Both at a steady rate allowing the

Both types of muscle help the body to function. Skeletal
muscle is controlled by the nervous system, a message can be sent from the
brain to the CNS then to the muscle fiber allowing the owner to voluntarily
move their body parts. Cardiac muscles are involuntarily controlled which
allows them to work continuously without effort from the owner. Both skeletal
and cardiac muscle are striated muscle, meaning they have striations that run
across the muscle, these striations contain sarcomeres which are very useful
functioning units which allow the muscle to contact very effectively. Skeletal
muscles pull at tendons attached to bone which cause the body part to move, an
example of this are biceps, when desired the owner can use this muscle to move
their arm. Cardiac muscles line the heart and contract at a steady rate
allowing the heat top beat in turn, pumping the blood around the body. Each
skeletal muscle fiber is a cylindrical muscle cell whereas cardiac muscle has a
spindle shape. The cardiac muscle also has branching fibres and is loosely
bound together whereas skeletal muscle does not and is tightly bound together.
Skeletal muscle fibres are very long whereas cardiac muscle fibres are very
short. Cardiac muscle has intercalated discs which skeletal muscle does not
have but instead has the Z band which is where two muscle cells meet.

 

Both adipose and bone support and protect critical body
parts and store useful substances for the body to use. Adipose tissue is found
just underneath the skin or surrounding the organs whereas bone is found all
over the body as it is used as the ‘scaffolding’ or ‘framework’ of the body,
holding it up. The function of adipose is to provide padding and protection
around organs and joints whereas the function of bone is to support muscle,
skin, limbs and organs and assist in movement. Both adipose and bone also store
minerals. Bones have central tubes called the Haversian canal which contains
nerves and blood vessels, bone also contains lots of small rings creating a
strong, hard structure called lamellae these lamellae have small spaces in
between called lacunae which contain the bone cells. Adipose tissue is a
connective tissue containing cells called adipocytes, these cells contain
triglycerides which is a type of fat, this helps adipose to carry out its
function because it helps create a soft and ‘padded’ layer to form around the
organs to protect them.

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