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Week 8
CNS, ANS, and PNS
| Question | Answer |
|---|---|
| The cortex is capable of storing and retrieving information from both short-term and long-term | memory |
| Which region of the brain plays a part in the mechanism responsible for emotions by associating sensory impulses with feelings of pleasantness and unpleasantness? | thalamus |
| “Fight or flight” physiological changes include all of the following EXCEPT | constriction of respiratory airways. |
| The two main types of adrenergic receptors are | alpha and beta |
| The action of acetylcholine is quickly terminated by its being hydrolyzed by the enzyme | Acetylcholinesterase. |
| A _____ is a skeletal muscle or group of muscles that receives motor axons from a given spinal nerve | Myotome |
| Mixed cranial nerves contain axons of | sensory and motor neurons |
| The _____ consists of several structures that lie beneath the thalamus and form the floor of the third ventricle and the lower part of its lateral walls | hypothalamus |
| Acetylcholine binds to _____ receptors | cholinergic |
| Which cranial nerve is responsible for the sense of smell? | Olfactory |
| Both sympathetic and parasympathetic divisions are tonically active, which means they | continually conduct impulses to autonomic effectors |
| If the center of a reflex arc is the brain, the response it mediates is called a | cranial reflex |
| A reflex consists of either a muscle contraction or a | glandular secretion |
| The set of coordinated commands that control the programmed muscle activity mediated by extrapyramidal pathways is called the | motor program |
| Another name for the parasympathetic nervous system is the nervous system. | craniosacral |
| Tongue movement is controlled by which cranial nerve? | Hypoglossal |
| The _____ nerve transmits impulses that result in sensations of equilibrium | Vestibular |
| Which of the following is NOT an example of sympathetic stimulation? | constriction of the bronchioles |
| The most numerous cerebral tracts are the | association tracts. |
| Each skin surface area supplied by sensory fibers of a given spinal nerve is a | Dermatome |
| The somatic motor system includes all the _____ motor pathways _____ the CNS. | voluntary; outside |
| Axon terminals of autonomic neurons release either of two neurotransmitters | norepinephrine and acetylcholine |
| Which of the following is NOT correct? | Sympathetic preganglionic axons pass along the dorsal root of certain spinal nerves |
| The reticular activating system maintains | Consciousness |
| The limbic system integrates | Emotion |
| The effect of sympathetic stimulation on the urinary bladder is | Relaxation. |
| The second largest part of the brain, located just below the posterior portion of the cerebrum, is the | Cerebellum |
| The _____ is an extension of the great toe, with or without fanning of the other toes, in response to stimulation of the outer margin of the sole of the foot. | Babinski sign |
| Many cerebral functions have typical locations. This fact is known as | cerebral localization. |
| The groove between the frontal and parietal lobes of the cerebral cortex is the | central sulcus. |
Created by:
Sandoval.Sam
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