Understanding the Brain: The Neurobiology of Everyday Life

Voluntary Movements

ByAdmin July 22, 2021

week- 7 Voluntary Movements >>> Understanding the Brain: The Neurobiology of Everyday Life

Small red muscle fibers are contracted before larger white muscle fibers

The order of muscle fiber contraction is random

Not all of the glycogen-dependent muscle fibers may be recruited

Not all of the oxygen-dependent muscle fibers may be recruited

The maximal muscle contraction can be maintained for a longer duration

The maximal muscle contraction can be maintained for a shorter duration

Muscles dominated by slow fibers will show an increase in maximal muscle contraction

Muscles dominated by slow fibers will show a decrease in maximal muscle contraction

Muscles dominated by fast, glycogen-dependent muscle fibers will show an increase in maximal muscle contraction

Muscles dominated by fast, glycogen-dependent muscle fibers will show a decrease in maximal muscle contraction

They are peripheral sensory neurons

They synapse directly on motoneurons that innervate the same muscle that they come from

The muscle they affect will not show changes until their signal reaches cortical motor control centers

They are critical to the stretch reflex

Engagement of the gamma loop modifies the sensitivity of muscles to stretch

The gamma loop is the major factor in determining muscle mass

The gamma loop contributes to resting muscle tone

In the gamma loop, the Ia afferent (the sensory neuron that responds to muscle stretch) is excited after the gamma-motoneuron contracts the intrafusal fiber

The alpha-motoneuron is activated only after the Ia afferent is excited

It is harder for her to stand with her back against the wall than with her front against a wall

Carrying a bag of groceries in front of her would require less muscular force than carrying a bag of groceries on her back

During standing, back muscles that pull the torso backwards will be engaged more than abdominal muscles that pull the torso forwards

It depends on a chain of reflexes

It depends on volitional control for every stance and swing of every step

It is only dependent on the motor hierarchy

It is not possible after a stroke that interrupts the corticospinal pathway

None of the above

Cessation of breathing

Normal breathing

Stereotyped breathing that does not change during exercise

Smile on the left in response to a command

Smile on the right in response to a command

Smile on the left in response to a joke

Smile on the right in response to a joke

Frown on the left when annoyed

Frown on the right when annoyed

Smile on the left in response to a command

Smile on the right in response to a command

Smile on the left in response to a joke

Smile on the right in response to a joke

Frown on the left in response to a command

Frown on the right in response to a command

Understanding the Brain: The Neurobiology of Everyday Life

Homeostasis

ByAdmin July 22, 2021

Week- 9 Homeostasis >>> Understanding the Brain: The Neurobiology of Everyday Life 1. Piloerection is accomplished by autonomic (sympathetic) contraction of smooth muscle at the base of hair follicles….

Understanding the Brain: The Neurobiology of Everyday Life

Hearing

ByAdmin July 22, 2021

Week- 5 Hearing >>> Understanding the Brain: The Neurobiology of Everyday Life 1. A young (20-something) man, told by his spouse that he seems to be saying “What?” a lot,…

Understanding the Brain: The Neurobiology of Everyday Life

Introduction to Abstract Function

ByAdmin July 22, 2021

Week- 10 Introduction to Abstract Function >>> Understanding the Brain: The Neurobiology of Everyday Life 1. Consider two sisters with the same sense of humor. One is paralyzed from…

Understanding the Brain: The Neurobiology of Everyday Life

Perception and Vision

ByAdmin July 22, 2021

Week- 4 Perception and Vision >>> Understanding the Brain: The Neurobiology of Everyday Life 1. You discover a snake, which lives in an environment that seems completely dark, pitch black,…

Understanding the Brain: The Neurobiology of Everyday Life

The Nervous System

ByAdmin July 16, 2021July 21, 2021

Week – 1 The Nervous System >>> Understanding the Brain The Neurobiology of Everyday Life 1. As you answer this question remember that damage to one area of the nervous…

Understanding the Brain: The Neurobiology of Everyday Life

Neurocommunications

ByAdmin July 16, 2021July 21, 2021

Week – 2 Neurocommunications >>> Understanding the Brain: The Neurobiology of Everyday Life 1. The resting membrane potential depends on which of the following ions: 1 point Calcium ions Hydrogen…

week- 7 Voluntary Movements >>> Understanding the Brain: The Neurobiology of Everyday Life

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