Respiratory Differences Between Children and Adults

In my Anatomy class we learned some of the respratory differences between children and adults. Children have smaller lungs, but per pound, children breathe a greater volume of air per pound bodyweight than adults. Children also have a lower Tidal Volume (TV). This means that children breathe faster and more frequently during exercise. Children have to breathe more air to provide the same quantity of oxygen.

Respiratory Physiology

In my Anatomy class we learned about the Respiratory System. There is a certain way that the air flows in and out of our bodies. There are two tracts to our Respiratory System: The Upper Respiratory Tract (URT) and The Lower Respiratory Tract (LRT). The air moves into the mouth (oral cavity) and nose (nasal cavity) then to the pharnyx, the epiglottis (open or closed), then to the larynx (contains vocal cords). This all takes place in the Upper Respiratory Tract (URT). After the air goes to the larynx the air moves to the trachea, to the bronchi, then to the bronchial tree, then to the alveoli where oxygen and carbon dioxide are exchanged, then the air travels out of the lungs in the opposite path. This part of the air flow occurs in the Lower Respiratory Tract (LRT).

Assessing the World Wide Web

Today in Technology class we learned about Assessing the World Wide Web. WWW is a subset of the internet that provides access to information through a graphical user interface. WWW allows you to look at information stored on computers around the worls by typing in an address or pointing the mouse at a link and clicking. Different links access different pieces of information on different computers. WWW is the biggest thing driving computer sales today.

Cardiovascular Differences Associated with Children

In Anatomy I learned that children have a proportionally smaller heart than adults, therefore a child's stroke volume (SV) is lower. In order to maintain cardiac output (Q), the their heart rate (HR) must be higher. High exercise heart rates are normal if no other signs of distress are present. A child's heart rate (HR) recovers faster than an adult's. A child's Max heart rate (HR) does not change considerably between the ages of 7-15. The average Max heart rate (HR) is 185-215, therefore (220-age) is not appropriate for this age group.

The Heart

The other day in my Anatomy/Physiology class we learned the primary functions of the Cardivascular System (CV). There are four functions of the Cardiovascular System. The first function is to transport Oxygen and nutrients to the cells. The second function is to transport Cardon Dioxide and waste away from cells. The third function is to regulate body temperature, pH levels, and fluid balance. Lastly, the Cardiovascular System protects the body from blood loss and infection. The heart has four chambers which includes two atrias and two ventricles. The heart also has two pumps which are located on the right and left side of the heart. I really enjoyed learning about the heart, although there were times where I was a bit confused, but after studying I thought it was the most amazing organ in my body.

Using Telecommunication Applications in P.E.

The definition of telecommunication is any type of data transfer between two points. A network consists of individually controlled computers that are in communication with one another. No cable is needed when there is a wireless network. Networks can connect two individuals in an office, or can link a group of offices in a school. Networks also allow computers to share hardware devices such as laser printers, color printers, and scanners, and to exchange messages between computers. If there is no wireless system or cable to a network, then some type of modem is needed. The three types of modems are dial-up, cable, and DSL along with the three sizes which are external, internal, and PC card. In order to use the modem, a telephone wire or cable wire needs to connect from the wall to the line port on the modem.

How to Look Thinner Instantly

I was looking on WebMD.com the other day and I read something that I found really interesting. There is a way to look up to 10 pounds thinner, have your clothes fit better, and increase your confidence. These things can occur if you pay attention to an often neglected area of body conditioning, your posture. This doesn't seem to awful hard does it? I know I could work on my posture especially now if I can lose up to 10 pounds! Personal trainer, Sue Flemings says, "when your body is in alignment, your head is sitting squarely on your shoulders, and your shoulders are pulled back with your core muscles pulled in, you not only increase your height and stretch out your body mass, making you look thinner, but you're also projecting an image of confidence, of being more alert, and more youthful -- all of which makes you look more attractive." Also, having a better posture may get rid of tension headaches and lower back pain as well.