4 - Movement
What is the role of acetylcholine in calcium release?
binds to sarcoplasmic reticulum, causing calcium release
A group of skeletal muscle fibers is called a/an
fascicle
Which of the following correctly identifies muscle components in order from largest to smallest?
fasciculus-muscle fiber-myofibril
Which of the following refers to a prolonged muscular spasm
myotonia
Light bands has which of the following filament protein?
actin
This event occur during muscular contraction
H-zone disappears then I band shortens then Width of A band is unaffected then M line and Z line get closer
The basic microtubular structure of cilia and flagella is called
axoneme
The membrane that is the closest to the individual muscle fiber is the
endomysium
Muscle gets fatigue due to accumulation of
lactic acid
The smallest functional unit of contraction is the
sarcomere
The space between two Z lines constitutes the
sarcomere
Both cilia and flagella are structurally
similar
The complete contraction of a muscle, without the ability to relax is called
tetanic contraction
A single contraction of a muscle is called a
twitch