Principles of Anatomy & Physiology

Discussions on The Human Body

Please Help With This Anatomy & Physiology Question?

I have a couple questions can someone please help?
1. Functions of the muscle include:
a) contraction allowing for movement of the skeleton.
b) regulation of sphincter-guarded openings
c) calcium storage
d) pumping of blood and propulsion of food via
gastrointestinal system
e) all of the above
AND
Adjancent sarcomeres within a single myofiber are seperated by a protein boundary that anchors the thin myofilaments; these boundaries are called:
a) Z bands
b) M lines
c) H bands
d) Desmosomes
e) Marginot lines

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