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2.3 Muscles
2.3 Muscles
Please connect to this lesson!
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Biologie
Middelbare school
havo
Leerjaar 1
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2.3 Muscles
Please connect to this lesson!
Slide 1 - Diapositive
How do we call joints that allow for a lot of movement?
A
Synovial joints
B
Fibrous joints
C
Cartilaginous joints
D
Sutures
Slide 2 - Quiz
How do we call the joints that keep the bones of the skull together?
A
Synovial joints
B
Fibrous joints
C
Cartilaginous joints
D
Sutures
Slide 3 - Quiz
What type of joints are the intervertebral discs?
A
Synovial joints
B
Fibrous joints
C
Cartilaginous joints
D
Sutures
Slide 4 - Quiz
New born babies have fontanelles in their skull. Later, the bones will grow together and form sutures. Why did the bones not yet grow together?
Slide 5 - Question ouverte
What type of joints are the pivot, hinge and ball-and-socket joint?
A
Synovial joints
B
Fibrous joints
C
Cartilaginous joints
D
Sutures
Slide 6 - Quiz
Look at the X-ray of a synovial joint. What is the name of this type of joint?
A
Pivot joint
B
Hinge joint
C
Ball-and-socket joint
D
Knee joint
Slide 7 - Quiz
PIVOT
HINGE
BALL-AND-SOCKET
Slide 8 - Question de remorquage
Next to bones and joints, what else do you need for movement?
Slide 9 - Question ouverte
Today we will learn about MUSCLES!
There are three types:
1. voluntary muscles (you decide to move)
2. involuntary muscles (you can't control it)
3. cardiac muscle (in your heart)
Slide 10 - Diapositive
Muscles (voluntary or skeletal)
Muscles are attached to bones by tendons
They constist of small fibres
Slide 11 - Diapositive
Slide 12 - Diapositive
Muscles move the bones
Muscles can only contract
- it becomes shorter and thicker
Some muscles need other muscles to relax
Slide 13 - Diapositive
www.argosymedical.com
Slide 14 - Lien
Slide 15 - Vidéo
Muscles at work
Because muscles can only contract, They work in pairs.
Example: Biceps and Triceps in the upper arm
They are called: ANTAGONISTIC PAIRS
- they each do the opposite of the other
Slide 16 - Diapositive
Slide 17 - Diapositive
involuntary muscle/smooth muslce
less strong than skeletal muscle
never tires
inside your organs (like your intestines)
Slide 18 - Diapositive
Slide 19 - Diapositive
cardiac muscle
only in your heart
doesn't tire!
somewhere in between skeletal and smooth muscle
Slide 20 - Diapositive
Slide 21 - Diapositive
Slide 22 - Diapositive
skeletal muscle strength
1. fast twitch fibers => contract faster, tire quickly, give a lot of strength (light colour) => sprinters
2. slow twitch fibers => contract slower, don't tire quickly, have less strength (dark colour) => marathon runners
Slide 23 - Diapositive
The muscles in your small intestines are ...
A
voluntary muscles
B
involuntary muscles
Slide 24 - Quiz
Skeletal muscles are voluntary muscles
A
true
B
false
Slide 25 - Quiz
The muscles in your tongue are ...
A
voluntary muscles
B
involuntary muscles
Slide 26 - Quiz
Marathon runners have a lot of ... in their muscles
A
fast-twitch fibres
B
slow-twitch fibers
Slide 27 - Quiz
What is a antagonistic pair?
A
a place where two bones meet
B
muscles that work together
C
Tendons and ligaments
Slide 28 - Quiz
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