Skeletal & Muscular Systems. clavical Patella (Knee Cap) How many bones do you know?
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Transcript of Skeletal & Muscular Systems. clavical Patella (Knee Cap) How many bones do you know?
Skeletal & Muscular Systems
clavical
Patella(Knee Cap)
How many bones do you know?
WHAT ARE THE FUNCTIONS OF THE SKELETAL SYSTEM?
Provides shape to the body
Muscle attachment
Protects certain organs
WHAT ORGANS ARE PROTECTED?
Brain Heart & Lungs
HOW MANY BONES DO WE HAVE IN OUR BODY?
206Babies are born with 270
soft bones - about 64 more than an adult; and many
of these will fuse together by the age of twenty or twenty-five into the 206 hard, permanent bones.
Define Joint:
The point where 2
bones come
together.
TYPES OF JOINTS Pivot (Swivel): Rotation around a fixed point
Ellipsoidal: Allows movement in all ways except rotation.
Saddle : allows movement in two directions.
Ball & socket: round end of one bone fits into cup like end of another, most movement
Hinge: Simplest joint, allows backward and forward movement.
Plane (Gliding): 2 flat surfaces of bone slide over each other.
WHAT CONNECTS BONE TO
BONE AT A JOINT?
Ligaments
WHAT IS THE TISSUE THAT CONNECTS MUSCLE TO BONE?
Tendon
The Achilles tendon is the largest tendon in the human body and can withstand forces of 1,000 pounds or more. But it is also the most vulnerable and frequently ruptured tendon.
WHAT CUSHIONS THE BONES IN A JOINT?
Cartilage
MUSCULAR SYSTEM
What muscles do you know?
DeltoidsPectorals
Bicep
Abs
Quadriceps
Trapezius
Triceps
LatissimusDorsi
Gluteus Maximus
Hamstrings
Gastrocnemius
Movement
Creates heat
Protection of the joints
WHAT ARE THE FUNCTIONS OF THE MUSCULAR SYSTEM?
How do muscles work together to cause movement? The muscles work in pairs
to keep your body moving
When one muscle contracts (shortens), the other one relaxes (lengthens)
Ex… the biceps and triceps muscles work as a pair to bend and straighten the arm (flexion and extension)
Aerobic vs. Anaerobic…what’s the difference?
Aerobic Activities…The body uses oxygen to strengthen the heart and lungs, builds endurance.
Anaerobic Activities…used for building muscle cell size
WHY IS IT IMPORTANT TO HAVE BOTH AEROBIC AND
ANAEROBIC ACTIVITIES?
What are some examples of both?