pes of
T y
3 le fiber
CREATED
BY
Nadera, Erica
October 27, 2020
GRADE:
c
DATE: TEACHER:
mu s CARDIAC MUSCLE FIBER
Has cross-striations and is
composed of elongated, often
branched cells bound to one SMOOTH MUS
E F IB E R CLE FIBER
S K E L E T AleLsMoUf SveCryL lo ng ,
another at structures called C o n s is t s o f
w h ic h la c k c o ll e c t io n s o f f
intercalated discs which are u
Co nt ai ns bu nd it h cr o ss -s tr ia ti o ns . unique to cardiac muscle. in v o lu n t a r y s t r ia t io n s a n d h as if o r m c e ll s
d ce lls w v e s lo w ,
m u lt in u cl ea te
io n is qu ic k, fo rc ef u l, an d Contraction is involuntary, S m o o t h m u c o n t r a c t io n s
Th ei r co nt ra ct
vo lu nt ar y co nt ro l. vigorous, and rhythmic (w id e in t h e s c le f ib e r s a r e s p in d le -
u su al ly u nd er
s m ai nt
ze
ai n po st u re , st ab ili t, Cardiac muscle is striated muscle e n d s , s o m e w m id d le a n d t a p e r e d a t s h a p e d
Sk el et al m u sc le m en a s in g le n u c h a t li k e a f o o t b a ll ) a n b o t h
ts , co nt ro l in te rn al m o ve that is present only in the heart.
bo ne s an d jo in
. Cardiac muscle fibers have a t h e y r a n g e le u s d have
an d ge ne ra te he at e lo ca te d th ro u gh o u t single nucleus, are branched, and (t h o u s a n d s f r o m a b o u t 3 0 t o 2 0 0
Sk el et al m u sc le s ar ni ng s o f in te rn al tr ac ts joined to one another by s k e le t a l m u o f t im e s s h o r t e r t h a n μ m
pe
th e bo dy at th e o ve m en t o f va ri o u s intercalated discs that contain gap t h e ir o w n c s c le f ib e r s ), a n d t h e y p
to co nt ro l th e m o m u sc le s al lo w fu nc ti o ns , junctions for depolarization A lt h o u g h t ho n n e c t iv e t is s u e , e n d o mr o d u c e
su bs ta nc es . Th es e g, u ri na ti o n, an d between cells and desmosomes to s a r c o m e r e s e y d o n o t h a v e s t r ia t ioy s iu m .
su ch as sw al lo w in nd er vo lu nt ar y co nt ro l. hold the fibers together when the h a v e a c t in a , s m o o t h m u s c le f ib e r n s a n d
de fe ca ti o n, to be u n m u lt ip le co pi es o f heart contracts. p r o t e in s , a n n d m y o s in c o n t r a c t il e s d o
M u lt ip le nu cl ei m ea e pr o du ct io n o f th e T h e s e t h in f d t h ic k a n d t h in f il a m e
ge ne s, pe rm it ti ng th pr o te in s an d en zy m es d e n s e b o d ie il a m e n t s a r e a n c h o r e d n t s .
la rg e am o u nt s o f s. by
co nt ra ct io n.
ne ed ed fo r m u sc le
T y
3 le fiber
CREATED
BY
Nadera, Erica
October 27, 2020
GRADE:
c
DATE: TEACHER:
mu s CARDIAC MUSCLE FIBER
Has cross-striations and is
composed of elongated, often
branched cells bound to one SMOOTH MUS
E F IB E R CLE FIBER
S K E L E T AleLsMoUf SveCryL lo ng ,
another at structures called C o n s is t s o f
w h ic h la c k c o ll e c t io n s o f f
intercalated discs which are u
Co nt ai ns bu nd it h cr o ss -s tr ia ti o ns . unique to cardiac muscle. in v o lu n t a r y s t r ia t io n s a n d h as if o r m c e ll s
d ce lls w v e s lo w ,
m u lt in u cl ea te
io n is qu ic k, fo rc ef u l, an d Contraction is involuntary, S m o o t h m u c o n t r a c t io n s
Th ei r co nt ra ct
vo lu nt ar y co nt ro l. vigorous, and rhythmic (w id e in t h e s c le f ib e r s a r e s p in d le -
u su al ly u nd er
s m ai nt
ze
ai n po st u re , st ab ili t, Cardiac muscle is striated muscle e n d s , s o m e w m id d le a n d t a p e r e d a t s h a p e d
Sk el et al m u sc le m en a s in g le n u c h a t li k e a f o o t b a ll ) a n b o t h
ts , co nt ro l in te rn al m o ve that is present only in the heart.
bo ne s an d jo in
. Cardiac muscle fibers have a t h e y r a n g e le u s d have
an d ge ne ra te he at e lo ca te d th ro u gh o u t single nucleus, are branched, and (t h o u s a n d s f r o m a b o u t 3 0 t o 2 0 0
Sk el et al m u sc le s ar ni ng s o f in te rn al tr ac ts joined to one another by s k e le t a l m u o f t im e s s h o r t e r t h a n μ m
pe
th e bo dy at th e o ve m en t o f va ri o u s intercalated discs that contain gap t h e ir o w n c s c le f ib e r s ), a n d t h e y p
to co nt ro l th e m o m u sc le s al lo w fu nc ti o ns , junctions for depolarization A lt h o u g h t ho n n e c t iv e t is s u e , e n d o mr o d u c e
su bs ta nc es . Th es e g, u ri na ti o n, an d between cells and desmosomes to s a r c o m e r e s e y d o n o t h a v e s t r ia t ioy s iu m .
su ch as sw al lo w in nd er vo lu nt ar y co nt ro l. hold the fibers together when the h a v e a c t in a , s m o o t h m u s c le f ib e r n s a n d
de fe ca ti o n, to be u n m u lt ip le co pi es o f heart contracts. p r o t e in s , a n n d m y o s in c o n t r a c t il e s d o
M u lt ip le nu cl ei m ea e pr o du ct io n o f th e T h e s e t h in f d t h ic k a n d t h in f il a m e
ge ne s, pe rm it ti ng th pr o te in s an d en zy m es d e n s e b o d ie il a m e n t s a r e a n c h o r e d n t s .
la rg e am o u nt s o f s. by
co nt ra ct io n.
ne ed ed fo r m u sc le
