Exam 8: Movement

Samantha is about to hand Megan a notebook that contains her biological psychology notes.Which of the following correctly describes how Megan's muscles will react to the heavy notebook?​ 

Action potentials in muscle fibers​ 

Myasthenia gravis 

The lateral pathway originates in the _________ and controls _________ movements.

One of the actions of the basal ganglia is the 

Describe the physical symptoms of myasthenia gravis.

________ is a protein that makes up the thin filaments of myofibril.​ 

Exposure to environmental toxins may lead to​ 

-The pathways illustrated in the left side of this figure (numbers 1 and 2)are known as the 

Alpha motor neurons are​ 

Elizabeth's grandmother recently underwent a hip replacement operation.Because she took this course,Elizabeth is able to tell her grandmother that she 

Many toxins responsible for motor disorders interact with the neurotransmitter 

Rigor mortis,or the muscle stiffness present after death,results primarily from 

A single motor unit usually contains a motor neuron and​ 

Which of the following sequences describes the typical order in which motor units are recruited?​ 

When an action potential arrives at the muscle fiber,calcium is released internally and binds with troponin.

A disorder produced by the degeneration of ACh receptors is known as 

-The pathway indicated by the number 3 in the figure originates in the ____________________ and is known as the ____________________ tract.

The lower gravity experienced by astronauts​ 

The Babinski sign is