Human Physiology An Integrated Approach 7th Edition By Silverthorn -Test Bank

Chapter 13   Integrative Physiology I: Control of Body Movement

 1) The effector in a reflex is the

1. A) control center.
2. B) afferent neuron.
3. C) efferent neuron.
4. D) sensory receptor.
5. E) muscle or gland.

Answer:  E

Section:  Neural Reflexes

Learning Outcome:  13.1

Bloom’s Taxonomy:  Knowledge

2) A polysynaptic reflex has at least ________ in the reflex pathway.

1. A) one synapse
2. B) two synapses
3. C) two neurons
4. D) three neurons
5. E) two synapses and three neurons

Answer:  E

Section:  Neural Reflexes

Learning Outcome:  13.1

Bloom’s Taxonomy:  Knowledge

3) Identify the FALSE statement.

1. A) Adipose tissue is controlled by autonomic efferents.
2. B) All reflexes require input from the brain.
3. C) Some reflexes are genetically determined.
4. D) Muscle spindles are stretch receptors.
5. E) Proprioceptors detect limb position and movement.

Answer:  B

Section:  Neural Reflexes

Learning Outcome:  13.1

Bloom’s Taxonomy:  Knowledge

4) Which reflex is NOT controlled by the brain stem?

1. A) urination
2. B) vomiting
3. C) sneezing
4. D) swallowing
5. E) salivating

Answer:  A

Section:  Autonomic Reflexes

Learning Outcome:  13.2

Bloom’s Taxonomy:  Knowledge

5) Which is NOT true regarding autonomic reflexes?

1. A) Vomiting, sneezing, and coughing are all examples of autonomic reflexes.
2. B) Integrating centers for autonomic reflexes in the brain include the hypothalamus, brain stem, and limbic system.
3. C) Autonomic reflexes are all monosynaptic, with their synapse in the central nervous system.
4. D) Many autonomic reflexes are characterized by tonic activity, a continuous stream of action potentials.

Answer:  C

Section:  Autonomic Reflexes

Learning Outcome:  13.2

Bloom’s Taxonomy:  Knowledge

6) The sensory fibers of the muscle spindle organs synapse onto

1. A) Golgi tendon organs.
2. B) gamma motor neurons.
3. C) alpha motor neurons.
4. D) joint receptors.

Answer:  C

Section:  Skeletal Muscle Reflexes

Learning Outcome:  13.3

Bloom’s Taxonomy:  Knowledge

7) The reflex that prevents a muscle from exerting too much tension is the

1. A) stretch reflex.
2. B) tendon reflex.
3. C) flexor reflex.
4. D) crossed extensor reflex.
5. E) reciprocal reflex.

Answer:  A

Section:  Skeletal Muscle Reflexes

Learning Outcome:  13.4

Bloom’s Taxonomy:  Comprehension

8) The flexion reflex

1. A) prevents a muscle from overstretching.
2. B) prevents a muscle from generating damaging tension.
3. C) moves a limb away from a painful stimulus.
4. D) makes adjustments in other parts of the body in response to a particular stimulus.
5. E) is an example of a monosynaptic reflex.

Answer:  C

Section:  Skeletal Muscle Reflexes

Learning Outcome:  13.6

Bloom’s Taxonomy:  Comprehension

9) The reflex that complements a withdrawal reflex by making compensatory adjustments on the opposite side of the body receiving the stimulus is the

1. A) stretch reflex.
2. B) tendon reflex.
3. C) flexor reflex.
4. D) crossed extensor reflex.
5. E) reciprocal reflex.

Answer:  D

Section:  Skeletal Muscle Reflexes

Learning Outcome:  13.6

Bloom’s Taxonomy:  Comprehension

10) It is the middle of winter and you walk over an icy patch and lose your balance. As you begin to fall, you react by extending your arms to catch yourself. In this instance, what type of reflex is occurring?

1. A) stretch reflex
2. B) tendon reflex
3. C) flexor reflex
4. D) crossed extensor reflex
5. E) reciprocal reflex

Answer:  D

Section:  Skeletal Muscle Reflexes

Learning Outcome:  13.6

Bloom’s Taxonomy:  Comprehension