Wray- Respiratory System Flashcards Preview

Anatomy > Wray- Respiratory System > Flashcards

Flashcards in Wray- Respiratory System Deck (34):
1

What are Olfactory Receptors?

Allows the detection of smell

2

Purpose of network of blood vessels in the nose 

warms up the air

3

Purpose of nasal hair

Collect and remove dust particles

4

Purpose of mucus (2)

1. Moisten air

2. Trap bacteria and send them to stomach (via throat)

5

Sinusitis

Over production of mucus by sinus

6

Sinus headache: (3)

1. High mucus production

2. Blockage of passage between nasal cavity and sinuses

3. Vacuum is created

7

What is the pharynx?

Throat

- Connects the nasal passage --> larynx

8

What is the Larynx? (4)

Voice box:

- Lined with rings of hyaline cartilage

- Contains vocal cords

- Contains the epiglottis 

9

What is the trachea?

Windpipe

- Tube in front of espohagus

- Contains hyaline cartilage to keep it open

10

What is the bronchial tree?

1. Bronchi

2. Bronchioles

3. Terminal Bronchioles

11

Left Lung

1. Superior Lobe

2. Inferior Lobe

12

Right Lung (3)

1. Superior

2. Middle 

3. Inferior

13

What is the pulmonary pleura?

The membrane layer surrounding the lung

14

What is the parietal pleura?

 

Membrane layer surrounding the thoracic cavity
 
A_image_thumb

A image thumb
15

What is pleural space? (3)

1. Space between 2 membranes

2. Filled with pleural fluid

*Lung collapse

16

What is a lung collapse?

* Introductin air into pleural space as a result disconnect parietal from visceral pleura

* The lung is elastic by nature--> it will collapse but it cannot recoil

17

Inhalation: Step 1

1. Contraction of diaphram & intercostal muscles:

*Increase in thoracic cavity size

- Diaphram flattens

- Intercostal muscle lift the rib cage

18

Inhalation: Step 2

Lung cavity increases in size

(connection to thoracic cavity)

19

Inhalation: step 3

Decrease in pressure inside the lung (parietal vacuum)

20

Inhalation: Step 4

Atmosphere air (higher pressure) rushes in

21

Inhalation: Step 5

Pressure inside the lungs and atmosphere is equal

22

Exhalation: Step 1

1. Respiratory muscles relax

- thoracic cavity decreases

 

23

Exhalation: Step 2

Lung cavity volume decreases

24

Exhalation: step 3

Pressure in the lungs is high than the atmosphere

25

Exhalation: Step 4

Air moves from high --> low pressure; air leaves the lungs

26

Exhalation: Step 5

Air pressure is equal in both the lungs and atmosphere

27


Tidal Volume


Normal volume of air exchanged during breathing
(~500 mL of air)

28


Expiratory reserve volume


Air exhaled forcefully from lungs after normal exhalation
(1200 mL)

29


Inspiratory reserve volume


Air forcefully into the lungs after normal breathing
(3100 mL)

30


Residual volume


Air that always remains in the lungs even after expiratory reserve volume... no matter what
(1200 mL)

31


Emphysema


Destruction of the alveoli of the lungs

- Usually caused by smoking and pollution

- Decreases surface area of lung

- Limits the amount of gas exchange

32


Asthma (5)


Inflammation and overproduction of mucus in the airways

- Trachea and bronchi

- Triggered by: pollen, pollutant, allergic reaction

- No cure

- Treatment: fast acting inhaler --> dilate airway muscles

33


Bronchitis


Swelling and inflammation of bronchi

- Result of viral or bacterial infection

- Treatment:

1. immune response

2. antiviral or antibacterial medication

34


Pneumonia


Inflammation of the air sacs in the lungs

- Bronchitis can lead to pneumonia

- Caused by: bacterial or viral infection

Treatment:

1. Immune system

2. Anitviral or anitbacterial system