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Lesson 14.2 NOTES: The Muscular System (Unlock) Essential Question: -What are the structures and functions of the muscular system? Learning Target(s): -I can identify the major structures and explain functions of the muscular system.

I. Movement A. Muscles work together in __________. B. As one muscle __________ (shortens), the other relaxes (lengthens). Draw and complete the following diagram: ----------à 1. Voluntary: can control 2. __________: cannot control **Copy and complete the table using the following words:

Voluntary Muscle Both Involuntary Muscle

II. Classification 1. skeletal muscle- moves __________ -tendons: tissue that attaches muscle to __________ 2. __________ muscle- internal organs 3. cardiac muscle- only in the __________ ***Copy and complete the following graphic organizers in your notebook.

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Lesson 14.2 CLASSWORK: The Muscular System Learning Target: I can identify structures and explain functions of the muscular system. Vocabulary: skeletal; smooth; cardiac; voluntary; involuntary; contract; relax; tendon Warm Up: Complete Socrative Assessment. Copy errors and confusions. Teaching: Review LT; Vocabulary; Socrative Results Possible Misconception: Muscles can either be voluntary or involuntary. Task: 1. "Blinking Lab" **See page 3-5 of this document 2. “Microscope Lab” ** See pages 6-8 of this document OR Research microscopic images of the three muscle types. a. Draw the microscopic images in your notebook. b. Label each image and describe using key vocabulary (striated; unstriated; nucleus) Summarize: Check your answers Analyze the following 3 frames. Complete the table by describing the voluntary and involuntary muscle actions taking place. Vocabulary to include: skeletal, smooth, cardiac

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BlinkingLabLT:Icanfollowamultistepprocedureandcollectdatainordertoexplainifblinkingisavoluntaryorinvoluntarymusclemovement.Background-ReviewingContent:Musclesattachedtoyoureyelidsallowyoutoblinkyoureyes.Isitnecessarytoremindyourselftoblinkordoesthemuscledoitsjobautomatically?Canyoustopyourselffromblinkingifyouthinkaboutit?Musclesthatdonothavetoberemindedarecalledinvoluntary.Thosemusclesthatyoucontrolarecalledvoluntarymuscles.Dotheeyelidmuscleseverbehaveasbothvoluntaryandinvoluntarymuscles?Dosomeexperimentingtoseeifyoucananswerthisandafewotherquestionsaboutblinking.Materials:

• timer• clearplasticsheet/wrap(30x30cm)• largecottonball

ProcedureA:

1. Lookatyourpartner’seyes.Countthenumberofblinksheorshemakesin1minute.NOTE:Donottrytoreduceorincreasethenumberofnormalblinks.RecordthenumberinTable1inDataandObservations

2. Repeatstep1twomoretimes.3. Completethetablebydeterminingtheaveragenumberofblinks(roundedtothenearestwhole

number).4. Repeatsteps1-3witheachgroupmember.

ProcedureB:1. Haveyourpartnerwatchyoureyes.Yourpartnershouldtimeinsecondshowlongyoucangowithout

blinking.(YouarepurposelytryingNOTtoblink.)Noticeandrememberthefeelingofyoureyesduringthistime.RecordthenumberofsecondsinTable2.

2. Changerolesagain.Youwilltimeinsecondshowlongyourpartnercangowithoutblinking.(HeorsheispurposelytryingNOTtoblink.)Yourpartnershouldnoticeandrememberthefeelingofhisorhereyesduringthistime.RecordthenumberofsecondsinTable2.

3. Repeatsteps1and2twomoretimesforeachgroupmember.4. Completethetablebydeterminingtheaveragenumberofsecondseachpersonwentwithoutblinking

(roundedtothenearesttenth).

ProcedureC:1. Haveyourpartnerholdasheetofclearplasticinfrontofhis/herface.NOTE:Theplasticsheetshould

nottouchyourpartner’sface.2. Asyouthrowacottonballattheplastic,noticeandrecordifyourpartnerdoesordoesnotblink.Use

acheckmarktorecordthisinformationinTable3.

3. Repeatsteps1and2ofPartCtwomoretimesandrecordtheresultseachtime.4. Changerolesandrepeatsteps1-3foreachgroupmember.

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Name:________________________________ Date: ________________ Class: __________ #: __________

DataandObservations:

DataTable1

NumberofBlinksin1Minute

Trial Name:______________________ Name:______________________ Name:______________________

1

2

3

Average

DataTable2

TimewithoutBlinkinginSeconds

Trial Name:______________________ Name:______________________ Name:______________________

1

2

3

Average

DataTable3

BlinkingasaReaction

Trial Name:______________________ Name:______________________ Name:______________________

1 OBlinkODidNotBlink OBlinkODidNotBlink OBlinkODidNotBlink

2 OBlinkODidNotBlink OBlinkODidNotBlink OBlinkODidNotBlink

3 OBlinkODidNotBlink OBlinkODidNotBlink OBlinkODidNotBlink

Conclusions Questions (to be answered on a separate sheet of paper):

1. Does Part A show that blinking is voluntary or involuntary? Explain. 2. Does Part B show voluntary or involuntary muscle action? Explain. 3. It is important for your eyes to remain moist. Describe how your eyes felt after not blinking. Do

you think that blinking is helpful and protective? Explain. 4. What does the activity with the cotton ball and plastic help prove? Explain. 5. Enrichment: Other than blinking, describe 3 voluntary and 3 involuntary muscle actions.

Are there any other muscle actions that are both voluntary and involuntary?

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Participation I often contributed good ideas that were relevant to the topic and task. I came to meetings prepared. I did my share of the work.

4 3 2 1 I seldom contributed good ideas. Sometimes I was talking off-task. I did not come to meetings prepared. I did not do my share of the work.

Working with Others I often compromised and cooperated. I did take initiative when needed and/or listened and respected the ideas of others.

4 3 2 1 I seldom compromised and cooperated. I did not take initiative when needed and/or did not listen and respect the ideas of others.

Product My part of the task is complete and accurate. My work was submitted on time.

4 3 2 1 I did not complete my part of the task. The information I presented was inaccurate and/or not done correctly. It was not completed on time.

Understanding Content I can speak about the topic and group work knowledgeably. I can sum-up the lesson.

4 3 2 1 I do not understand what I did in my group. I did not ask or answer questions. I cannot sum-up the lesson.

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Name:________________________________ Date: ________________ Class: __________ #: __________ Recording Observations: __________________________

_______________________________________________________________________________________________________________________________________

Recording Observations: __________________________

_______________________________________________________________________________________________________________________________________

Recording Observations: __________________________

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LT: I can use a microscope to observe and record the similarities and differences in muscle cells. Conclusion/Analysis:

1. How do the cells you observed under the microscope compare in structure?

2. What is the function of each cell type you observed under the microscope? 3 2 1 Lab Procedure Understanding

The lab is thoroughly understood. All lab procedure questions/tasks are answered/completed thoroughly and accurately.

The lab is partially understood. Most lab procedure questions/tasks are answered/completed thoroughly and accurately.

The lab is partially understood. Few lab procedure questions/tasks are answered/completed thoroughly and accurately.

Observations All observations are recorded accurately and precisely.

Most observations are recorded accurately and precisely.

Few observations are recorded accurately and precisely.

Conclusion Analysis

Conclusion/analysis questions are answered thoroughly and correctly.

Conclusion/analysis questions are answered correctly however there is a need for more detail.

Conclusion/analysis questions are answered however there are errors.

Participation I often contributed good ideas that were relevant to the topic and task. I came to meetings prepared. I did my share of the work.

4 3 2 1 I seldom contributed good ideas. Sometimes I was talking off-task. I did not come to meetings prepared. I did not do my share of the work.

Working with Others I often compromised and cooperated. I did take initiative when needed and/or listened and respected the ideas of others.

4 3 2 1 I seldom compromised and cooperated. I did not take initiative when needed and/or did not listen and respect the ideas of others.

Product My part of the task is complete and accurate. My work was submitted on time.

4 3 2 1 I did not complete my part of the task. The information I presented was inaccurate and/or not done correctly. It was not completed on time.

Understanding Content I can speak about the topic and group work knowledgeably. I can sum-up the lesson.

4 3 2 1 I do not understand what I did in my group. I did not ask or answer questions. I cannot sum-up the lesson.

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