Exam 10: Control of Body Movement

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Afferent fibers from muscle spindle stretch receptors in a muscle make excitatory synaptic contact with motor neurons that innervate the extrafusal fibers of the same muscle.

(True/False)

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Question 41

Which best describes an event that occurs as part of the crossed-extensor reflex?

(Multiple Choice)

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Question 42

The corticospinal pathways:

(Multiple Choice)

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Question 43

Which is NOT true about reflexes initiated by muscle spindle activation?

(Multiple Choice)

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Question 44

The motor neuron pool of a skeletal muscle consists of the neurons of all of the motor units of that muscle.

(True/False)

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Question 45

When a walking person lifts one foot off of the ground,which of these happens?

(Multiple Choice)

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Question 46

During motor activity,alpha-gamma coactivation provides important information regarding muscle length to the higher motor control centers.

(True/False)

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Question 47

Why do people with Parkinson disease experience resting tremors?

(Multiple Choice)

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Question 48

Crossed-extensor reflexes,but not stretch reflexes,are important postural reflexes.

(True/False)

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Question 49

What is the function of Golgi tendon organs?

(Multiple Choice)

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Question 50

Afferent information about body movement is in part integrated at the level of the interneurons controlling the firing of motor neurons.

(True/False)

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Question 51

Showing 41 - 51 of 51

Afferent fibers from muscle spindle stretch receptors in a muscle make excitatory synaptic contact with motor neurons that innervate the extrafusal fibers of the same muscle.

Which best describes an event that occurs as part of the crossed-extensor reflex?

The corticospinal pathways:

Which is NOT true about reflexes initiated by muscle spindle activation?

The motor neuron pool of a skeletal muscle consists of the neurons of all of the motor units of that muscle.

When a walking person lifts one foot off of the ground,which of these happens?

During motor activity,alpha-gamma coactivation provides important information regarding muscle length to the higher motor control centers.

Why do people with Parkinson disease experience resting tremors?

Crossed-extensor reflexes,but not stretch reflexes,are important postural reflexes.

What is the function of Golgi tendon organs?

Afferent information about body movement is in part integrated at the level of the interneurons controlling the firing of motor neurons.

Homeostasis: a Framework for Human Physiology

Chemical Composition of the Body

Cellular Structure, Proteins, and Metabolism

Movement of Molecules Across Cell Membranes

Control of Cells by Chemical Messengers

Neuronal Signaling and the Structure of the Nervous System

Sensory Physiology

Consciousness, the Brain, and Behavior

Muscle

The Endocrine System

Cardiovascular Physiology

Respiratory Physiology

The Kidneys and Regulation of Water and Inorganic Ions

The Digestion and Absorption of Food

Regulation of Organic Metabolism and Energy Balance

Reproduction

Defense Mechanisms of the Body

Medical Physiology: Integration Using Clinical Cases

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