ch 22/23 respiratory anatomy and physiology

whats this?

whats this?

alveolar ducts

whats this?

alveolar sac

whats this?

alveolar capillaries

whats this?

alveoli

whats this?

right primary bronchi

whats this?

left primary bronchi

whats this?

bronchiole

whats this?

terminal bronchioles

whats this?

respiratory bronchioles

whats this?

larynx

whats this?

hyoid bone

whats this?

epiglottis

whats this?

lungs

what section of the lung is this?

right upper lobe

what section of the lung is this?

right middle lobe

what section of the lung is this?

right lower lobe

what section of the lung is this?

left upper lobe

what section of the lung is this?

left lower lobe

what part of the lung is this?

apex

what part of the lung is this?

base

whats this?

nasal cavity

whats this?

nares

whats this?

Superior nasal conchae

whats this?

pharynx

whats this?

pleural cavity

whats this?

pulmonary capillary bed

whats this?

trachea

whats this?

hyaline cartilage rings

whats this?

carina

whats this?

trachealis muscle

whats this?

uvula

explain atmospheric pressure

pressure exerted by the gases in the atmosphere

explain boyle’s law

at a constant temperature, the pressure of gas varies inversely with volume

whats this and what role does it play?

diaphragm and it’s the main inspiratory muscle

explain what occurs with expiration

1. the volume of the thoracic cavity decreases

2. The diaphragm relaxes

3. ribs are decreased and the thoracic cavity narrows

4. The inferior portion of sternum move posteriorly (to the back)

5. The thoracic cavity compresses

whats this and what role does it play

external intercostal muscles and assists the diaphragm during inspiration

explain inspiration and the steps

1. the volume of the thoracic cavity increases

2. The diaphragm contracts and moves down

3. ribs are elevated and the thoracic cavity widens

4. inferior portion of sternum move anteriorly (to the front)

5. thoracic cavity expands

explain intrapulmonary pressure

the force exerted by gases in the alveoli

explain pulmonary gas exchange

the diffusion of gases across the respiratory membrane in the pulmonary capillaries or alveoli

explain pulmonary ventilation

process of air flowing into the lungs (inspiration) and out of the lungs (expiration)

explain tissue (systemic) gas exchange

as blood moves past the body tissues, co2 leaves and 02 enters via diffusion

trace a molecule of o2 from entrance of respiratory tract to alveolus

1. nasal cavity

2. nasopharynx

3. orophaynx

4. laryngopharynx

5. larynx

6. trachea

7. primary bronchus

8. secondary bronchus

9. tertiary bronchus

10. terminal bronchioles

11. respiratory bronchioles

12. alveoli

whats this

trachea

whats this

bronchioles

whats this

alveoli

whats the relationship between pressure and volume according to boyles law

the relationship between pressure and volume is inversely related.

according to boyles law, if pressure decreases, volume ___

increases

according to boyles law, if pressure increases, volume ___

decreases

what drives the movement of air into and out of the lungs

the differences in pressure between the lungs and atmosphere drive pulmonary ventilation.

Whats this

Middle nasal conchae

Whats this

Inferior nasal conchae