respiratory system physiology

Question 1

functions of the respiratory system

Answer 1

1.for homeostasis
2.it regulates the bodys hydrogen concentration
3.create speech sounds and protect against germs

Question 2

what are the upper parts of the respiratory tracts

Answer 2

nose mouth pharnyx and larynx

Question 3

what are the lower parts of the respiratory tract

Answer 3

bronchial tree trachea and lungs

Question 4

anatomically the respiratory system is divided into

Answer 4

upper respiratory tract
lower respiratory tract

Question 5

physiologically the respiratory system is divided into

Answer 5

transmission zone and the respiratory zone

Question 6

what is the difference btw the transmission zone and the respiratory zone

Answer 6

the transmission zone transmits air to the respiratory zone
the transmission zone has all the anatomical sturectures

the respiratory zone is where gas exchange occurs between the air and the blood

Question 7

where does phonation or sound formation occur

Answer 7

message zone

Question 8

functions of each of the alveoli epithelial cells

Answer 8

type 1.gas excahnge
type 2.production of surfactants
type 3.found all over the lungs

Question 9

the parasympathetic innerevation of the lungs is provided by what nerve

Answer 9

Vagus nerve

Question 10

the parasympathetic innerevation of the lungs is provided by what nerve

Answer 10

vagus nerve

Question 11

the sympathetic innervation of the lungs is provided by what nerve

Answer 11

truncus sympathizer i.e tT2-T4 sympathetic ganglia

Question 12

the movement of the air into or out of the respiratory system is

Answer 12

ventilation

Question 13

whe does inspiration occur

Answer 13

when alveolar pressure falls bellow atmospheric pressure

Question 14

when does expiration occur

Answer 14

when alveolar pressure rises above atmospheric pressure

Question 15

when the inspiration occurs with the contraction of the diaphragm what is it called

Answer 15

abdominal breathing

Question 16

if ispiration occurs with teh contraction of ……….. and the movement of ………. this is called thoracic breathing

Answer 16

external intercoatsla muscle and ribs

Question 17

what limits the lung expansion

Answer 17

collagen

Question 18

what ensures the elasticity of the lungs after they expand

Answer 18

elastin

Question 19

the main mechanism of gas exchange btw the alveolar air and the blood pulmonary cappilaries is called what

Answer 19

diffusion