Slides in this set

Slide 1

Preview of page 1

Muscles
Structure and Contraction…read more

Slide 2

Preview of page 2

Structure…read more

Slide 3

Preview of page 3

Sarcomere
I-band A-band I-band
M-line
Z-line Myosin Z-line
Actin
H-Zone
Structure…read more

Slide 4

Preview of page 4

Contraction…read more

Slide 5

Preview of page 5

Myosin filaments have globular heads and
binding sites.
Troponin Actin
Tropomyosin Myosin globular
head
Myosin
The binding sites in resting muscles are
blocked by tropomyosin.
Sliding filament hypothesis…read more

Slide 6

Preview of page 6

Muscle contraction is triggered by an
action potential.
Ca2+
AT
Pa
se
Sliding filament hypothesis…read more

Slide 7

Preview of page 7
Preview of page 7

Comments

Laura

I'm sorry but this resource is really not detailed enough to pass A2 questions...

ella

This is nice and easy to understand - i like the diagrams - thank you !

Similar Biology resources:

See all Biology resources »See all resources »