Topic 5g - Skeletal systems & musclea

Question 1

Properties of skeletal muscle…?

Answer 1

very long fibres
striated
many nuclei per cell
under voluntary control (initiated by NS)

Question 2

Properties of cardiac muscle…?

Answer 2

short, branched fibres
striated
1 nucleus per cell
LOTS OF MITOCHONDRIA
contraction is involuntary & myogenic

Question 3

Properties of smooth muscle…?

Answer 3

short fibres
NOT striated
1 nucleus per cell
contraction involuntary -> initiated by stretching, hormones & ANS