Skeletal Muscles
What do you call muscles that you can control?
voluntary muscles
About how many times does your heart beat?
100,000
Can muscle cells work without without "taking a break"? Why?
No because they can get overtired.
Myofibrils
strands of protein
What waste products in cells that can produce cramping?
Lactic Acid
Skeletal muscles can respond to what kind of action?
reflexive
Where can you find smooth muscles?
in the blood vessels, stomach, intestines, and bladder
What are two antagonistic muscles?
the biceps branchii and the triceps branchii
Tendonitis
when tendons get inflamed because they are overused
What method is used for generating energy without oxygen?
Anaerobic energy
What is the largest skeletal muscle?
the gluteus maximus
What does cardiac refer to?
the heart
What can happen if nerves in your spinal cord gets damaged?
you become paralyzed
Muscle Fibers
another word for skeletal muscle cells
What happens to muscles if they are not used?
they begin to atrophy
About how many muscles does the body have?
640
Which muscle does NOT have striations?
the smooth muscle
What are some good sources of protein?
eggs, dairy products, meat, fish, and many grains and vegetables
Muscle Tone
The partial contraction that happens when you get startled.
What method produces energy by using oxygen?
Aerobic energy
What is the strongest muscle in the body?
the masseter
Which two muscles are involuntary?
cardiac and smooth muscles
Many muscles in the face attach to bone and what else?
the skin
Glucose
Sugar that breaks down food to make energy.
What does the mitochondria use to supply energy to the cell?
glucose and oxygen