walk, run and dance.
6. MUSCULAR SYSTEM
There are about 640 muscles
in the body which are
responsible for the different
types of movements. There
are muscles that move joints.
7. MUSCULAR SYSTEM
There are muscles that draw
the body inwards and
muscles that draw the body
outwards.
8. MUSCULAR SYSTEM
There are muscles that raise
parts of the body and lower
the parts of the body. There
are long and short muscles as
well as big and small muscles.
10. Structure: Skeletal muscles
consist of elongated,
cylindrical fibers that are
multinucleated and
display a striped
appearance known as
striations. These muscles
are connected to bones
through tendons.
SKELETAL MUSCLES
11. Control: These muscles
are under voluntary
control, meaning that
movements are
consciously regulated
by the nervous system.
SKELETAL MUSCLES
12. Function: Skeletal muscles
play a crucial role in body
movements like walking,
lifting, and maintaining
posture. Additionally, they
produce heat when
contracting, aiding in
regulating body
temperature.
SKELETAL MUSCLES
13. Examples: Some
examples of skeletal
muscles include the
biceps brachii,
quadriceps, and
pectoralis major.
SKELETAL MUSCLES
14. Structure: Cardiac muscle
fibers are striated,
branched, and
interconnected by
intercalated discs which
facilitate synchronized
contraction. They are usually
mononucleated.
CARDIAC MUSCLE
15. Control: Involuntary control,
regulated by the autonomic
nervous system and
hormones.
Function: Pumps blood
throughout the body by
contracting the heart.
Location: Found exclusively
in the walls of the heart.
CARDIAC MUSCLE
18. Function: Moves
substances through the
body's internal
passageways, regulates
the diameter of blood
vessels, and controls the
contraction of organs
such as the stomach,
intestines, and bladder.
SMOOTH MUSCLES
19. Examples: Muscles in
the walls of the
digestive tract, blood
vessels, and urinary
bladder.
SMOOTH MUSCLES
20. Ways to make your muscular
system healthy.
1 .Eat a balanced diet.
2. Exercise regularly.
3. Have enough rest.
21. Directions: Look at the illustration.
Identify the kinds of muscles as
shown below.
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A C T I V I T Y 1
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23. Directions: Complete the table
below by comparing the 3 kinds
of muscles according to
appearance, type of
movements, location and
examples. No.1 is done for you.
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A S S E S S M E N T
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24. @Sir Ims
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A S S E S S M E N T
@Sir Ims
Kinds of
Muscles
Appearance
Types of
Movements
Location Examples
1. Cardiac
Muscles
Thick,
strong
Contractin
g and
relaxing
heart heart
2. Smooth
Muscles
3. Skeletal
Muscles
26. R E V I E W
Direction: Complete the
concept map below by
providing the main functions
of the muscular system to the
bubbles that are connected
to the central bubble
labeled "Muscular System".
30. The human body is made up of
different kinds of bones. These
bones are called skeleton. The
human skeleton is the internal
framework of the body. The adult
human skeleton consists of 206
bones that are connected to one
another by ligaments.
31. At birth, infants have around 300
bones fused together when they
become adults. These bones
work together as a system called
a skeletal system. The skeletal
system serves as the framework
of the body.
32. Its major functions are body
support, facilitation of
movement, protection of internal
organs, storage of minerals and
fats, and blood cell formation.
33. The skeletal system is mainly
composed of bones which are
classified into two divisions, the
axial and the appendicular
skeleton.
SKELETAL SYSTEM
34. The axial skeleton includes the
skull, vertebral column, ribs, and
sternum. These bones form the
axes or framework of the trunk
and head.
SKELETAL SYSTEM
39. One of the axial skeletons is the
skull which consists of cranium
and facial bones. The cranium is
made up of eight bones joined
together to form a rigid case that
protects the brain.
SKELETAL SYSTEM
40. The face is made up of 14 facial
bones. The eye socket protects
the eyeball while mandible or
jawbone is movable bone that
holds the teeth.
SKELETAL SYSTEM
41. The spinal column or vertebrae
(neck and backbone) are irregular
bones that protect the spinal cord
while the ribcage protects the
lungs and the heart. Vertebrae are
arranged on top of the other and
move over each other slightly.
SKELETAL SYSTEM
42. There are 33 vertebrae in the
spinal column of a child and 26 in
an adult. This is so because as
the child grows, the last seven
bones join together to form just
two bones.
SKELETAL SYSTEM
43. Ribs are the bones at the side of
the chest. There are 12 pairs of
ribs. The upper 7 pairs are the true
ribs because they are connected to
the breastbone and the last two
pairs are not connected. These ribs
are called floating ribs.
SKELETAL SYSTEM
44. The shoulder has the collarbone
found in front of it. Scapula is the
shoulder bone found at the back of
your shoulder.
SKELETAL SYSTEM
45. The appendages found in the
lower extremities are
composed of pelvic bones.
Pelvic bones support the
lower parts of the body and aid
the movement of the legs.
SKELETAL SYSTEM
46. The upper arms have one long
bone called the humerus and
two bones in the lower arm are
known as the radius and ulna.
Radius or radial bone is one
of the two large bones of the
forearm.
SKELETAL SYSTEM
47. The upper arms have one long
bone called the humerus and
two bones in the lower arm are
known as the radius and ulna.
SKELETAL SYSTEM
48. Radius or radial bone is one
of the two large bones of the
forearm. The other bone is the
ulna. The ulna is usually
slightly longer than the radius
while the latter is usually
thicker.
SKELETAL SYSTEM
49. The wrist connects the hand to
the forearm. Each wrist or
carpal consists of 8 bones. The
palm or metacarpal has 5
bones.
SKELETAL SYSTEM
50. The wrist connects the hand to
the forearm. Each wrist or
carpal consists of 8 bones. The
palm or metacarpal has 5
bones.
SKELETAL SYSTEM
51. Inside the bones are bone
marrows that are very
important for the body to
manufacture blood cells. Bone
marrows are of two types, the
red bone marrow and the
yellow bone marrow.
SKELETAL SYSTEM
52. The red bone marrow is found
in the humerus, femur, pelvis
and vertebrae while the yellow
bone marrow is found in many
other bones.
SKELETAL SYSTEM
53. The red bone marrow is found
in the humerus, femur, pelvis
and vertebrae while the yellow
bone marrow is found in many
other bones.
SKELETAL SYSTEM
54. Inside the bones are bone
marrows that are very
important for the body to
manufacture blood cells. Bone
marrows are of two types, the
red bone marrow and the
yellow bone marrow. The red
SKELETAL SYSTEM
55. The human skeletal system has
several important functions.
1. Support -The skeletal system
provides the framework which
supports and maintains shape of
the body. It gives the body much
needed support.
SKELETAL SYSTEM
56. 2. Protection -The skeletal
system protects the internal organ
of the body.
3. Movement- The skeletal
system provides an attachment for
the muscle which makes body
movements possible.
SKELETAL SYSTEM
57. 4. Storage and Supply- The
skeletal system stores important
minerals like calcium and
phosphorus and produces both
red and white blood cells.
SKELETAL SYSTEM
58. Directions: Study the name of the
bones inside the box. Classify
them into Axial or Appendicular.
A C T I V I T Y 2
62. Functions of the Skeletal
System
Explain briefly how
the skeletal system
works
A. support the body Provides framework
of the body
A. protect the internal organs
B. enable movement
C. store minerals
D. supply red and white cell
A S S E S S M E N T
68. The human body is made up of
different kinds of bones. These
bones are called skeleton. The
human skeleton is the internal
framework of the body. The adult
human skeleton consists of 206
bones that are connected to one
another by ligaments.
69. At birth, infants have around 300
bones fused together when they
become adults. These bones
work together as a system called
a skeletal system. The skeletal
system serves as the framework
of the body.
70. Its major functions are body
support, facilitation of
movement, protection of internal
organs, storage of minerals and
fats, and blood cell formation.
71. The skeletal system is mainly
composed of bones which are
classified into two divisions, the
axial and the appendicular
skeleton.
SKELETAL SYSTEM
72. The axial skeleton includes the
skull, vertebral column, ribs, and
sternum. These bones form the
axes or framework of the trunk
and head.
SKELETAL SYSTEM
77. One of the axial skeletons is the
skull which consists of cranium
and facial bones. The cranium is
made up of eight bones joined
together to form a rigid case that
protects the brain.
SKELETAL SYSTEM
78. The face is made up of 14 facial
bones. The eye socket protects
the eyeball while mandible or
jawbone is movable bone that
holds the teeth.
SKELETAL SYSTEM
79. The spinal column or vertebrae
(neck and backbone) are irregular
bones that protect the spinal cord
while the ribcage protects the
lungs and the heart. Vertebrae are
arranged on top of the other and
move over each other slightly.
SKELETAL SYSTEM
80. There are 33 vertebrae in the
spinal column of a child and 26 in
an adult. This is so because as
the child grows, the last seven
bones join together to form just
two bones.
SKELETAL SYSTEM
81. Ribs are the bones at the side of
the chest. There are 12 pairs of
ribs. The upper 7 pairs are the true
ribs because they are connected to
the breastbone and the last two
pairs are not connected. These ribs
are called floating ribs.
SKELETAL SYSTEM
82. The shoulder has the collarbone
found in front of it. Scapula is the
shoulder bone found at the back of
your shoulder.
SKELETAL SYSTEM
83. The appendages found in the
lower extremities are
composed of pelvic bones.
Pelvic bones support the
lower parts of the body and aid
the movement of the legs.
SKELETAL SYSTEM
84. The upper arms have one long
bone called the humerus and
two bones in the lower arm are
known as the radius and ulna.
Radius or radial bone is one
of the two large bones of the
forearm.
SKELETAL SYSTEM
85. The upper arms have one long
bone called the humerus and
two bones in the lower arm are
known as the radius and ulna.
SKELETAL SYSTEM
86. Radius or radial bone is one
of the two large bones of the
forearm. The other bone is the
ulna. The ulna is usually
slightly longer than the radius
while the latter is usually
thicker.
SKELETAL SYSTEM
87. The wrist connects the hand to
the forearm. Each wrist or
carpal consists of 8 bones. The
palm or metacarpal has 5
bones.
SKELETAL SYSTEM
88. The wrist connects the hand to
the forearm. Each wrist or
carpal consists of 8 bones. The
palm or metacarpal has 5
bones.
SKELETAL SYSTEM
89. Inside the bones are bone
marrows that are very
important for the body to
manufacture blood cells. Bone
marrows are of two types, the
red bone marrow and the
yellow bone marrow.
SKELETAL SYSTEM
90. The red bone marrow is found
in the humerus, femur, pelvis
and vertebrae while the yellow
bone marrow is found in many
other bones.
SKELETAL SYSTEM
91. The red bone marrow is found
in the humerus, femur, pelvis
and vertebrae while the yellow
bone marrow is found in many
other bones.
SKELETAL SYSTEM
92. Inside the bones are bone
marrows that are very
important for the body to
manufacture blood cells. Bone
marrows are of two types, the
red bone marrow and the
yellow bone marrow. The red
SKELETAL SYSTEM
93. The human skeletal system has
several important functions.
1. Support -The skeletal system
provides the framework which
supports and maintains shape of
the body. It gives the body much
needed support.
SKELETAL SYSTEM
94. 2. Protection -The skeletal
system protects the internal organ
of the body.
3. Movement- The skeletal
system provides an attachment for
the muscle which makes body
movements possible.
SKELETAL SYSTEM
95. 4. Storage and Supply- The
skeletal system stores important
minerals like calcium and
phosphorus and produces both
red and white blood cells.
SKELETAL SYSTEM
98. Directions: Draw the skeletal
system and label its parts on a
clean sheet of paper. Then write a
short description just below your
drawing.
A S S E S S M E N T