Health Blog!

Welcome students to our class blog. We will be using this space for class discussions to examine, evaluate, and share knowledge. Discussions provide opportunities for students to think critically on the topics we will be learning about in Health class. Concepts, assignments, and readings will be used as the basis for our discussions to create a positive learning community in which students are willing to share their ideas and to accept constructive criticism from their peers.

Tuesday, January 11, 2011

Concept Check 27.5

1.Explain how muscles work in pairs in moving limbs.
The muscle strech and contract when they move if the tricep streches then the bicep contracts.
2.Idenify the structures that make un the skeletal muscle.
Actin, Myosin, Sacromere, Myofibrils, Muscle fibers
3. Identify at least three organ systems involved in a handshake. Describe what each system contributes to the handshake.
You use the brain to give directions to the hand to move. then the eye move to calculate how much distance the hand has to pass to do the handshake and the muscular system to move the hand.
4. Explain how actin and myosin interact as a muscle cell contracts.
ATP is used to give energy to the cell so it can contract and strech.
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4 comments:

  1. Francisco OrdonezJanuary 11, 2011 at 4:59 PM

    i think that in number 4 you should have done a more complete answer bc that doesn't cover the topic asked completly

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  2. UnknownJanuary 11, 2011 at 5:46 PM

    I think your answer to question 1 could have been more deep when explaining how muscles work. The relationship between muscles is very complex and because muscles can only pull and not push they need another muscle to pull in the opposite direction.

    ReplyDelete
  3. Juan LasalaJanuary 11, 2011 at 6:10 PM

    I think you could give a deeper explanation of what is happening in question 1 by explaining when each one expands and contracts. the same thing with question 4, explain what actin and myosin do more specifically

    ReplyDelete
  4. IvoJanuary 11, 2011 at 7:01 PM

    you could explain in more detail why muscles contract and relax to work in pairs; also you could go into a deeper explanation in the interaction between actin and myosin.

    ReplyDelete

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