disorders
which disorder causes muscle atrophy and is genetic
ALS
Muscles contract and relax to pull bones or other tissues to create movement
what are musles composed of
fibers
Which step is “ATP creates a power stroke, shortening actin filament”
Step 5
What are the three types of muscles in the human body?
Skeletal, Smooth, Cardiac
What viral disease can cause paralysis most commonly in the legs
POLIO
Why do muscle contractions generate heat?
where are the fibers found?
muscle cells called myocytes
What step is “Actin changes shape”
Step 3
What is the largest muscle in the body?
Gluteus Maximus
This autoimmune disease causes acetylcholine receptors to be damaged.
Myasthenia Gravis
What does the wall of skeletal muscle provide
It provides protection for the organs of the abdominal cavity
what is each muscle covered with?
epimysium (layer of collagen fibers)
What step is “cross bridges form”
Step 4
Where are the smallest muscles in your body located?
The ear
What is the bacteria called that causes tetanus?
Clostridium tetani
what is the reason for muscle fatigue
lack of oxygen
what are tendons?
bundle of collagen fibers that attach muscles
What step is “Signal travels down the motor neuron”
Step 1
What percent of body weight do your muscles make up?
on average about 40%
What do muscle fibers progressively turn into over time?
Scar Tissue
what are the functions for muscles
movement
heat
posture
stability to joints
Describe the 3 different layers of connective tissue
epimysium-outermost layer, surrounds entire muscle
perimysium-separates and surrounds fascicles
endomysium-surrounds each individual muscle fiber
What step is “Calcium released from sarcoplasm”
Step 2
What is the process called when as you age you lose muscle mass and strength?
Sarcopenia