13. The Peripheral Nervous System
Introduction to Reflex Arcs
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- Multiple Choice
Which stage of a reflex arc would be significantly different in a reflex that is initiated by the brain compared to a reflex that is initiated by the spinal cord?
697views8rank - Multiple ChoiceChoose the true statement.1452views2rank
- Multiple ChoiceWhich of the following reflexes is particularly important in maintaining balance and often accompanies the flexor reflex in weight-bearing limbs?1213views
- Multiple ChoiceWhich of the following is an example of an intrinsic reflex?1647views1rank
- Textbook Question
The following are the steps involved in a neural reflex.
1. Activation of a sensory neuron
2. Activation of a motor neuron
3. Response by an effector
4. Arrival of a stimulus and activation of a receptor
5. Information processing
The proper sequence of these steps is
(a) 1, 3, 4, 5, 2
(b) 4, 5, 3, 1, 2
(c) 4, 1, 5, 2, 3
(d) 4, 3, 1, 5, 2
(e) 3, 1, 4, 5, 2
530views - Textbook Question
The reflexes that control the most rapid, stereotyped motor responses to stimuli are
(a) Monosynaptic reflexes
(b) Polysynaptic reflexes
(c) Tendon reflexes
(d) Extensor reflexes
424views - Textbook Question
The contraction of flexor muscles and the relaxation of extensor muscles illustrate the principle of
(a) Reverberating circuitry
(b) Generalized facilitation
(c) Reciprocal inhibition
(d) Reinforcement
418views - Textbook Question
List, in sequence, the five steps involved in a neural reflex.
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