CRASH
OUT
C.R
,· MUSCULAR SYSTEMB
Injuries
·
contusions : bruises
·
Muscle strains stretch, rip or tear :
,
Muscle Cramp involuntary contraction :
Muscle soreness :
pain by overexertion during exercise.
-
acute muscle soreness (AOMS) during
: and immedietly
after
-
Delayed onset muscle soreness (DOMS) begins
:
12 his
after
,
most intense during 24-48 hrs.
·
Tendinopathies :
injury of tendon
-
tendonitus :
inflammation of tendon
-tenosynovitus :
inflammation of tendon +
synovial
sheath
-
Fendinosis ·
:
degeneration of tendon
-
Tendon rupture :
Complete tear of tendon .
·
Bursitis : inflammation of bursae
Types of Muscle Tissue
·
Skeletal :
Voluntary ,
striated
,
multi nucleated
·
Cardiac :
involuntary striated
,
intercalated discs mono-nucleated
, (
Smooth :
involuntary ,
not stricted , mononucleated
, muscea
myofibril
perium muscle
Microscopic Anatomy fusicle
·
Epimysism : Surrounds Tendom Epimysium
whole muscle
·
perimsium : surrounds fasicle .
·
Endomysium :
surrounds muscle
fiber
endomysium
.
·
Muscle fibers : multi-nucleated due to surcomeres
myofibrils
·
-
Thick filaments : titin anchor, consists of myosin head
-
Thin filaments
bra Troponin Nebulin
tropomyosin G-actin
·
surcomeres :
-
M-line :
proteins that hold thick filaments in place
-
H-zone : thick filaments only
-
A-band :
thick and thin filaments
-
I-band :
thin filaments only .
sarcoplasmic
nucleus reticulum
mitochondria
Tick Thements
I I
myofibril
T-tubules
sarcolemma
, Skeletal muscle mechanics
origin : attachment to stationary bone.
insertion
----
attachment to moving bone.
:
agonist/prime mover : muscle mainly responsible for movement
.
synergist
-
- . . .
: muscles supporting agonist.
·
antagonist :
oppose agonist relaxes during
,
contraction .
Muscle Contractions
Isometric : muscle remains
length same
·
Isotonic :
muscle length changes.
-
Concentric :
muscle length shortens
-
Eccentric : Muscle lengthens
Muscle fiber types
Fast twitch fibers (Type 11b)
-
large diameter
-
few mitochondria
-
Fatigue easily
-
unaerobic
·
Slow twitch fibers (type 1)
-
3 times longer to contract
- diameter of Ilb
-
more mitochondria
-greater blood supply myoglobin
,
-
aerobic
OUT
C.R
,· MUSCULAR SYSTEMB
Injuries
·
contusions : bruises
·
Muscle strains stretch, rip or tear :
,
Muscle Cramp involuntary contraction :
Muscle soreness :
pain by overexertion during exercise.
-
acute muscle soreness (AOMS) during
: and immedietly
after
-
Delayed onset muscle soreness (DOMS) begins
:
12 his
after
,
most intense during 24-48 hrs.
·
Tendinopathies :
injury of tendon
-
tendonitus :
inflammation of tendon
-tenosynovitus :
inflammation of tendon +
synovial
sheath
-
Fendinosis ·
:
degeneration of tendon
-
Tendon rupture :
Complete tear of tendon .
·
Bursitis : inflammation of bursae
Types of Muscle Tissue
·
Skeletal :
Voluntary ,
striated
,
multi nucleated
·
Cardiac :
involuntary striated
,
intercalated discs mono-nucleated
, (
Smooth :
involuntary ,
not stricted , mononucleated
, muscea
myofibril
perium muscle
Microscopic Anatomy fusicle
·
Epimysism : Surrounds Tendom Epimysium
whole muscle
·
perimsium : surrounds fasicle .
·
Endomysium :
surrounds muscle
fiber
endomysium
.
·
Muscle fibers : multi-nucleated due to surcomeres
myofibrils
·
-
Thick filaments : titin anchor, consists of myosin head
-
Thin filaments
bra Troponin Nebulin
tropomyosin G-actin
·
surcomeres :
-
M-line :
proteins that hold thick filaments in place
-
H-zone : thick filaments only
-
A-band :
thick and thin filaments
-
I-band :
thin filaments only .
sarcoplasmic
nucleus reticulum
mitochondria
Tick Thements
I I
myofibril
T-tubules
sarcolemma
, Skeletal muscle mechanics
origin : attachment to stationary bone.
insertion
----
attachment to moving bone.
:
agonist/prime mover : muscle mainly responsible for movement
.
synergist
-
- . . .
: muscles supporting agonist.
·
antagonist :
oppose agonist relaxes during
,
contraction .
Muscle Contractions
Isometric : muscle remains
length same
·
Isotonic :
muscle length changes.
-
Concentric :
muscle length shortens
-
Eccentric : Muscle lengthens
Muscle fiber types
Fast twitch fibers (Type 11b)
-
large diameter
-
few mitochondria
-
Fatigue easily
-
unaerobic
·
Slow twitch fibers (type 1)
-
3 times longer to contract
- diameter of Ilb
-
more mitochondria
-greater blood supply myoglobin
,
-
aerobic
