BIOLOGY
27 DE MAYO DE 2022 TYPES OF:
SKELETAL
MUSCLES+MOV. TISSUES
• Cartilage: shock
+HEART absorber.
• Tendons: attach
muscle to bone
How muscles contract
• Ligaments: attach
Sliding filament theory bone to bone
Nervous impulse causes the release of Ca+ ions from sarcoplasmic reticulum.
MUSCLE
Ca+ binds to troponin mol., stimulating them to change shape, which causes
• Cardiac (heart):
troponin and tropomyosin proteins to change positions on the actin filaments.
involuntary,
Myosin binding sites are exposed and globular heads of myosin mol. bind, striated, branched,
coming cross-bridges. The heads pull and ATP hydrolysis occurs, providing uninucleate. Never
energy to break the bonds. Myosin heads move back and overall the sarcomere tires.
shortens=muscle contracts.
• Smooth:
involuntary, internal
organ walls,
Thermoregulation contractas and
fatigues slowly, non
Keeping Cool
striated.
Sphincter muscles relax and arteriovenous Erector pili contrita: hairs
shunt closes= vasodilation. • Skeletal: voluntary,
upright trap insulating
striated, tubular,
layer of air multinucleate,
Blood flows to surface of skin=red.
attached to
Less sweat skeleton, enables
Erector pili muscles relax=body hairs lie flat movements
Shivering: involuntary (contracts and
Sweating contraction of skeletal fatigues rapidly)
muscles= increase in
Keeping Warm metabolic rate. SKELETAL M.F
• Slow Twitch: slow
Sphincter muscles contract and and sustained
arteriovenous contractions, plenty
opens=vasoconstriction. mitochondria,
aerobic resp., rich
blood supply (red),
Osmoregulation glucose.
• Fast Twitch: fast
ULTRAFILTRATION contraction for
short period of
High bp squeezes blood out of
time, less
capillary wall. Blood cells+plasma
mitochondria, few
can’t pass though pores.
blood vessels
Bowman’s capsule acts as another
(pale), anaerobic
filter
resp., glycogen.
1
27 DE MAYO DE 2022 TYPES OF:
SKELETAL
MUSCLES+MOV. TISSUES
• Cartilage: shock
+HEART absorber.
• Tendons: attach
muscle to bone
How muscles contract
• Ligaments: attach
Sliding filament theory bone to bone
Nervous impulse causes the release of Ca+ ions from sarcoplasmic reticulum.
MUSCLE
Ca+ binds to troponin mol., stimulating them to change shape, which causes
• Cardiac (heart):
troponin and tropomyosin proteins to change positions on the actin filaments.
involuntary,
Myosin binding sites are exposed and globular heads of myosin mol. bind, striated, branched,
coming cross-bridges. The heads pull and ATP hydrolysis occurs, providing uninucleate. Never
energy to break the bonds. Myosin heads move back and overall the sarcomere tires.
shortens=muscle contracts.
• Smooth:
involuntary, internal
organ walls,
Thermoregulation contractas and
fatigues slowly, non
Keeping Cool
striated.
Sphincter muscles relax and arteriovenous Erector pili contrita: hairs
shunt closes= vasodilation. • Skeletal: voluntary,
upright trap insulating
striated, tubular,
layer of air multinucleate,
Blood flows to surface of skin=red.
attached to
Less sweat skeleton, enables
Erector pili muscles relax=body hairs lie flat movements
Shivering: involuntary (contracts and
Sweating contraction of skeletal fatigues rapidly)
muscles= increase in
Keeping Warm metabolic rate. SKELETAL M.F
• Slow Twitch: slow
Sphincter muscles contract and and sustained
arteriovenous contractions, plenty
opens=vasoconstriction. mitochondria,
aerobic resp., rich
blood supply (red),
Osmoregulation glucose.
• Fast Twitch: fast
ULTRAFILTRATION contraction for
short period of
High bp squeezes blood out of
time, less
capillary wall. Blood cells+plasma
mitochondria, few
can’t pass though pores.
blood vessels
Bowman’s capsule acts as another
(pale), anaerobic
filter
resp., glycogen.
1
