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week 8
| Question | Answer |
|---|---|
| What is the difference between a somatic reflex and an autonomic reflex? | Somatic reflexes involve contraction of skeletal muscles. Autonomic reflexes regulate smooth muscle, cardiac muscle, and endocrine glands. |
| Cerebrospinal fluid is formed by filtration of blood in the: | choriod plexus |
| The cerebellum performs all of the following functions except: | Cardiac functions |
| The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic. | T |
| Most effectors of the autonomic nervous system are dually innervated by sympathetic and parasympathetic neurons. | T |
| Which of the following is not associated with the oculomotor nerve? | Closing and opening of the eye |
| Which of the following is not a function of the hypothalamus? | |
| Somatic motor and autonomic pathways share all of the following characteristics except: | number of neurons between cns |
| Parasympathetic stimulation has no effect on any of the following areas except: | Sweat Glands |
| Danielle has sustained an injury that has reduced her ability to complete simple tasks such as lifting a pencil, manipulating eating utensils, and brushing her hair. The injury has affected the _ motor pathways _____ the central nervous system (CNS). | Voluntary, outside |
| The knee jerk can be classified as a segmental reflex because: | impulses that mediate it enter and leave the same segment of the cord. |
| The parasympathetic and sympathetic divisions always act with a cooperative influence, and through summation of the impulses, the effect can be increased. | T |
| If the dorsal root ganglia of the spinal nerve were destroyed, a person would lose _____ related to that pathway. | sensory preception |
| Conduction by the sixth cranial nerve results in sensations of hearing. | T |
| Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate. | Vagus nerve |
| Which of the following is a description of the principle of autonomic antagonism as it relates to the autonomic nervous system? | |
| All of the following are examples of parasympathetic stimulation except: | + HR |
| Blood vessels in both digestive organs and skeletal muscles are dilated by sympathetic stimulation. | False |
| What would the result be if the phrenic nerve received an impulse from the cervical plexus? | The diaphragm would stop contracting. |
| The major function of the parasympathetic division is to serve as an “emergency” system. | False |
Created by:
Jlomeli2