musculoskeletal system Flashcards
how the system works
The musculoskeletal system also allows us to move by changing the positioning of bones in their joints.
how do muscles work
Our brain sends an electrical signal along our nerves, commanding our muscles to contract (tense up)
how many bones and muscles dows the body have
206 bones
over 600 muscles
role of the system
the role of the musculoskeletal system is to provide form, support, protection and movement to the body.
what are bones
Bones are living tissues that require nutrients and oxygen and thus have their own blood supply
how are bones strengthened
Bones are strengthened with minerals containing calcium and phosphorus.
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what are voluntary muscles
Voluntary muscles (under conscious control) eg. movement muscles
what are involuntary muscles
- Involuntary muscles (not under conscious control). eg. Heart and digestive muscles.
how are muscles attached to bones
Humans have an internal skeleton to which muscles are attached with tendons.
do bones have their own blood supply
yes
