Zadanie 3c
Explain how muscle activity produces a maximal inspiration.
- Materiał graficzny
Pressure changes in breathing
Explain how rib and diaphragm movements, with relevant muscles, produce inspiration and expiration.
Tę umiejętność sprawdza 10 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 10 Otwórz w wyszukiwarce z filtrami
Zadanie 7
An unaffected couple has a child with phenylketonuria, an autosomal recessive disorder. Use P for the functional allele and p for the recessive allele. Other parts concern respiratory defence and gas exchange. (a) Describe how the disorder can be inherited in…
Zadanie 15
The curve shows quiet breathing. What muscle actions correspond to time T? A. Ribs move upwards and outwards while the diaphragm contracts B. Ribs move downwards while the diaphragm contracts C. Ribs move upwards while the diaphragm relaxes D. Ribs move…
- Materiał graficzny
Zadanie 16
Which sequence of events causes normal quiet inspiration? A. Diaphragm relaxation reduces thoracic volume and lowers pressure B. Diaphragm contraction increases thoracic volume and lowers alveolar pressure below atmospheric pressure C. Abdominal compression…
Zadanie 4a
Explain how diaphragm contraction brings air into the lungs.
Zadanie 4b
State another muscle group whose contraction contributes to inspiration.
Zadanie 28
What initiates the increase in thoracic volume during a normal inspiration? A. Air forcing the diaphragm upwards before the muscles act B. An increase in intrapulmonary pressure above atmospheric pressure C. Relaxation of all inspiratory muscles at once D.…
Zadanie 5
The two model traces show one resting respiratory cycle. (i) State the tidal volume. (ii) Calculate the ventilation rate. (iii) Explain how thoracic muscles produce the pressure change during the first second.
- Materiał graficzny
Zadanie 7
(a) Outline changes to atmospheric composition that living organisms have caused. (b) Explain how natural selection changes a population. (c) Explain how ventilation changes pressure inside the lungs.
Zadanie 27
At 2.5 s the pressure shown drives air out of the lungs. Which muscle activity would support forced expiration? A. Contraction of the diaphragm and external intercostals B. Relaxation of every respiratory muscle while thoracic volume increases C. Contraction…
- Materiał graficzny