Why is it important that the body have two control systems rather than one?
Well, our nervous and endocrine systems are there to differentiate the kinds of control, as well as provide different outlets for body control under different circumstances. Our neural pathways are a more instantaneous response system, allowing for immediate movement and reactions to stimuli. However, our hormones control growth and development, and while they are affected by the environment and can act immediately (epinephrine/adrenaline), this system is more of a passive, over time control of body functions. Without either one, humans would not be able to neither think nor grow properly. Only together are they able to shape a mere fetus into a human being capable of many things.
Tuesday, February 7, 2012
Saturday, January 21, 2012
BOW 15
What is your take away lesson from Dead Men Do Tell Tales? Could you be a forensic anthropologist? Why or why not?
I think that this book is a great resource for debunking common misconceptions about dead bodies and forensic investigations. Not only does it remove the general dark, evil feeling of death from a body, and properly points all that negativity at the murder and the act of dying itself, but it also analyzes crimes and various mutilations and deathly causes in a way that almost interests the reader, so that they may not fear death, but try to understand it. However, I do not think that I could be a forensic anthropologist largely due to the fact that dealing with bodies everyday, while necessary and not as bad as one would think, would put me into a cynical and probably depressed state that I would rather not live out. Although I would not mind working with one, because I'm sure anyone interested in this field must be an interesting person.
I think that this book is a great resource for debunking common misconceptions about dead bodies and forensic investigations. Not only does it remove the general dark, evil feeling of death from a body, and properly points all that negativity at the murder and the act of dying itself, but it also analyzes crimes and various mutilations and deathly causes in a way that almost interests the reader, so that they may not fear death, but try to understand it. However, I do not think that I could be a forensic anthropologist largely due to the fact that dealing with bodies everyday, while necessary and not as bad as one would think, would put me into a cynical and probably depressed state that I would rather not live out. Although I would not mind working with one, because I'm sure anyone interested in this field must be an interesting person.
Tuesday, January 17, 2012
BOW 14
Pick three factors that can change your heart rate. How do they change your heart rate? (i.e. faster, stronger, slower, weaker) For each give another system affected by the change in heart rate.
Temperature
-Can either increase or decrease heart rate, higher temperature generally means faster heart rate, and the inverse is also true. This can also affect the muscular system, with lack of heat slowing down heart rate and blood flow, making movement/reaction delayed.
Alcohol
-Generally decreases heart rate, relaxes nervous system and dull motor functions.
Adrenaline
-Tends to increase heart rate, all the blood flowing at such a high rate makes the nervous system and motor functions seem to react faster.
Temperature
-Can either increase or decrease heart rate, higher temperature generally means faster heart rate, and the inverse is also true. This can also affect the muscular system, with lack of heat slowing down heart rate and blood flow, making movement/reaction delayed.
Alcohol
-Generally decreases heart rate, relaxes nervous system and dull motor functions.
Adrenaline
-Tends to increase heart rate, all the blood flowing at such a high rate makes the nervous system and motor functions seem to react faster.
BOW 13
Based upon this week's labs why is it hard for a fit person to get an exercise benefit?
Well as we have tested, thoroughly, over and over again how heart rate is affected by repetitive exercise and how it affects reaction time, it is apparent that benefit from exercise takes time, because in order to get the heart pumping more steadily, one must train it to be used to beating harder and faster, so that each beat causes blood to flow faster and transport materials throughout the body. In order to do this, the heart must be strained, just like any other muscle. But without adding resistance to its actions, the only way to strengthen the heart is by making the body push blood faster. This is done with cardio-based exercise.
Well as we have tested, thoroughly, over and over again how heart rate is affected by repetitive exercise and how it affects reaction time, it is apparent that benefit from exercise takes time, because in order to get the heart pumping more steadily, one must train it to be used to beating harder and faster, so that each beat causes blood to flow faster and transport materials throughout the body. In order to do this, the heart must be strained, just like any other muscle. But without adding resistance to its actions, the only way to strengthen the heart is by making the body push blood faster. This is done with cardio-based exercise.
BOW 12
What similarities have you noted between a mink musculature and a human's? What has surprised you most about the mink?
It occurred to me that mink muscles are very similar human muscles in the number, arrangement, and attachments. Granted, the mink tend to be different in shape and size, because they use different sets of muscles differently to get around. But in the most basic of comparisons, you can say that both a mink and a human have similar muscle systems. And that is probably the most surprising thing, the fact that such a different animal from a totally different genetic tree could have such similar muscles compared to mine.
It occurred to me that mink muscles are very similar human muscles in the number, arrangement, and attachments. Granted, the mink tend to be different in shape and size, because they use different sets of muscles differently to get around. But in the most basic of comparisons, you can say that both a mink and a human have similar muscle systems. And that is probably the most surprising thing, the fact that such a different animal from a totally different genetic tree could have such similar muscles compared to mine.
Thursday, December 8, 2011
BOW 11
Fusiform Muscles
Quadrate Muscles
Flat w/Aponeurosis
Pennate
Unipennate
Bipennate
Multipennate
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