respiritory system

Question 1

describe the jeorny of air

Answer 1

air gets inhaled into the nostril / mouth and enters the nasal cavity/oral cavity . it travels past the pharynx then the larynx and enters the trachea . it ten travels down adn enters the lungs through the left or right main bronchus where it splits off into the bronchioles, it travels into through the alvioli duct and into the alvioli sac .

Question 2

what dose the nasal cavity do ?

Answer 2

filters the air that you breath in

Question 3

what is the perpouse of the pharynx ?

Answer 3

helps to breath and digest food

Question 4

what is the perpouse of the epiglottis ?

Answer 4

a flap of tissue that prevents food from entering the trachea

Question 5

what is the larynx ?

Answer 5

the voice box

Question 6

what is the trachea ?

Answer 6

the wind pipe conecting the laryx to the lungs

Question 7

what are the bonchi ?

Answer 7

conects trachea to left and right lung

Question 8

what are the bronchioles ?

Answer 8

air pasages inside the lungs

Question 9

what are the alvioli ?

Answer 9

smallest air pasages that carry out gasiouse exchange in the lungs

Question 10

what is the muscle in the neck that helps with breathing called?

Answer 10

sternocleidomastoid

Question 11

what chest muscle is active during inspiration and expiration ?

Answer 11

pectorals major

Question 12

what muscles are used during inspiration during exersise ?

Answer 12

sternoclieidomastoids (elivate the sternum)
scalenes ( elivate the upper ribs )
external intercostiles (elivate the ribcage )
diaphram

Question 13

what muscles are used during experation during exersise ?

Answer 13

intercastiles (depressed ribcage)
external obleques
rectus abdominals

Question 14

what dose tidal volume mean ?
resting value ?

Answer 14

the amount of air that moves in or out of the lungs with each respiritory cycle

0.5L

Question 15

what dose minute ventilation mean ?
resting value ?

Answer 15

the mesaurement of air that enters the lungs per minute
5-8Lpm

Question 16

what dose breathing frequency mean ?
resting value ?

Answer 16

the normal rate of breathing for an individual .
12/18 Bpm

Question 17

what happens in the lungs when a person inhales ?

Answer 17

the volume in th elungs increases meaning the presure in the lungs decreaces .

Question 18

what happend in the lungs when a person exhales ?

Answer 18

the lungs decreace in volume meaning the preasure in the lungs increases .

Question 19

explain gass exchange

Answer 19

there is a high consentration of oxegen in the alvioli and low consentration of oxegen in the capillaries this created a consentration gradient that allows diffusion to happen esaily, capillaries and alvioli have thin walls for a shor difusion path .

Question 20

what dose partial preasure mean?

Answer 20

the preasure of a single type of gass in a mixture of gasses (the grater parcial presure difference between the 2 areas the more rappid the movment of gasses is)

Question 21

what are the short turm effects of exersise on the respiritory system ?

Answer 21

Increased volume of air inspired in one breath

Increase frequency in breath

Question 22

what are the long turm efects of exersise on the rispiritory system ?

Answer 22

Increased number and diameter of capillaries around the alveoli
Intercostal muscles and diaphragm muscles grow stronger allowing them to lift the ribcage higher allowing more air into the lungs

Intercostile muscles and diaphragm are able to contract with grater force increasing the pressure differences .

Question 23

what is the efect of a warm up on the respiritory system ?

Answer 23

Slowly increasing the breathing frequency

Question 24

what is the efect of a cool down on the reispiritory system ?

Answer 24

Slowly decreases the breathing frequency .