Sheep Dissection Videos

Sheep Heart Questions

1. The pericardium surround and protects the heart, holding it in its place
2. Arteries have thicker walls, but are smaller in size compared to veins
3. The auricle enables the atrium to hold larger amounts of blood.
4. The ventricles have thicker walls compared to the atria. 
5. (10a) the coronary sinus the wide venous channel on the posterior surface of the heart that collects blood from the coronary circulation and returns to the right atrium.
6. (10b)  it brings the oxygen deprived blood from the body
7. (10c) the tricuspid valve is located between the right atrium and ventricle and prevents backflow from the right atrium
8. (Q6) 
   
9. (Q8)
10. (Q9) The semilunar valves are located between the right ventricle and pulmonary artery and prevents blood from flowing from the artery back into the heart
11. (Q10a) The restricted blood flow causes pressure in the vessels that goes through the rest of the circulatory system; the pressure causes fluid to leak into surrounding tissues which can cause swelling in the legs and feet.
12. (Q10b) Valve disease on the left side of the heart can cause irregular heartbeat (arrhythmia), which can eventually lead to heart failure.
13. (Q11)
14. 
    (Q12) The right side of the heart deals with deoxygenated blood and pumps blood to the lungs; the left side of the heart deals with oxygenated blood and thicker walls since it has to pump oxygenated blood to the rest of the body.
15. (Q13)

Unit 3 Blog Reflection

  In this unit, I learned about how various lifestyle choices can directly impact one's circulatory and respiratory system. The respiratory removes small particles from entering the body and includes the nose, pharynx, bronchioles, trachea, and lungs. On the other hand, the circulatory system includes the heart, small/large intestines, and kidneys, where it specializes in regulating pH, transferring nutrients to different parts of the body, and providing the blood with oxygen. When one rarely exercises, bombards his or her diet with large amounts of unhealthy fats (omega 6) and salt, it puts the individual at a greater risk for high blood pressure, aneurysm, atherosclerosis, stroke and other harmful diseases. By consuming more Omega 6 instead of Omega 3 and filling your diet with healthier cholesterol, one can increase HDL in the bloodstream, which can actually decrease the amount of harmful cholesterol, LDL. Overall, I really enjoyed this chapter since I was able to learn a lot about the circulatory and respiratory system; I found it really interesting that men and women had such different stroke symptoms since I perceived that the same disease would affect everyone in the same way. 

   While I understood the majority of the chapter, I found it difficult to memorize the different parts of the heart and which part was responsible for what function. While the sheep heart dissection was helpful in having me learn which parts were responsible for what function, it was still kind of difficult to learn which part went where because the actual heart differed greatly from the diagram. 

   After Unit 2, I realized that I definitely needed to sleep more because I was averaging about 5-6 hours of sleep nightly. Overall, I've realized that I've been sleeping around 6-7 hours nightly; in order to be less sleep-deprived, I intend on waking up slightly later or taking more naps in the afternoon. 

Monday Wellness Reflection

 Monday Wellness:
https://docs.google.com/presentation/d/1-tHQTdbCjJW7XtZ2bez8AKy3iyRTWwcbgfhJehLBqdM/edit


 After briefly discussing ideas for our Monday Wellness presentation, we decided that we wanted to have a project that related to either anxiety or stress since it was a topic that the majority of the class could easily relate to. A fellow classmate advised us to talk about the importance of self-esteem and how it could either positively or negatively impact a person's life choices. Not only was low self-esteem a topic that the bulk of the class could relate to but it was also an ideal that students weren't exposed to very often.

   Before starting the research for the presentation, I knew very little about self-esteem. While I was aware that self-esteem could cause individuals to lose drastic amounts of weight and can lead to numerous weight problems including bulimia as well as anorexia nervosa, I was unaware that it could lead to increased amounts of cortisol (the stress hormone), increased blood pressure, irregular heart rate, hypertension, as well as fatal diseases including heart disease and even cancer. It shocked me that there were such dire consequences for having a low self-esteem. Also, I was shocked to learn some of the reasonings behind having a low self-esteem. For instance, I was surprised to learn that self-esteem is heavily shaped by childhood experiences or memories; if an individual encountered a traumatic experience at a young age, he or she will almost always have low self-esteem. Contrary to the research, I originally perceived that having a low self-esteem was heavily influenced by social media, where one is constantly attempting to change his or her diet or exercise regime in order to be like a specific celebrity. Furthermore, I never realized how having a low-self esteem can heavily impact one's entire life, from his or her simple decisions to the fear of pursuing difficult goals, simply due to the fear of failure.

  If an individual constantly has low self-esteem, it can negatively impact the individuals around us as well as our critical life choices. This challenge can easily be solved by exercising, doing activities that one enjoys, avoiding comparison to others, or simply sharing stressors with friends or family. By doing so, one can be sure that his or her self-esteem will be elevated greatly. However, by hiding stressors from others, comparing yourself to other individuals, or stressing about minor things, it can lead to individuals forming toxic relationships and avoiding healthy ones, harm one's self-confidence, and may cause individual to be fearful of pursuing difficult aspirations that can benefit them either professionally or educationally.
   Overall, I would give myself a 10/10 because I completed my part of the PowerPoint and researched the physical benefits of having a high self-esteem, so I was educated on what self-esteem is, why it is so important, and possible ways for individuals to positively impact it. In general, I really enjoyed learning about the relevance of self-esteem in our daily lives, since many individuals in our society may be affected by a low self-esteem due to the large amounts of stress and constant comparison to others; however, possessing a low self-esteem is definitely reversible and can benefit one's overall well-being.