Ventilation and Control of the Respiratory System Flashcards Preview

SCT1 Physiology Module 7 > Ventilation and Control of the Respiratory System > Flashcards

Flashcards in Ventilation and Control of the Respiratory System Deck (16)
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1
Q

Ventilation of the human body is the process of ___________ and ___________.

A

INHALATION
and
EXHALATION

2
Q

During inhalation muscle ____________ expands the lungs and thoracic cage.

A

CONTRACTION

3
Q

Thoracic volume INcreasing and thoracic pressure DEcreasing explains which type of ventilation?

A

INHALATION

4
Q

Thoracic volume DEcreasing and thoracic pressure INcreasing explains which type of ventilation?

A

EXHALATION

5
Q

During inhalation, air rushes _____ to normalize the pressure.

A

IN

6
Q

During exhalation, air rushes _____ to normalize the pressure.

A

OUT

7
Q

When is exhalation a passive process?

A

WHEN AT REST

8
Q

During exhalation, muscles _________ as there is an elastic recoil of the thoracic cage.

A

RELAX

9
Q

Name the term for the largest volume of air that can be brought into the lungs?

A

FORCED VITAL CAPACITY

FVC

10
Q

Name the term for the largest volume of air that can be exhaled in one second (after maximal inhalation)

A

FORCED EXPIRATORY VOLUME

FEV1

11
Q

Name the term for the volume of air in one regular breath?

A

TIDAL VOLUME

Vt

12
Q

Control of the respiratory system is handled by the control centre and the peripheral ________________.

A

peripheral CHEMORECEPTORS

13
Q

The respiratory control centre in the brain stem, controls the ________ and ________ of breathing.

A

RHYTHM
+
RATE

14
Q

The central chemoreceptors of the central control, detect rising concentrations of CO2 and H+ and respond by _____________ ventilation.

A

INCREASING

15
Q

Peripheral chemoreceptors are located in which 2 places?

A

CAROTID ARTERIES
+
ARCH OF THE AORTA

16
Q

The peripheral chemoreceptors detect rising concentrations of CO2 and H+ and/or dropping O2 concentrations respond by _____________ ventilation.

A

INCREASING