00:01
Skeletal muscle fibers.
00:02
A.
00:03
Are identical in appearance to smooth muscle.
00:06
B.
00:06
None of these.
00:07
C are involuntary.
00:10
D are long, highly branched cells with many nuclei.
00:13
Or e, have contractile filaments of actin and myosin.
00:17
So we'll start with d.
00:18
D is not true because skeletal muscle cells are not highly branched.
00:23
There are four traits of skeletal muscle cells.
00:27
They are striated, which means that if you look at them, they have a clearly striped appearance.
00:34
They are unbranched, so they are linear.
00:38
So all the stripes are going in the same direction.
00:42
They are multi -nucliate, so they have many nuclei.
00:48
Very big cell needs a lot of nuclei to function...