Muscle and Skeletal System

Muscular
System

More than 600 muscles make up the
system known as the muscular system .
Muscles are bundles of muscle fibers
held together by connective tissue.

The 5 main functions of the muscular system are :

●

movement

●

Support

●

Protection

●

heat generation

●

blood circulation.

Muscles work with
your bones, tendons
and ligaments.
Tendons attach
skeletal muscles to
bones all over your
body. Together, they
support the weight of
your body and help
you move.

Muscle Support

Muscles in the torso protect the
internal organs at the front, sides,
and back of the body.

The bones
of the spine and the ribs provide
further protection.


Muscles also
protect the bones and organs by
absorbing shock and reducing
friction in the joints.

Protection

There are 3 types of muscles:

Skeletal muscles:the muscles that connect
to your bones and allow you to perform a wide
range of movements and functions. Skeletal
muscles are voluntary, meaning you control
how and when they work.

Examples of skeletal muscles:

● shoulder muscles (help pick thing up)
● hamstring muscles (walking)
● abdominal muscles (protect the spine)

Smooth Muscles:

These muscles are involuntary,
meaning they work without
thinking about it.

Examples of smooth muscles:

● Digestive tract muscles
● Respiratory muscles
● Bladder muscles

Cardiac Muscles

Cardiac muscles are also
involuntary and are found in the
heart. Cardiac muscles contract
the heart to keep blood flowing
throughout the body during its
lifetime.

Blood vessels contain only smooth muscle cells.
These muscle cells reside within the tunica media
along with elastic fibers and connective tissue.

Multiple Select

what are the three type of muscles?

• Smooth

• Cardiac

• Skeletal

• connective

Skeletal system

​half way there class :)

Multiple Choice

Do Now:

What are the functions of the Skeletal System?

• Protection

• Support

• Movement

• All of the above

How many bones are in an adult skeleton?

206

Multiple Choice

One of the purposes of the skeletal system is to:

• Protect your organs

• so you won't get sick

Multiple Choice

What type of tissue provides cushion for our bones?

• Nervous tissue
• Brain tissue

• Cartilage tissue
• Muscle tissue

Multiple Choice

Which is NOT a function of the skeletal system?

• protection and movement

• Shape & Support

• transport blood throughout the body

• Produce blood cells

Multiple Choice

Which body system works with the skeletal system to help us move? (HINT: Who is it's BFF?)

• Respiratory system
• Muscular system
• Nervous system
• Digestive system