Dit zijn aantekeningen + kleine stukjes uit het boek van het eerste jaar van PMT. Mijn tentamen hiermee in een keer gehaald. TIP: kijk de filmpjes op youtube van Fun met fysiologie.
Mens (meter)Orgaanstelsel (dm)Origo en ins. (cm)Spierbundel (mm)SpiervezelsFilamentenMoleculen
Mens = meters
Orgaanstelsels = decimeters
• Deltoïdeus (spieren zijn orgaanstelsel)
o Origo
o Zenuw
o Insertie
Spierbundel = millimeter
Spiervezels = millimeter en centimeter
Filamenten (eiwit-draad in spiervezels) = micrometer
• Actine
• Myosine
o Zijn eiwitten
Moleculen
,Groot naar klein:
1. Hele spier
• Epismysium (omvat de hele spier)
2.Spierbundel
• Perimysium (omvat de spierbundel)
3. Spiervezel
• Endomysium (omvat de spiervezel)
4. Myofibril
• Sacromeren
• Dikke en dunne filamenten
Sacromeer
Z lijn
I-band
A-band
H-band
M-band
H-band
A-band
i-band
Z lijn
Sacormeren (kleinste deeltje van de spier dat kracht kan leveren)
• Kleinste functionele spiereenheden
• Bestaande uit:
o Dun filament = actine + troponine + tropomyosine
o Dik filament = myosine met myosinekoppen (haakjes)
Troponine = verstoord het hechten van de myosine
,
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