Muscular system

Lactic acid

________- a byproduct of fermentation and can cause fatigue and soreness.

Epimysium

________- a layer of collagen fibers that separate it from surrounding organs.

Periosteum

________- connective tissue that surrounds the bones.

Endomysium

________- surrounds each individual muscle fiber.

Rhabdomyolysis

________- serious injury due to direct or indirect muscle injury, death of muscle fibers, can cause kidney faliure then death if the fibers enter the bloodstream.

Myofibers

________- long filaments that have the ability to contact.

involuntary movement

Muscle cramp- ________, that occurs in the skeletal and smooth muscle and can last up to 7 days.

Sarcolemma

________- T- tubules, the cell membrane of the muscle fiber.

Skeletal

________- bones, tendons, ligaments, voluntary.

Sphincters

________- circular muscles that control the openings in the digestive and urinary systems.

Peristalsis

________- involuntary movement of the intestines, involuntary.

Elasticity

________- muscles have the ability to recoil back to ts original length after being streched.

Excitability

________- muscle tissue responds to a stimulus delivered from a motor neuron hormone.

Glycolysis

________- breaks down glucose, releasing two molecules of pyruvate and two molecules of ATP.

Aponeurosis

________- muscle attached to another muscle.

Extensibility

________- a muscle has the ability to be streched.

Perimysium

________- divides each facile.

Functions

________ of the muscular system- movement, tone, posture, protection.

Fascicles

________- muscle is made up of these bundles.

muscular system

Properties of the ________- contractibility, extensibility, elasticity, and excitability.

Myosin

________- thick dark, filaments, type of protein.

Summation

________- the process of recruiting more muscle fibers to generate a greater force.

Contractibility

________- the ability of muscle cells to shorten forcefully.

Muscle tissue

________ types- smooth, cardiac, skeletal.

Contraction phase

________- actin and myosin generate tension.

ATP

________- the direct unit of energy used by muscle fibers.

Fermentation

________- reactions to recycle the unused products of glycolysis.

Relaxation phase

________- actin and myosin uncouple and the muscle relaxes.

functions of the muscular system

movement, tone, posture, protection

sphincters

circular muscles that control the openings in the digestive and urinary systems

epimysium

a layer of collagen fibers that separate it from surrounding organs

fascicles

muscle is made up of these bundles

perimysium

divides each facile

endomysium

surrounds each individual muscle fiber

tendon

a muscle attached to the bone

aponeurosis

muscle attached to another muscle

sarcolemma

T-tubules, the cell membrane of the muscle fiber

myofibers

long filaments that have the ability to contact

actin

thin, light filaments, type of protein

myosin

thick dark, filaments, type of protein

summation

the process of recruiting more muscle fibers to generate a greater force

latent period

the stimulus spreads through the muscle

contraction phase

actin and myosin generate tension

relaxation phase

actin and myosin uncouple and the muscle relaxes

ATP

the direct unit of energy used by muscle fibers

glycolysis

breaks down glucose, releasing two molecules of pyruvate and two molecules of ATP

Anaerobic

no oxygen is used

Aerobic

oxygen is used

lactic acid

a byproduct of fermentation and can cause fatigue and soreness

fermentation

reactions to recycle the unused products of glycolysis

properties of the muscular system

contractibility, extensibility, elasticity, and excitability

contractibility

the ability of muscle cells to shorten forcefully

extensibility

a muscle has the ability to be streched

elasticity

muscles have the ability to recoil back to ts original length after being streched

excitability

muscle tissue responds to a stimulus delivered from a motor neuron hormone

periosteum

connective tissue that surrounds the bones

muscle tissue types

smooth, cardiac, skeletal

smooth

inside the organs

cardiac

line the heart wall, involuntarily

skeletal

bones, tendons, ligaments, voluntary

peristalsis

involuntary movement of the intestines, involuntary

Atrophy

waterway

Grade one muscle strain

(mild) little pain, a small amount of fiber damage, usually felt the next day of injury

Grade two muscle strain

(moderate) significant amount of muscle fibers torn, movement is limited by pain, strength is reduced, comes with swelling and pain

Grade three muscle strain

(severe) COMPLETE rupture/ tear of the muscle, loss of function, severe pain and swelling

Muscle cramp

involuntary movement, that occurs in the skeletal and smooth muscle and can last up to 7 days

Muscle soreness

delayed soreness usually after exercise

Rhabdomyolysis

serious injury due to direct or indirect muscle injury, death of muscle fibers, can cause kidney faliure then death if the fibers enter the bloodstream