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Chapter 13/14
A&P Module 4
| Question | Answer |
|---|---|
| A patient who received a blow to the side of the skull exhibits the following signs and symptoms on that side of the face: he is unable to close hid eye, and the corner of his mouth droops. Which cranial nerve has been damaged? | FACIAL NERVE |
| The patellar "knee jerk" reflex is an example of a _________ | STRETCH REFLEX |
| Turns the eyeball laterally | ABDUCENS NERVES |
| Formed by the union of a cranial and a spinal root. | ASSCESSORY NERVE |
| The only cranial nerves to extend beyond the head and neck region are the vagus nerve. | TRUE |
| Receptors for this nerve are located in eqithelium of the nasal cavity. | OLFACTORY |
| The second cranial nerve forms a chiasma at the base of the brain for partial crossover of neural fibers. | TRUE |
| Dermatomes are skin segments that relate to sensory innervation regions of the spinal nerves. | TRUE |
| There are 41 pairs of spinal nerves. | FALSE |
| Tests both upper and lower motor pathways. The sole of the foot is stimulated with a dull instrument. | PLANTAR REFLEX |
| Helps to regulate blood pressure and digestion. | VAGUS NERVE |
| Prevents muscle overstretching and maintains muscle tone. | STRETCH REFLEX |
| Serves the senses of hearing and equilibrium. | VESTIBULOCOCHLEAR |
| Produces muscle relaxation and lengthening in response to tension: the contracting muscle relaxes as its antagonist is activated. | GOLGI TENDON |
| Consists of an ipsilateral withdrawal reflex and a contralateral extensor reflex; important in maintaining balance. | CROSSED-EXTENSOR |
| Produces a rapid withdrawal of the body part from a painful stimulus; ipsilateral. | FLEXOR REFLEX |
| The glossopharyngeal nerve is the only cranial nerve that contains sensory fibers. | FALSE |
| Sympathetic division stimulation causes __________. | INCREASED BLOOD GLUCOSE , DECREASED GI PERISTALSIS, AND INCREASED HEART RATE AND BLOOD PRESSURE. |
| Through direct neural stimulation, the sympathetic division promotes many metabolic effects via hormone release. | TRUE |
| Fibers that enter and leave the sympathetic chain without synapsing form structures called _________ | SPLANCHNIC NERVES |
| Parasymapathetic functions include __________ | LENS ACCOMMODATION FOR CLOSE VISION |
| Beta-blockers | DECREASE HEART RATE AND BLOOD PRESSURE |
| Which is a uniquely sympathetic function? | REGULATION OF BODY TEMPERATURE |
| The route of major parasympathetic outflow from the head is via the ____________ | VAGUS (X) NERVE |
| Visceral reflex arcs differ from somatic in that | VISCERAL ARCS INVOLVE TWO MOTOR NEURONS |
| The craniosacral division is another name for the parasympathetic division. T/F | TRUE |
| The possibility of some control over autonomic responses is demonstrated by ______________ | BIOFEEDBACK |
| Erection (vasodilation) of the penis or clitoris | IS PRIMARILY UNDER PARASYMPATHETIC CONTROL |
| Most body organs are innervated by only the sympathetic division of the nervous system. T/F | FALSE |
| Emotion influence autonomic reactions primarily through integration in the ______________ | HYPOTHALAMUS |
| Most blood vessels are innervated by the sympathetic division alone | TRUE |
| Acetylcholine is the substance released by the axonal ending of the somatic efferent fibers and by the parasymparathetic nerve fiber endings. T/F | TRUE |
| The only cranial nerves to extend beyond the head and neck region are the vagus nerves. | TRUE |
| Receptors for this nerve are located in epithelium of the nasal cavity. | OLFACTORY |
| The second cranial nerve forms a chiasma at the base for part | |
| The autonomic nervous systems may cause activation or inhibition, depending on the division that is active and the target that is affected. | TRUE |
| Which of the following does NOT described the ANS? | A SYSTEM OF MOTOR NEURONS THAT INNERVATES ALL MUSCLE CELLS |
| A drug that might be used specifically to reduce heart rate in cardiac patients could be ____________ | BETA-BLOCKERS |
| Preparing the body for the "fight-or-flight" response is the role of the ____________ | SYSPATHETIC (DIVISION) NERVOUS SYSTEM |
| Thermoregulatory response to increased heat are mediated by the sympathetic nervous division. T/F | TRUE |
| Alpha-adrenergic effects are usually stimulatory and mediatory. T/F | TRUE |
| Most disorders of the autonomic nervous system reflect abnormalities of smooth muscle control. T/F | TRUE |
| The secretions of the adrenal medulla act supplement the effects of ____________ | SYMPATHETIC STIMULATION |
| Because the ANS is a visceral motor system, afferent pathways are of no importance and actually are rarely found. T/F | FALSE |
| Which of the following is NOT a result of parasympathetic stimulation? | DILATlION OF THE PUPILS |
| Sympathetic nerves may leave the spinal cord at which vertebra? | FIRST THORACIC |
| Which of these effectors is NOT directly controlled by the autonomic nervous system? | SKELETAL MULSCLE |
| Cardiovascular effects of the sympathetic division include all except ______________ | DILATION OF THE BLOOD VESSELS SERVING THE SKIN AND DIGESTIVE VISCERA |
| The " resting and digesting" division of the autonomic nerve system is the | PARASYMPATHETIC DIVISION |
| Sympathetic responses generally are widespread because __________________ | NE AND EPINEPHRINE ARE SECRETED INTO THE BLOOD AS PART OF THE SYMPATHETIC RESPONSE |
Created by:
mgavary