1.) Is skeletal muscle a distributed organ? yes or no 2.) Each motor neuron inne
ID: 49962 • Letter: 1
Question
1.) Is skeletal muscle a distributed organ?
yes or no
2.) Each motor neuron innervates a finite number of muscle fibers. We have referred to this set of muscle fibers as a motor unit. Do motor units vary in size?
a.) no, they average about the same throughout the musculature
b.) yes, fine control depends upon a motor unit with only several muscle fibers
3.) How are the muscle fibers within a motor unit arranged spatially within a muscle fascicle?
a.) adjacent to one another
b.) scattered somewhat throughout the fascicle
4.) What is the resting membrane potential of a muscle fiber?
a.) -90 mV
b.) -60 mV
5.)
In view of the difference between the resting membrane potential of a motor neuron and a muscle fiber, which cell is more leaky to sodium ions?
a.)motor neuron
b.) muscle fiber
Explanation / Answer
1.) Is skeletal muscle a distributed organ?
no
because skeletal muscle is a contractile organ that is directly or indirectly attached to bone.
skeletal muscles help to support and move our body. Additionally, skeletal muscles help with nutrition and temperature regulation. For the purposes of this study, skeletal muscle functions will be divided into two general categories - that is, support and movement andhomeostasis.
In many cases, skeletal muscle contraction maintains body posture and position;
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