6.2 lab - muscle tissue Flashcards
T/F in the muscularis externa, the inner smooth muscle layer is always circular and the outer smooth muscle layer is always longitudinal
true
with respect to lumen, but either can be transversely or longitudinally cut, careful
how will muscularis externa appear in a 45 degree oblique cut?
inner circular and outer longitudinal layers will be largely indistiguishable
a stretched skeletal muscle fiber will have wider __ bands and a (lighter or darker?) appearance
wider I bands
wider H bands
lighter appearance
T/F there are capillaries in the endomysium
true
smaller than the ones in perimysium
3 layers of heart wall
epicardium
myocardium
endocardium
epicardum
outer protective connective tissue layer of heart
-adipose tissue and nerve fibers separate it from myocardium
endocardium
endothelial lining of heart wall
- connective tissue layer with perhaps some adipose tissue separates from myocardium
myocardium
bulk of heart wall
- cardiac myocytes
- contractile layer of heart wall
contractile layer of heart wall
myocardium
the thickest layer of the heart wall is __
myocardium
outer protective connective tissue layer of heart
epicardium
endothelial lining of heart wall
endocardium
the simple squamous epithelium of the inner heart wall is called __
endocardium
more specific than endothelium
the epicardium and endocardium are separated from the myocardium by…
epicardium - adipose and some nerve tissue
endocardium - connective and some adipose tissue
of epicardium, myocardium, and endocardium, which has blood vessels?
i think all of them?
