100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Samenvatting Human Biology $9.21   Add to cart

Summary

Samenvatting Human Biology

 30 views  0 purchase
  • Course
  • Institution

Samenvatting menselijke biologie

Preview 4 out of 65  pages

  • January 6, 2023
  • 65
  • 2021/2022
  • Summary
avatar-seller
INHOUD

Thema 1: Dierlijke ontwikkeling .............................................................................................................................. 4
Bevruchting ......................................................................................................................................................... 4
Sperma-penetratie en membraanfusie ........................................................................................................... 4
Eicel-activatie .................................................................................................................................................. 5
kernfusie ......................................................................................................................................................... 5
Kernfusie ............................................................................................................................................................. 6
Klieving ................................................................................................................................................................ 7
Klievingspatronen ............................................................................................................................................... 8
Gastrulatie ........................................................................................................................................................... 9
Organogenese ................................................................................................................................................... 10
Organogenese in vertebraten ........................................................................................................................... 10
Neurulatie ..................................................................................................................................................... 10
Ontwikkelingsmechanismen ............................................................................................................................. 12
Cellulaire ontwikkelingsprocessen ................................................................................................................ 12
Controle ontwikkelingsprocessen ................................................................................................................. 12
Ontwikkeling bij placentaire zoogdieren........................................................................................................... 13
Gastrulatie zoogdieren ...................................................................................................................................... 14
Extra-embryonale membranen bij vogelei en menselijk embryo ..................................................................... 14
Ontwikkeling bij placentaire zoogdieren........................................................................................................... 15
Thema 2: weefsels................................................................................................................................................. 16
Dierlijke weefsels .............................................................................................................................................. 16
Dierlijke lichaamsholtes .................................................................................................................................... 16
Epitheelweefsel ................................................................................................................................................. 16
Steunweefsel ..................................................................................................................................................... 17
Spierweefsel ...................................................................................................................................................... 19
Zenuwweefsel ................................................................................................................................................... 20
Organen en orgaanstelsels ................................................................................................................................ 20
Homeostase ...................................................................................................................................................... 21
Thema 3: Osmoseregulatie en het excretiestelsel ................................................................................................ 23
Osmolariteit en osmotische balans ................................................................................................................... 23
Osmoregulatie bij invertebraten ....................................................................................................................... 24
Evolutie van de nier bij vertebraten .................................................................................................................. 25
Stikstofhoudende afvalstoffen .......................................................................................................................... 25
De nier bij zoogdieren ....................................................................................................................................... 26
Reabsorptie en secretie .................................................................................................................................... 27



1

, Excretie.............................................................................................................................................................. 27
Transport in het nefron ..................................................................................................................................... 27
Hormonale controle van de osmoregulatie ...................................................................................................... 28
Thema 4: spijsvertering ......................................................................................................................................... 29
Variatie in spijsvertering ................................................................................................................................... 29
Types spijsvertering .......................................................................................................................................... 29
Vertebrate spijsvertering .................................................................................................................................. 29
Wanden spijsverteringskanaal ...................................................................................................................... 30
Mond en keelholte ........................................................................................................................................ 30
Slokdarm (oesophagus) ................................................................................................................................. 30
Maag ............................................................................................................................................................. 30
Dunne darm .................................................................................................................................................. 31
Absorptie ........................................................................................................................................................... 32
Dikke darm ........................................................................................................................................................ 32
Regulatie spijsverteringstelsel........................................................................................................................... 32
Regulatie voedselopname ................................................................................................................................. 33
Neuro – endocriene controle van voedselgedrag ............................................................................................. 33
Voedselenergie en essentiele nutriënten ......................................................................................................... 33
Thema 5: Musculo-skeletaal stelsel ...................................................................................................................... 34
Types van skelet ................................................................................................................................................ 34
Been .................................................................................................................................................................. 35
Beenstructuur ................................................................................................................................................... 35
Beweging van de skeletspieren ......................................................................................................................... 36
Structuur van de skeletspier ............................................................................................................................. 36
Contractie van de skeletspier ............................................................................................................................ 36
Types van spiervezels ........................................................................................................................................ 37
Thema 6: Het circulatorisch systeem: de bloedsomloop ...................................................................................... 38
circulatiestelsel bij invertebraten...................................................................................................................... 38
Circulatiestelstel bij vertebraten ....................................................................................................................... 38
Samenstelling en functie van het bloed ........................................................................................................ 38
Karakteristieken van bloedvezels .................................................................................................................. 39
Cardiovasculaire ziektes ................................................................................................................................ 39
Evolutie van de bouw van het hart ............................................................................................................... 40
Hartcyclus ...................................................................................................................................................... 41
Bloeddruk meten .......................................................................................................................................... 42
Contractie hartspier ...................................................................................................................................... 42
Thema 7: Ademhaling/gasuitwisseling ................................................................................................................. 43


2

, Cellulaire ademhaling (respiratie) ..................................................................................................................... 43
(in)directe gasuitwisseling cel – milieu ............................................................................................................. 43
Transport van gassen ........................................................................................................................................ 43
Principes van gasdiffusie ................................................................................................................................... 43
Transport van O2 ............................................................................................................................................... 43
Ademhalingspigmenten .................................................................................................................................... 44
Transport van CO2 ............................................................................................................................................. 45
Gasuitwisselingssystemen ................................................................................................................................. 45
Thema 8: Endocrien – hormonaal stelsel .............................................................................................................. 46
Chemische boodschappermoleculen ................................................................................................................ 46
Typische chemische boodschapper-moleculen ............................................................................................ 46
Endocrien systeem ............................................................................................................................................ 47
Lipofiele hormonen ........................................................................................................................................... 49
Hydrofiele hormonen ........................................................................................................................................ 50
Hypofyse-hypothalamus ................................................................................................................................... 51
Neurohypofyse .............................................................................................................................................. 51
Adenohypofyse ............................................................................................................................................. 52
Perifere endocriene klieren............................................................................................................................... 53
Diabetes Mellitus .............................................................................................................................................. 55
Gonaden ............................................................................................................................................................ 56
RAAS – systeem ................................................................................................................................................. 56
Thema 9: Het zenuwstelsel ................................................................................................................................... 57
Organisatie van het zenuwstelsel ..................................................................................................................... 57
Mechanisme van de zenuwimpuls .................................................................................................................... 58
Synapsen ........................................................................................................................................................... 61
Neurotransmitters ............................................................................................................................................ 62
Synaptische integratie ....................................................................................................................................... 62
Habituatie.......................................................................................................................................................... 63
Centraal zenuwstelsel ....................................................................................................................................... 64




3

, THEMA 1: DIERLIJKE ONTWIKKELING

BEVRUCHTING

- In alle sexueel-reproducerende dieren → de versmelting van mannelijke en vrouwelijke haploïde
gameten (zaadcel en eicel) tot diploïde zygote die ontwikkelt (embryo)
- Drie gebeurtenissen:
o Sperma-penetratie en membraanfusie
o Eicel-activatie
o Versmelting van de kernen (kernfusie)
- Tegenstrijdige vereisten:
o Bevruchting bevorderen
o Verhinderen polyspermie (polyploïdie) of versmelting met zaadcel andere soort (bij
uitwendige bevruchting)
- Van zygote naar embryo → methodische delingen.
o Meiose = vorming geslacht
o Mitose = vorming embryo

POLYSPERMIE: versmelten van meerdere zaadcellen met een eicel. Moet vermeden worden, zie abnormaal
aantal chromosomen (polyploidie, komt wel voor bij planten).


SPERMA-PENETRATIE EN MEMBRAANFUSIE
- Beschermende lagen van de eieren bestaan uit:
o Vitelline-enveloppe
o Gelatinelaag Zee-egels



o Zona pellucida Zoogdieren

- ACROSOOMREACTIE: Acromosoom van sperma bevat verteringsenzymen → doorbreekt
celmembraan van de eicel.
O Bij zoogdieren wordt de eicellen omgeven door zona pellucida

- Membraanfusie laat de spermakern toe om onmiddellijk binnen te dringen in het eicel-cytoplasma →
cytoplasma is wat er rond jouw cel in de eicel zit.

 De zaadcel bevat vooral aspecten om de eicel binnen te geraken




4

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller evidebusscher. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $9.21. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

80796 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$9.21
  • (0)
  Add to cart