expr:class='"loading" + data:blog.mobileClass'>

Sunday, 6 April 2014

We Danced All Night to the Best Song Ever


Activity: DANCE

While dancing the body systems that one would depend on even more than in day to day life would be:
  1. Respiratory
  2. Circulatory
  3. Sensory Awareness/Central Nervous

Although the having sufficient food and hydration (digestive system) and using the restroom is important before dancing, the three systems above must be working very hard while actually dancing.


Respiratory System: Since dancing involves constant, swift movement the respiratory system must be doing the best to make sure the dancer has enough oxygen to move. The respiratory system and the circulatory system work along side one another to ensure that air is coming into the body and then being brought throughout the rest of the body.

Circulatory System: While dancing all parts of the body are working extremely hard and therefore must be receiving enough nutrients and oxygen to continue. As the body is moving at varying speeds while doing intense movements more and more oxygen and nutrients are needed from the blood. After dancing for a while one’s heart will be beating hard as it was functioning at a more than normal speed to bring oxygen everywhere.

Sensory Awareness/Central Nervous: As the central nervous system deals with both comprehending surrounds and balance and movement it would be integral to dancing. While dancing along to music one must keep count of where in the exercise or music as well different movements at different times require the work of the frontal lobes of the cerebrum. Keeping oneself balanced while doing a releve in ballet or the moonwalk during Billie Jean is all because of the cerebellum.


Changes in body functions while/after dancing include:
  • heart beating quickly (the heart needing to distribute blood throughout the body quickly)
  • feeling tired (while dancing enzymatically produced is used up because of constant intense movement)
  • increased appetite and thirst (since energy was used up while dancing the body requires more fluid and food to replenish it)

Chronic Asthma

Mainly Affects this System: Respiratory

Chronic asthma is a log term disease in which one's airways are more sensitive and breathing becomes difficult. 

When a person with asthma does intense exercise such as dance or is exposed to things like smoke or some animal hairs their airways react. The bronchioles and other airways of the respiratory system tighten and spasm leaving little room for air to pass through. As well airways could become inflamed and filled with an abundance of mucus again making it very difficult for air to pass through the trachea or bronchioles.

Generally when somebody with asthma does intense exercise including dance their airways will tighten, leaving little space for air to get through. 

When triggered symptoms of asthma include: 

  • Wheezing
  • Shortness of breath
  • Chest Tightening
  • Coughing
Even if somebody has asthma they should most definitely be exercising! 

Preventative measures can be taken to lower the severity of asthma while exercising would be warming up and cooling down gradually. Inhalers are a medicinal treatment that go directly to the lungs and work to reduce swelling, dry up mucus and all in all make airways less sensitive. 


   

Saturday, 5 April 2014

Potty Time


In order to rid the body of waste products that could/are harmful the excretory system is able to rid these toxic wastes from the body. There are also quite a few steps involved in the final processes of the excretory system. 

How does this happen?

Amidst blood's circulation throughout the body it stops at the kidney. Once at the kidney the blood delivers waste that it has been carrying that it does not need such as water, minerals and a nitrogen  amino group (Nh2) had been taken apart from amino acids before they were converted into energy. Nh2 then unites with a hydrogen proton and ammonia or Nh3 is created in the liver. Ammonia is then transferred into the blood and then combines with other waste products of the body in the kidney including various amino,water and other nutrients. This amalgamation of waste liquids in the kidneys becomes urine. The urine then gets funnelled through two ureters tubes (one per kidney) until it reaches the bladder. Consider the bladder a storage space for urine until the bladder expands and sends nerve signals through the body when it's full and the urine must leave the body out of the urethra. 

Major Organs:
Kidney: Most people have two kidneys located in the rear of the abdomen. Each kidney has three zones: renal medulla(kidneys inner layer), renal cortex (kidneys outer layer) and the renal pelvis (brings the urine away from the kidney using ureter).Blood enters the kidney by the renal artery which then splits into countless minuscule arterioles which eventually lead to the Bowman's Capsules of nephrons. The Bowman's Capsules are at the end of a kidney tubule and are a large cluster of blood capillaries and a thin two cell walled capsule. Inside the Bowman's Capsules are nephrons which are encompassed by capillaries so the blood can travel in and out. Nephrons utilize filtration pressure to remove wastes from the blood and urine is created. See above   

Liver: The liver is placed on the right side of the torso protected by the rib cage. Underneath the liver are the gallbladder and parts of the intestines and pancreas. There are two sides of the liver known as the right and left lobes. When blood comes from the digestive system the liver's primary function is to detoxify it. As well the liver detoxify (or attempts to) chemicals, accepts medicine into the body and creates bile which will go through the intestines and up the other way of the digestive system. Another function of the liver is to create proteins that are extremely important for blood clotting. 


    

Friday, 4 April 2014

Breaking Down Digestion


 

In order to convert food into energy and nutrients, a group of organs that make up the digestive system are required throughout the entire body.
Food passes through the GI (Gastrointestinal) tract which is comprised of the oral cavity, pharynx, esophagus, stomach, small intestines, and large intestines,as well there are "accessory organs" 

What is what in the digestive system?

which assist in digestion including:teeth, tongue,glands, liver, gallbladder, and pancreas.

Throughout the digestive system there are six functions that ensure the body receives the nutrients and energy it requires:
  • Ingestion (taking  food in)
  • Secretion (substances that are produced in a cell, organ or gland and then discharged in the form of saliva, bile etc.)
  • Mixing and movement (food, liquids and nutrients moving and mixing together throughout the digestive system including the stomach and intestines)
  • Digestion (breaking food down mechanically and enzymatically into energy or nutrients)
  • Absorption (once the nutrients have been broken up they are absorbed into cells)
  • Excretion (expelling waste)

Major Organs:

Esophagus: A muscular tube of about 8 inches connects the throat to the stomach and is behind the trachea and heart but is in front of the spine. The inside of the esophagus is coated in pink muscle called mucosa. Before getting to the stomach the esophagus passes through the diaphragm. At the top of the esophagus is a bundle of muscles called the upper esophageal sphincter (UES) which regulate breathing, eating, and vomiting. The UES also ensure that food and secretions are unable to go down the trachea. The lower esophageal sphincter are another group of the muscles but lower down, near where the esophagus meets the stomach. The lower esophageal sphincter is in charge of making sure contents from the stomach do not travel upwards through the trachea. 


Stomach: The stomach is located on the left side of the abdomen and is the muscular organ that takes in food via the esophagus. Rugae, ridges of muscle tissue secrete enzymes and acids from the stomach break down the food we eat and digest it. Occasionally the stomach mixes the food a bit in order to aid digestion. Underneath the stomach is the pyloric sphincter which opens to bring the broken down food into the intestines.  


Intestines:Intestines are tubes of tissue that run throughout the digestive system. They start at the stomach and end at the rectum which begins the excretion system. A majority of the body's absorption of nutrients occurs along the intestines, generally the small intestine. As well, the small intestine is lined with three types of muscle: duodenum, jejunum and ileum. The small intestine measures at about 20 feet long and approximately an inch in diameter. While the large intestine measures at around 5 feet in length and 3 inches in diameter. The large intestine is also known as the colon and creates stool from liquids and causes urination.