Discussion 4 – How The Brain Coordinates Our Movements 1. Do you think that conscious (voluntary) movements must be organized differently from unconscious
Discussion 4 – How The Brain Coordinates Our Movements 1. Do you think that conscious (voluntary) movements must be organized differently from unconscious (involuntary) movements? What does the evidence tell you?
2. Can you point to any body movements that do not involve reflexes–or some reflexes that do not involve bodily movement?
3. Post responses of 75 to 100 words each to two of your fellow class members. Classmate post:
Voluntary movement is definitely coordinated differently than involuntary movement. Voluntary movement is coordinated by the motor cortex, which sends messages throughout the bodily paths, such as the brain stem and spinal cord, to make the muscle contract, or make the voluntary movement happen. Voluntary movement is also different from involuntary as voluntary is movement we are actively trying to do, such as moving my foot off another person’s foot. Involuntary movement is more like reflexes, in the sense that they are rooted deeply within us, and our body automatically does them. An example of involuntary movement would be stepping down or up very hard when missing a stair. This movement is sparked by the body’s realization of the misstep, ultimately realizing it has to get back on the ground, or you could be hurt. This leads the body to step back down on the floor very roughly, as the reflex wanted to protect the body from possible harm. While the brain and spinal cord are still utilized in involuntary movement, the autonomic system is important in this movement too, as it controls most reflexes or automatic activities, like heart regulation and digestion.
A reflex that does not involve movement of the body is digestion. While digestion is not necessarily a reflex, it is coordinated by them. Digestion does not involve visible bodily movement, therefore being a reflex that doesn’t need movement. Digestion only needs the automatic reflexes in your body to tell the body that you need to digest, the body does not need to move for it.
Classmate post 2:
Both conscious (voluntary) and unconscious (involuntary) movements need to be arranged differently. I began by considering what voluntary movements are and what purpose they serve.Involuntary muscles act on their own, but voluntary muscles can be moved by conscious choice. Muscles of the limbs or skeletal muscles are voluntary, while cardiac muscles and smooth muscles are involuntary. In the sense that voluntary movements must have at least some connection with the planning and other capacities of the mind, conscious (voluntary) motions must be organized slightly differently than unconscious (involuntary) movements.
When I first read the second question, I was a little confused. I honestly believe it was due to my overthinking. However, putting one finger on your nose is an example of a bodily movement that does not require reflexes. This is because we are purposefully putting our finger on our nose (like poking it (our nose) with our index finger) there for, we made the conscious design to do so, meaning no reflex are involved