00:01
What part of the nervous system is responsible for voluntary control of the skeletal muscle? a voluntary control means that it's a conscious move of the skeletal muscle, a conscious movement of the skeletal muscle.
00:27
The system is called the somatic nervous system.
00:32
So basically this is the system that is responsible for the conscious movement that you want to move around, let's say lift arm and move your leg by innervating skeletal muscle.
00:49
So the correct option is the somatic nervous system.
01:02
So we know that it's a conscious movement and this is done by the skeletal muscle.
01:14
The second question, which part of the brain control the pituitary gland? the part of the brain that is in control is called hypothalamus.
01:53
So hypothalamus regularly the pituitary gland through all sorts of hormones relieving and inhibiting hormones.
02:04
The third question, the trigger for the opening calcium ion sensitive channels in the sarcoplasmic reticulum during the cardio muscle contraction is? let's see.
02:39
So obviously the name says it's calcium sensitive channels and it's responsible for the cardio muscle the cardiac muscle contraction the this process what we called is calcium induced calcium release so this involved in the influx of calcium ion now the influx of ion through the voltage gated calcium channel this will trigger the release of additional calcium from the sr or we call called sarcoplasmic reticulum.
03:23
So this is actually what we call, the correct answer is the calcium influx, or we can put a little more calcium, can use calcium release.
03:54
So the large amount of calcium released from the sr, or the sarcoplasmic reticulum is triggered by the influx of calcium ion through the voltage gate calcium channel.
04:10
So this influx of calcium triggered more calcium influx from sr...