Respiration Flashcards Preview

Physiology > Respiration > Flashcards

Flashcards in Respiration Deck (36)
Loading flashcards...
1
Q

Two process in respiration

A

Internal respiration and external respiration

2
Q

Respiratory system include

A

Lungs
airways leading to lungs
and structures in the thorax which is responsible for moving air into and out of the lungs

3
Q

In airway branching what are the two zones

A

Conducting zone and respiratory zone

4
Q

What type of discharge for contraction of bronchi and bronchioles

A

Cholinergic discharge

5
Q

Nor Adri genic discharge for

A

Relaxation from beta-2 receptor

6
Q

Number of alveoli

A

300 million

7
Q

Length of alveoli

A

Zero. 5 µm

8
Q

Alveoli’s are made up of what type of tissue

A

Elastic tissue

9
Q

Alveoli are surrounded by

A

Pulmonary capillaries

10
Q

Which type of epithelial cells in the alveoli produces surfactant

A

Type two

11
Q

Three pressure consideration

A

Atmospheric pressure
Intra-alveolar pressure
Intrapleural pressure

12
Q

Atmospheric pressure also known as

A

Barometric pressure

13
Q

Range of atmospheric pressure at sea level

A

760 mm Hg

14
Q

Intrapulmonary pressure also known as

A

Intraalveolar pressure

15
Q

Intrathoracic pressure also known as

A

Intrapleural pressure

16
Q

Which pressure is less than atmospheric pressure

A

Intra thoracic pressure or intrapleural pressure

17
Q

Range of intrapleural pressure

A

756 MM Hg

18
Q

Pressure difference between alveolar pressure and plural pressure

A

Transpulmonary pressure

19
Q

What are the principal inspiratory muscles

A

Diaphgram and external intercoastal muscles

20
Q

Two accessory inspiratory muscles

A

Sternocleidomastoid

Scalenes

21
Q

Passive process is during what type of breathing

A

Quiet breathing

22
Q

Intrapleural pressure becomes more during

A

Inspiration

23
Q

During inspiration the pressure in the lung becomes

A

Below that of the atmospheric pressure

24
Q

What does spirogram to

A

Indicate changes in lung volume in different conditions of breathing

25
Q

Normal values for vital capacity in men and women

A

Men 4.5 L women 3 L

26
Q

What is the capacity created in which position

A

Standing position

27
Q

Fraction of vital capacity which is exhaled in a given time when subject tries to breath out fast as possible

A

Timed vital capacity

28
Q

What is helpful in differentiating obstructive and restrictive patents

A

Timed vital capacity

29
Q

Define peak expiratory flow rate

A

Maximum flow rate of air during single forced expiration

30
Q

Normal value of peak expiratory flow rate

A

400 to 600 L per minute

31
Q

What is COPD

A

Chronic obstructive pulmonary disease

32
Q

Formula for alveolar ventilation

A

AV=TV-dead space * RR

33
Q

What is Ficks law of diffusion

A

The effect of the factors that influence the rate of net diffusion make up this law of diffusion

34
Q

Temporary cessation of breathing

A

Apnea

35
Q

4 types of apnea

A

Deglutition
Voluntary
Vagal
Hyperventilation

36
Q

Hypoxia in poisoning of tissues

A

Hostotixic