Brianna & Kamalvir - blood flow vid

Heart dissection

Inside yo body

Lympahtic System
Important part of your immune system.

Why do your lymph nodes swell?

First of all, what are the lymph nodes?
Lymph nodes are small glands throughout your body that transport nutrients and waste between body tissue and your bloodstream

Lymph nodes swell as a result of injuries, sickness (bacterial/viral infections) or tumors developing in/near a lymph node. Lymph nodes are filled with white blood cells called macrophages and lymphocytes. When you are ill, these cells get put into action to fight the disease, so they swell. As bacteria invades the nodes, they begin to feel hard, they inflame, and they may begin to hurt. It is easy to tell the problem based on what nodes are swollen.
For exmaple:

• Swollen nodes around the throat/underarms/groin: cold/flu
• Large, swollen nodes under the thorat and the jaw: mumps
• Glands above the collarbone: infection/tumour of lungs/breasts/neck/abdomen. 
• Etc, etc.

Exploring pH Lab: Picture Result

Respiration

This occurs within the respiratory system. During inpiration, the intercostal muscles contract, the diaphragm descends, and the rib cage rises. The thoracic cavity volume also increases, stretching the lungs. 

During expiration the intercostal muscles relax, the diaphragm rises, and the rib cage descends. The thoracic cavity volume decreases, causing the the lungs to recoil.

When you breathe in, the air moves into the lungs through the trachea or the windpipe then the pharynx and larynx. Then it branches into the bronchi, then bronchioles, which finally reach into each lung.

Lungs are cool

Lung growing inside of a man??:
It's has happened!
Read about it here: http://www.telegraph.co.uk/news/worldnews/europe/russia/5152953/Surgeons-find-fir-tree-growing-inside-patients-lung.html

Can you have an artificial lung?:
Yes!
Read about it here: http://en.wikipedia.org/wiki/Artificial_lung

What the heck is pneumonia?:
Pneumonia is a dangerous disease that makes it harder for your lungs to absorb oxygen from the air you breathe.

REALLY interesting facts about lungs:
Read about it here: http://prettywomandeb.wordpress.com/2010/10/14/10-fun-facts-about-your-lungs/

5 lung facts you probably do not know:
Read about it here: http://www.theasthmamom.com/2008/03/07/5-lung-facts-you-might-not-know/

Tuberculosis (What is it and what are the symptoms/causes)?:
Read about it here: http://www.lung.ca/diseases-maladies/tuberculosis-tuberculose/what-quoi/index_e.php

What happens when your lung fails?(causes and symptoms):
Read about it here: http://medical-dictionary.thefreedictionary.com/Lung+failure

Vital Capacity

VITAL CAPACITY.

1. Comparing my vital compactiy to Ashpreet, Monica and Kamalvir, there was a decent gap between ours. Me and Ashpreet got the same capacity, but Monica and Kamalvir's were significantly different. Monicas was almost a whole litre larger and Kamalvir's was almost a whole litre less. I think vital capacites can differ based on a person's activites. E.g, excercising, playing sports, playing instruments. Or even them in general, e.g, height, weight, and sex.

2. According to google, a usual breath is about 500mL, or half a litre. I think our breaths are the volume that they are because lungs are very strong and on average that is how much a person needs to survive.

3. During usual exhalation you're not letting out as much breath as you're capable of. Whereas with forcefully exhaling your breath, you're letting out as much as you are possibly capable of. When you're doing things like exercising/instrument playing/singing, you're exerting air forcefully and not as much as a normal person doing normal breathing would be.