Motor nerve impulses pass from a neuron to a muscle cell
________.
carried by neurotransmitters
across neuromuscular junctions
across a synapse
using acetylcholine
all of the choices
Sarcomeres contain thin filaments of ________ and thick
filaments of ________.
fast fibers, slow fibers
actin, myosin
hemoglobin, myoglobin
troponin, tropomyosin
creatine, adenosine
The muscular system consists of all the following EXCEPT
sarcomeres
myofillaments
tendons
Voluntary striated skeletal muscle fibers
Voluntary smooth muscle cells
Involuntary striated cardiac muscle fibers
Skeletal muscle contractions...