Physiology Muscle Physiology (15%) Flashcards
What is the cell membrane found in skeletal and cardiac muscle called
Sarcolema
Where is Ca stored to be released in skeletal muscle
Sarcoplasmic Reticulum
The two types of myofibril
Actin 2:1
Myosin
The thick, H zone myofibril
Myosin
The thin, F actin myofibril
Actin
ATPase attaches to what
Myosin head
Actin is made up of
Tropomyosin
Troponin (I bands)
What part of the actin contains the binding site
F actin Filament
This covers the F actin binding sites
Tropomyosin
This binds Ca and moves tropomyosin off the bidning site
Troponin
This is needed for smooth muscle contraction
Calmodulin
This is the Z line to the next Z line
Sarcomere
This band contains both actin and myosin
A band
This band contains myosin only
H band
This band contains Actin only
I band