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College aantekeningen Leerjaar 1 - Blok A - Gezondheid - Hoorcollege 6

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In deze hoorcollege aantekeningen staan aantekeningen van de stof die wordt behandeld tijdens hoorcollege 6.

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In de longblaasjes vindt de uitwisseling plaats van zuurstof naar het bloed toe en CO2 uit het
bloed.

Ademminuutvolume = frequentie X Vt
Vt = ademvolume of teugvolume

AMV → ademminuutvolume
● In rust: 6 liter/minuut
● Bij inspanning: toename tot 50 liter/minuut of meer

Diffusie → Is een passief proces, dus kost geen energie. maar er is wel een
concentratie verschil nodig.

O2 en CO2 transport in het lichaam:
Inspiratie → Inademing
Expiratie → Uitademing

Handhaven Homeostase (=intern milieu). Aanpassing transport aan activiteit:
- O2 en CO2 transportcapaciteit bloed
● Per liter bloed
● Hoeveelheid erytrocyten (=rode bloedcellen)

- Bloedstroom snel genoeg
● Hartminuutvolume (HMV) aanpassen
● Herverdeling bloed
○ Hoger % van HMV naar spieren laten gaan.

- Contacttijd lang genoeg voor diffusie
● Groot gaswisselingsoppervlak
○ Weefsels: capillairen netwerk
○ Longen
■ Netwerk longcapillairen
■ Longblaasjes: groot oppervlak

Longblaasjes en longcapillairen:
A. Pulmonalis → Gaat naar de longen toe
- Arteria Pulmonalis
- Longslagader
- O2- arm

V. Pulmonalis → Gaat van de longen af.
- Vena pulmonalis
- Longader
- O2- rijk


Hemoglobine:
Hemoglobine → Is een groot eiwit-molecuul dat uit 4 eiwitten bestaat.

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Uploaded on
October 26, 2021
Number of pages
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Written in
2020/2021
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Hogeschool utrecht
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