AP2 Respiratory System questions, help!

emilyRNwannabe · Mar 30, 2009

choc0late · Mar 31, 2009

hi emily, i can't help with all your questions but will answer the ones i know.

1. is the trachea part of the upper respiratory tract or lower? lower, the laynx turns into the trachea

2. why are the thyroid cartilage and cricoid cartilage of the larynx made from hyaline cartilage?

3. what structures are involved in speech production? vocal cords?

4. what is the irony of the bronchial veins merging with the pulmonary veins? i'm just guessing that it's because pulmonary veins are carrying oxygenated blood maybe?

5. scientifically how do we depict partial pressures? is that what you multiply to get them? the pp's are given based on the atmosphere which is 760mm hg i believe it is. blood leaves the aveoli with a po2 of about 100mm hg, and a pco2 of roughly 40mm hg

6. compare atmosphere and alveoli in terms of gases present. hint use text book! atmosphere vs alveoli, n2 atmosphere 78%, alveoli 75%, o2 atmosphere 20% alveoli 13%, co2 atmosp .04%, alveoli 5%, h2o atmosp .5% alveoli 6%

is this talking about that chart on page 856? (the green marieb book with tennis player on the front) if so, could someone explain it?

Unique87 · Apr 1, 2009

These are the answers that I know. I just had a test on the respiratory sys.

2. Why are the thyroid cartilage and cricoid cartilage of the larynx made from hyaline cartilage?

In order to keep the trachea open

3. What structures are involved in speech production? vocal cords?

The larynx and the true vocal cords. As air passes over the true vocal cords they vibrate and produce sound. The false vocal cords don't produce sound but are thought to aid in lubrication.

I hope this helps.