8th Grade Health
How do my muscles work?
2. How can I get stronger?
1.
Students will…
review location and function of basic
muscles
discover how a strong muscular system
affects health, performance and
appearance
Recognize the relationship between an
active lifestyle and a healthy diet in the
development of a strong muscular
system
Students will…
Name the location and function of
basic muscles of the human anatomy
Describe how an active lifestyle with
exercise promotes muscle growth
Explain how a healthy diet is
necessary for a strong muscular
system
Instructions:
1.
2.
Number your paper 1-11
Write the NAME of the muscle next to
the number on the diagram on the
following slide
2-3 minutes
1
6
2
7
3
5
8
9
4
10
11
Muscle Names
• Abdominals
• Biceps
• Deltoids
• Gastrocnemius
• Gluteals
• Hamstrings
• Latissimus Dorsi
• Pectorals
• Quadriceps
• Trapezius
• Triceps
Do you remember the
skeletal system from 5th
grade?
 Follow
along to the video about
how the skeletal system and
muscular system are related.
1. Cardiac
Muscle
2. Smooth Muscle
3. Skeletal Muscle
1.
Involuntary
 automatic
2.
Voluntary
 we control the
movement
Control:
Involuntary
Appearance:
Striped
Location:
Only in the heart
Control:
Involuntary
Appearance:
Smooth
Location:
Digestive System
Blood vessel walls
Control:
Voluntary
Appearance:
Striated
Location:
Attached to
bones
 Read
Muscles for Life Student
introduction (3.26)
 Complete the worksheet as you read
along
 If you finish early, get out a book or other
homework as you wait patiently for the
class to move on together
 15-20 minutes
Movement
Assists in:
Breathing, digestion, and
pumping of the heart
Provides
long-term health
benefits
Enhances performance
in activities
Provides improvements in
appearance
Flexors
 decrease angle at
joint
Extensors
 increase angle at
joint
Skeletal Muscles: Working in Pairs
Adductors
 towards center of
body
Abductors
 away from center of
body
Allows a person to…
 perform daily daily activities with greater
ease (muscular strength)
 enhance quality of life by accomplishing
more (muscular endurance)
 Increase in bone density = decrease risk
of osteoporosis
 improve posture and alignment to
reduce low back problems
 decrease risk of injury caused by
everyday mishaps
Muscles get stronger according to the
amount of stress or work that is placed
on them.
Resistance training increases:
Muscular strength, muscular endurance,
power, speed, agility, coordination and
balance
Body Composition = The percentage of
fat-free mass vs. fatt mass
Muscle mass burns calories!
Improved appearance leads to higher selfesteem
1. Abdominals
2. Biceps
3. Deltoids
4. Gastrocnemius
5. Gluteals
6. Hamstrings
7. Latissiumus Dorsi
8. Pectorals
9. Quadriceps
10. Trapezius
11. Triceps
DELTOID
PECTORALS (PECS)
BICEPS
ABDOMINALS
QUADRICEPS
(QUADS)
TRAPEZIUS
LATISSIMUS
DORSI
(LATS)
TRICEPS
GLUTEULS
HAMSTRINGS
GASTROCNEMIUS
WARM UP
Finish filling in the location of the muscles on your circuit
worksheet and answer the following questions
• What is the function of the
muscular system?
• Why is it important to have a
healthy muscular system?
• How do muscles work in pairs to
make a joint move?
ex. Biceps and Triceps moving
the elbow
Strengthening
Exercise
Location
Function
Importance
Curl-ups,
crunches
Cover
stomach
Bend
forward at
the waist
Prevents
injury to
back and
internal
organs
Strengthening Location
Exercise
Function
Importance
Bicep curls,
chin-ups
Bend the
elbow
Carrying your
books, water
skiing or wake
boarding
Front, top half
of the upper
arm
Strengthening Location
Exercise
Function
Importance
Lateral raises,
shoulder press
Moves upper
arm
Throw a ball,
do jumping
jacks, paint a
house
shoulder
Strengthening Location
Exercise
Function
Importance
Calf raises
Point the toes
Jump, climb
stairs, walk
Back of lower
leg
Strengthening
Exercise
Location
Function
Importance
Squats, lunges
Buttocks
Moves thigh
backwards
Jump, walk,
climb stairs or
hills
Squats
Strengthening Location
Exercise
Function
Importance
Leg curl,
lunges
Bend the knee
To walk and
run
Back of upper
leg
Strengthening
Exercise
Location
Function
Importance
Lat pull-down,
seated row
On the back
Allows a person
to pull
Pull-ups, water
ski, climb a tree
Lat Pulldown
Strengthening
Exercise
Location
Function
Importance
Push-ups,
bench (chest)
press
Chest
Help
person to
push
To push a lawn mower or
shopping cart, play
tennis
Strengthening Location
Exercise
Function
Importance
Leg extension,
lunges
Straightening
the knee
Walk, run, kick
Front part of
upper leg
Leg
Extension
Strengthening
Exercise
Location
Function
Importance
Shoulder shrugs,
Seated row, bent
over row
Upper and mid
back
Pull arms in and
raise shoulders
towards ears
Lifting object or
pulling them
close to the body
Strengthening
Exercise
Location
Function
Importance
Tricep
extensions,
push-ups
Back of upper
arm
Straighten the
elbow
Throw a ball,
push something
away, shoot a
basketball
 What
is the function of the muscular
system?
 Why is it important for me have a
healthy muscular system?
 What is the location and function of the
basic muscles of human anatomy?