Verskeie bronne word gebruik vir 'n samevattende opsomming wat al die nodige inligting bevat, maar in 'n maklike verstaanbare taal en tot op die punt.
Bronne sluit in Via Afrika, Antwoordreeks, Verken Lewenswetenskappe, Zoem, Ace it, Ken en Verstaan
My opsommings is ideaal vir hersiening en eks...
1. Bou van die Hart
Uitwendige Bou:
• Hart is hol, peervormig, spieragtig
• Grootte van geslote vuis
• Wande bestaan uit hartspierweefsel wat saamtrek en verslap
• Hart is in borsholte effens na links
• Hart word deur dubbelwandige membraan, (perikardium) omsluit
Inwendige Bou:
• Hart word deur septum verdeel
• Linkerhelfde bevat geoksigeneerde bloed
• Regterhelfde bevat gedeoksigeneerde bloed
• Die bloed van linker en regter halwes meng nooit
• Hart word dus as dubbele pomp beskou
• Hart bestaan uit 4 kamers
• Die boonste kamers is ontvangkamers (atriums)
• Die onderste kamers is pompkamers (ventrikels)
, Die hartkamers:
1.Regteratrium (RA):
- Bokant van hart
- Ontvang gedeoksigeneerde bloed vanaf hele liggaam
- Boonste vena cava en onderste vena cava
2.Regterventrikel (RV):
- Bloed vloei vanaf regteratrium tot in regterventrikel
- Gedeoksigeneerde bloed word na longe gepomp
3.Linkeratrium (LA):
- Ontvang gedeoksigeneerde bloed vanaf longe
- 4 pulmonere venes
4. Linkerventrikel (LV):
- Grootste hartkamer
- Pomp geoksigeneerde bloed na hele ligaam
- Bloed vloei vanaf linkeratrium tot in linkerventrikel
- Geoksigeneerde bloed word dan met aorta na res van liggaam gepomp
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