Question

Im really desperate, I need this answer. Plzzzz.

Use Zoe’s diagram to answer the following questions.

Zoe wants to replace the letters on her diagram with labels that describe how the nerves and muscles communicated with each other to trigger her reflexive response. What should her labels be? Should she eliminate any letters from this pathway?

Answer 1

I believe the correct answers are:

A- Sensory Neuron

B- Spinal cord

C- Effector neuron

D - Brain

Step-by-step explanation:

A - Sensory Neuron:

This is a type of neuron that recieves a stimulus. In this case, a person was pinched at the point A causing the sensory neurons to be stimulated then converted the stimulus into a nerve impulse/electric signals finally transmitting it into the spinal cord labelled B.

B- Spinal cord:

This is the long J or S- shaped structure supporting the body upright and also acting as a link to communicate signals from the periphery of the body to the brain for interpretation. It recieves signals from the sensory neuron at point A and uses its inter-neurons to communicate with the brain (point D).

C- Effector neuron:

This is a neuron that causes muscular contraction in what will be seen as a reflex after the muscle had been stimulated. These neurons are only found in the spinal chord and have a central cell body and nucleus.

D- Brain:

It is the central processing center where the reflex stimulus is recieved from the spinal chord (B) and then interpreted into an electrical signal that will produce muscle movement at point C.

Answer 2

A: skin detects sharp nerve

B: spinal cord receives signal from sensory

C: the nerve impulse the muscle to contract

Zoe should remove the the brain from this pathway because a reflexive motor response doesn’t travel to the brain.