muscle tissue & nervous tissue tissues - 3. essential question how does form follow function in...

MUSCLE TISSUE&

NERVOUS TISSUE

Tissues - 3

Essential Question

How does form follow function in muscle and nervous tissue?

Muscle Tissue

Has cells that are contractile & excitable

Comes from mesoderm Cells called muscle fibers

http://www.google.com/imgres?q=muscle+tissue+electron+micrograph&hl=en&safe=active&biw=1045&bih=509&tbm=isch&tbnid=nQ7NKyZRHJNr5M:&imgrefurl=http://ard.bmj.com/content/63/3/245.full&docid=8hor7nJwXmT04M&imgurl=http://ard.bmj.com/content/63/3/245/F2.large.jpg&w=1280&h=800&ei=5wp3UKUph-LSAbO8gNgN&zoom=1&iact=hc&vpx=544&vpy=2&dur=1784&hovh=177&hovw=284&tx=128&ty=110&sig=108233724790608712644&page=1&tbnh=134&tbnw=214&start=0&ndsp=9&ved=1t:429,r:2,s:0,i:76

3 types of muscle

1. Skeletal 2. Cardiac 3. Smooth

http://www.google.com/imgres?q=muscle+tissue+diagram&num=10&hl=en&safe=active&biw=1045&bih=509&tbm=isch&tbnid=DKcPYGM932G-mM:&imgrefurl=http://health.allrefer.com/pictures-images/types-of-muscle-tissue.html&docid=tFObhoKhtuEalM&imgurl=http://medicalimages.allrefer.com/large/types-of-muscle-tissue.jpg&w=400&h=320&ei=ZAp3UMLsMLOq0AHnx4CQAQ&zoom=1&iact=hc&vpx=553&vpy=181&dur=3270&hovh=201&hovw=251&tx=92&ty=135&sig=108233724790608712644&page=1&tbnh=147&tbnw=184&start=0&ndsp=8&ved=1t:429,r:6,s:0,i:92

Skeletal Muscle

Voluntary Striated multinucleated Packaged by CT Each muscle is an organ Most connect to a bone &

contraction causes bone to move

http://www.google.com/imgres?q=muscle+tissue+skeletal&hl=en&safe=active&biw=1045&bih=509&tbm=isch&tbnid=GHZxJYbAe8-VXM:&imgrefurl=http://www.unm.edu/~jimmy/muscle1_notes.htm&docid=jDwTxhAoodIvAM&imgurl=http://www.unm.edu/~jimmy/skeletal_muscle.jpg&w=540&h=400&ei=wQt3UJT6IYm20AGf-4GwCQ&zoom=1&iact=hc&vpx=127&vpy=174&dur=2080&hovh=193&hovw=261&tx=129&ty=106&sig=108233724790608712644&page=1&tbnh=149&tbnw=201&start=0&ndsp=8&ved=1t:429,r:4,s:0,i:83

Cardiac Muscle

Involuntary Striated Found only in heart Cell junctions: intercalated discs

Gap junctions that allows ions pass directly into neighboring cells for transmission of nerve impulse

http://www.google.com/imgres?q=muscle+tissue+cardiac&hl=en&safe=active&biw=1045&bih=509&tbm=isch&tbnid=J1_MKTca6DI1XM:&imgrefurl=http://schools.nashua.edu/myclass/marshalll/anatomy/Pictures/Forms/DispForm.aspx?ID=7&docid=E8HOGzM-pxJI9M&imgurl=http://schools.nashua.edu/myclass/marshalll/anatomy/Pictures/tissue%2520images/cardiac%2520muscle.jpg&w=425&h=301&ei=Ag13UITFJfS10QH3noAo&zoom=1&iact=hc&vpx=108&vpy=193&dur=625&hovh=189&hovw=267&tx=113&ty=140&sig=108233724790608712644&page=1&tbnh=148&tbnw=206&start=0&ndsp=8&ved=1t:429,r:7,s:0,i:92

Smooth Muscle

Involuntary Nonstriated Found in walls of organs

Found all thru GI tract Contracts in waves called peristalsis

Keeps food moving thru

http://www.google.com/imgres?q=muscle+tissue+smooth&hl=en&safe=active&biw=1045&bih=509&tbm=isch&tbnid=2lv9yhHz-P7PnM:&imgrefurl=http://www.gwc.maricopa.edu/class/bio201/Histology/HistoRev22a.htm&docid=JHTJPS80F_3UgM&imgurl=http://www.gwc.maricopa.edu/class/bio201/Histology/31SmoothMusc3_400X_rev.jpg&w=717&h=538&ei=7A13UKa2Aomy0QGI_4HwBw&zoom=1&iact=hc&vpx=111&vpy=137&dur=3473&hovh=194&hovw=259&tx=125&ty=99&sig=108233724790608712644&page=1&tbnh=142&tbnw=189&start=0&ndsp=8&ved=1t:429,r:0,s:0,i:70

Nervous Tissue

Irritable Conductive Comes from endoderm Cells called neurons

http://www.google.com/imgres?q=nervous+tissue+images&hl=en&safe=active&biw=1045&bih=509&tbm=isch&tbnid=QGzQDe4_UM8vkM:&imgrefurl=http://www.studydroid.com/index.php?page=viewPack&packId=102445&docid=AtvC5GoWdk3dZM&imgurl=http://www.studydroid.com/imageCards/06/9c/card-6598943-front.jpg&w=425&h=297&ei=nw53UKHHIuWT0QHH6oGYDA&zoom=1&iact=hc&vpx=105&vpy=168&dur=4282&hovh=188&hovw=269&tx=94&ty=117&sig=108233724790608712644&page=7&tbnh=150&tbnw=203&start=79&ndsp=15&ved=1t:429,r:0,s:79,i:333

Supporting Cells

Support neurons In CNS

Astrocytes Microglia Oligodendocytes Ependymal cells

In PNS Schwann cells Satellite cells

http://www.google.com/imgres?q=nervous+tissue+supporting+cells&hl=en&safe=active&biw=1045&bih=509&tbm=isch&tbnid=Lw-N6RgI2wlg5M:&imgrefurl=http://www.rnpedia.com/home/notes/medical-surgical-nursing-notes/nervous-system&docid=-DwgG9HaTbBFTM&imgurl=http://cdn.nursingcrib.com/wp-content/uploads/neuroglial-cell-300x225.gif&w=300&h=225&ei=MxJ3UKaBOunE0AGQr4GQCA&zoom=1&iact=hc&vpx=323&vpy=186&dur=734&hovh=180&hovw=240&tx=56&ty=82&sig=108233724790608712644&page=1&tbnh=148&tbnw=195&start=0&ndsp=9&ved=1t:429,r:5,s:0,i:86

muscle tissue & nervous tissue tissues - 3. essential question how does form follow function in...

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