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The patella is a pulley
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∙ 12y ago
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How do bones act as levers?
they act to help move your bones
What forces act on a pulley?
gravity
How does a fixed pulley act as machine?
It changes the direction of the input force only
When a body is falling freely which force act on it?
no force act on it
What are the three forces that act on a pulley system?
The forces that could occur in a pulley system are the force of gravity (due to the pulley's own weight), the tension force (of the rope), and the applied force (the force pulling on the ropes, i.e. a person pulling on it, or a load on the rope). goog dkjf ikjhrknj mjbnrgje gjknhdk irhfgt n s
What job do the bones have in the body?
It holds the body up so that it does not act like gelatin.
Function of bones in the human skeletal system?
The hold you up, and act as levers to allow you to move.
Do bones act as passively operrate levers to move the body?
No. Bones help keep our body the right shape, and are moved by muscles, but muscles use the protein from our food as the energy to move them.
How do bones act as levers?
they act to help move your bones
Which bones help the body move for lifting objects?
Just about every bone in teh body helps move or lift objects. bones act as levers for the muscles to contract against. wiki on!
What forces act on a pulley?
gravity
Does the skeletal system provide storage for organic matter?
Bones act as reserves for minerals that are important to the body. Ninety-seven of an organism's calcium is stored in its bones.
Is a human body chemical of mechanical?
The human body contain ten of thousands of chemical substances. But every living being act also as a mechanical installation.
What 2 functions of the bones?
Bones have several functions. The first and most obvious function is to make up the skeletal framework that provides rigidity to the body. Bones also provide a protective armor for vital areas of the body, including the rib cage that protect the heart and lungs, and the skull that protects the brain. Finally, bone marrow, the pulpy tissue that occupies the cavities inside the bones, manufactures all the body's red blood cells.
What act as the control center?
The 'nucleus' is what controls the cell in a human or animal system of body.
Identify two limitations of physical models?
One limitation of a physical model is that a model of a human body may look like a human body, but does not act/work like a human body does.( sorry only found one limitation )
What are vitamins used for in the human body?
Vitamins have differenct functions. They regulate the biochemical reactions(metabolism),helps in bones,tooth and blood cells formation,act as antioxidants to kill free radicals(keeps you young!),boosting immunity, preventing from cancer etc..
