You are driving at night on a two lane road, and you see a bright light. The light pass through your pupil, and your lens concentrates the light at retina. This stimulates the visual pathway. Your visual association center processes the signal from your eye and determines the lights is from a flashlight that an old lady is holding while crossing the street. Your visual association center sends a signal to your primary motor cortex, which sends a signal down the lateral corticospinal tract. This signal then proceeds down the spinal cord, out the posterior gray horn of the spinal cord, and out the ventral roots of efferent motor neurons. The motor signal travels from the sacral plexus and out towards the sciatic nerve. To answer this question, number the following steps in the correct order starting with the signal exiting the sciatic nerve. Number in order from 1-15 ______The cycle repeats and now many muscle fibers in the gastrocnemius begin to contracts in unison. _____Calcium ions binds to troponin complex. ______ATP is converted and myosin head pivots moving the thin filaments to closer to the M line. ________Signal exits the sciatic nerve and travels into a branch nerve. _______Motor neuron releases acetylcholine into neuromuscular junction. ________Myosin binds to the myosin binding site on the actin filament, forming the cross-bridges. ________Gastrocnemius contracts causing plantar flexion, which results in you pressing the brakes hard to stop your car. ___________Ca2+ bounded to troponin stimulates the tropomyosin strands to move away exposing myosin binding site. _______Action potential travels from sarcolemma towards the T tubules . _______Calcium ions are released. _________Acetylcholine causes the muscle fiber to depolarize through the influx of sodium. ________Signal travels from the nerve to the muscles fibers of the gastrocnemius. __________Action potential travels and stimulates the sarcoplasmic reticulum. _________Acetylcholine binds to acetylcholine receptors on the muscle fiber. __________Signal reaches the synaptic and bulbs of the motor neurons.

You are driving at night on a two lane road, and you see a bright light. The light pass through your pupil, and your lens concentrates the light at retina. This stimulates the visual pathway. Your visual association center processes the signal from your eye and determines the lights is from a flashlight that an old lady is holding while crossing the street. Your visual association center sends a signal to your primary motor cortex, which sends a signal down the lateral corticospinal tract. This signal then proceeds down the spinal cord, out the posterior gray horn of the spinal cord, and out the ventral roots of efferent motor neurons. The motor signal travels from the sacral plexus and out towards the sciatic nerve. To answer this question, number the following steps in the correct order starting with the signal exiting the sciatic nerve. Number in order from 1-15 ____The cycle repeats and now many muscle fibers in the gastrocnemius begin to contracts in unison. _Calcium ions binds to troponin complex. ATP is converted and myosin head pivots moving the thin filaments to closer to the M line. Signal exits the sciatic nerve and travels into a branch nerve. _Motor neuron releases acetylcholine into neuromuscular junction. Myosin binds to the myosin binding site on the actin filament, forming the cross-bridges. Gastrocnemius contracts causing plantar flexion, which results in you pressing the brakes hard to stop your car. _Ca2+ bounded to troponin stimulates the tropomyosin strands to move away exposing myosin binding site. _Action potential travels from sarcolemma towards the T tubules . _Calcium ions are released. _Acetylcholine causes the muscle fiber to depolarize through the influx of sodium. Signal travels from the nerve to the muscles fibers of the gastrocnemius. __Action potential travels and stimulates the sarcoplasmic reticulum. _Acetylcholine binds to acetylcholine receptors on the muscle fiber. ______Signal reaches the synaptic and bulbs of the motor neurons.

Essentials Of Human Development

1st Edition

ISBN:9781285647357

Author:Kail

Publisher:Kail

Chapter3: Tools For Exploring The World: Physical, Perceptual, And Motor Development

Section3.4: Coming To Know The World

Problem 9TY

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