Muscle Cells Flashcards
What are these
Left (with horizontal lines) skeletal muscle cell
Right, cardiac muscle cell
What is the sausage casing that encases the whole cell (not REALLY shown)
Sarcolemma
What’s the juice that the myofibrils are swimming in
Sarcoplasm
Identify this section of skeletal muscle
Cisternae
What’s this hotdog
Mitochondria
What’s this line
T-tubule
What’s that hotdogs
Mitochondria
What is this part of the cardiac muscle
Cisternae
What’s this rubbish
Sarcoplasmic reticulum
What is the length of the red line
Sarcomere
What’s the zig zag line in the middle
Z line/Z disc
Identify this area
The I band (I for thin because the actin filaments are thin)
What is the circled area
A band (A for fat, fat because the myosin filaments are fat)
Sarcomere is from what line to what line
Z line to z line
What is this area called
H zone (with myosin in it), includes the M line right down the middle.
