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An effector neuron is a motor neuron that transmits impulses from the CNS to an effector
(muscle or gland).
In an experiment, it was determined that the effector neuron for muscle fibre 1 had a threshold
level of -5 mV. The effector neuron for muscle fibre 2 had a threshold level of -16 mV.
An electrical probe was used to stimulate these two effector neurons of the muscle fibres.
Which of the following rows correctly identifies the reaction of each muscle fibre based on the
applied stimulus voltage?
a.
b.
C.
d.
Stimulus Voltage Muscle Fibre 1 Muscle Fibre 2
-10 mV
-20 mV
Stimulus Voltage Muscle Fibre 1 Muscle Fibre 2
Relaxed
Stimulus Voltage
-20 mV
Relaxed
-10 mV
Contracted
Stimulus Voltage Muscle Fibre 1
Contracted
Muscle Fibre 1 Muscle Fibre 2
Contracted
Contracted.
Relaxed
Muscle Fibre 2
Relaxed

Respuesta :

The row that correctly identifies the reaction of each muscle fibre based on the applied stimulus voltage in the information about the neuron is:

C. Stimulus voltage -10mV

Muscle Fibers - Contracted

Muscle Fibers 2 - Relaxed

How to explain the information?

It should be noted that based on the information given, the threshold Level will be reached at -10mV for muscle fiber 1. Therefore, at this point, the muscle will be contracted.

It should be noted that muscle fiber 2 will not be reached, therefore it's relaxed.

Therefore, the row that correctly identifies the reaction of each muscle fibre based on the applied stimulus voltage in the information about the neuron is:

C. Stimulus voltage -10mV

Muscle Fibers - Contracted

Muscle Fibers 2 - Relaxed

Learn more about neurons on:

brainly.com/question/13061744

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