Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
A/P Week 8
| Question | Answer |
|---|---|
| The pyramids are formed in the: pons. medulla. midbrain. cerebellum. | medulla. |
| Some parasympathetic postganglionic neurons have their cell bodies in nuclei in the brainstem. True False | False |
| Which of the following is not true of the lateral corticospinal tract fibers? Most decussate. Most inhibit the lower motor neuron. They are referred to as pyramidal pathways. They originate in the cerebral cortex. | Most inhibit the lower motor neuron. |
| The lumbar plexus gives rise to the _____ nerve. median phrenic femoral None of the above is correct. | femoral |
| The innermost layer of the meninges is the: pia mater. arachnoid membrane. dura mater. None of the above is correct. | pia mater. |
| Which part of the brain releases the hormone melatonin? Hypothalamus Thalamus Pineal gland Cerebellum | Pineal gland |
| The phrenic nerve is found in the _____ plexus. cervical brachial lumbar sacral | cervical |
| The brain has _____ major divisions. three five six eight | six |
| The sensory cranial nerves include only the: optic, vestibulocochlear, and vagus. olfactory, optic, and facial. olfactory, optic, and vestibulocochlear. optic, facial, and vestibulocochlear. | olfactory, optic, and vestibulocochlear. |
| The part(s) of the cerebrum associated with anger, fear, and sorrow is (are) the: limbic system. corpus callosum. temporal lobes. caudate nucleus. | limbic system. |
| Sensory neurons can operate in autonomic reflex arcs. True False | True |
| Which plexus contains nerves that innervate the lower part of the shoulder and the entire arm? Brachial Cervical Lumbar Sacral | Brachial |
| Which is not true about sympathetic postganglionic neurons? They are usually longer than preganglionic neurons. They produce acetylcholine. They produce norepinephrine. They have acetylcholine receptors on their dendrites. | They produce acetylcholine. |
| Beta receptors: are cholinergic. bind acetylcholine. bind norepinephrine. bind the toxin muscarine. | bind norepinephrine. |
| Which part of the vertebral column has one more pair of nerves coming from it than it has vertebrae? Cervical Thoracic Lumbar Both B and C | Cervical |
| The nerve commonly called the vagus nerve is the _____ cranial. ninth tenth eleventh twelfth | tenth |
| The autonomic nervous system includes only efferent neurons. True False | False |
| The spinal nerves are connected to the spinal cord and consist of _____ pairs. 12 21 31 41 | 31 |
| Impulses from which system play a part in arousing or alerting the cerebrum? Reticular activating system Limbic system Cerebral cortex Cerebellar cortex | Reticular activating system |
| There are _____ ventricles in the brain. two three four five | four |
| Effectors that have single innervation by the autonomic nervous system are innervated only by the parasympathetic division. True False | False |
| The areas specializing in language functions are found in the left cerebral hemisphere in: about 10% of the population. about 50% of the population. about 90% of the population. all people. | about 90% of the population. |
| The peripheral nervous system includes: only spinal nerves. only spinal nerves and their branches. only cranial nerves, spinal nerves, and their branches. cranial nerves, the spinal cord, spinal nerves, and their branches. | only cranial nerves, spinal nerves, and their branches. |
| The cervical plexus: is found deep in the neck. is formed by the ventral rami of the first four cervical nerves and part of C5. includes the phrenic nerve. All of the above are correct. | All of the above are correct. |
| Which of the following might occur from the stimulation of parasympathetic fibers? Goose pimples Dilation of blood vessels to skeletal muscles Increased blood sugar Increased peristalsis in the digestive tract | Increased peristalsis in the digestive tract |
| Cerebrospinal fluid is found in all of the following except the: subarachnoid space. central canal. third ventricle. subdural space. | subdural space. |
| Axon terminals that secrete acetylcholine are called cholinergic terminals. True False | True |
| Which of the following is not a plexus of the spinal nerves? Cervical Brachial Lumbar Thoracic | Thoracic |
| The brainstem does not include the: pons. medulla. midbrain. cerebellum. | cerebellum. |
| The cranial nerve that arises from the spinal cord is the: abducens. accessory. glossopharyngeal. vagus. | accessory. |
| “Fight-or-flight” physiological changes include all of the following except: increased conversion of glycogen into glucose. constriction of respiratory airways. increased sweating. dilation of blood vessels in skeletal muscles. | constriction of respiratory airways. |
| Several “vital centers” are located in the: basal ganglia. cerebrum. cerebellum. medulla. | medulla. |
| Nerve fibers of the spinothalamic tract are: sensory. motor. descending. none of the above. | sensory. |
| All cell bodies of the autonomic nervous system are located within the CNS. True False | False |
| The layer of the meninges that serves as the inner periosteum of the cranial bone is the: pia mater. arachnoid membrane. dura mater. None of the above is correct. | dura mater. |
| All of the following cranial nerves have a functional classification of motor except: oculomotor. trochlear. vestibulocochlear. accessory. | vestibulocochlear. |
| Which of the following cranial nerves is responsible for movements of the tongue? Olfactory Trigeminal Trochlear Hypoglossal | Hypoglossal |
| The main divisions of the central nervous system are the: brain, spinal cord, and autonomic nerves. brain, spinal cord, and peripheral nerves. brain and spinal cord. sensory division and motor division. | brain and spinal cord. |
| Visceral effectors are innervated by sympathetic fibers. True False | True |
| Conduction to autonomic effectors requires only one efferent neuron. True False | false |
| Spinal nerves are _____ fibers. only sensory only motor completely autonomic motor and sensory | motor and sensory |
| Which is the only plexus that contains fibers from the thoracic region of the spinal cord? Cervical Brachial Lumbar Sacral | Brachial |
| Which is(are) the neurotransmitter(s) in a somatic motor pathway? Acetylcholine Amines Amino acids Neuropeptides | Acetylcholine |
| A mixed nerve is one that: goes both to the skin surface and to the viscera. has its pathway mixed with other nerves. carries both sensory and motor fibers. carries large and small motor fibers. | carries both sensory and motor fibers. |
| The part of the brain that can directly influence or inhibit the release of hormones from the pituitary is the: hypothalamus. thalamus. medulla. midbrain. | hypothalamus. |
| Acetylcholine can stimulate _____ receptors. alpha beta nicotinic both alpha and beta | nicotinic |
| Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the _____ plexus. sacral cervical coccygeal lumbar | coccygeal |
| If the ventral nerve root of a spinal nerve were destroyed, a person would lose _____ related to that pathway. sensory perception willed movement only reflex activity both reflex activity and sensation | willed movement |
| The spinal tract that is located in the side of the cord, originates in the brain, and terminates in the spinal cord is the _____ tract. lateral corticospinal ventral spinothalamic dorsal corticospinal lateral spinothalamic | lateral corticospinal |
| The parasympathetic and sympathetic divisions always act with a cooperative influence, and through summation of the impulses, the effect can be increased. True False | false |
| Norepinephrine is liberated at: the dendrite ending. parasympathetic preganglionic nerve endings. most sympathetic postganglionic nerve endings. sympathetic preganglionic nerve endings. | most sympathetic postganglionic nerve endings. |
| Cerebrospinal fluid circulates through the ventricles, into the central canal and _____, and is absorbed back into the blood. subarachnoid space choroid plexuses spinal cord intraventricular foramen | subarachnoid space |
| The cerebellum acts with the _____ to produce skilled movement. hypothalamus thalamus pons cerebrum | cerebrum |
| The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic. True False | True |
| Which of the following is a correct statement? There are 7 cervical nerve pairs. There are 11 thoracic nerve pairs. There are 5 lumbar nerve pairs. All of the above are correct statements. | There are 5 lumbar nerve pairs. |
| Somatic motor and autonomic pathways share all of the following characteristics except: direction of information flow. location of peripheral fibers. number of neurons between central nervous system (CNS) and effector. acetylcholine. | number of neurons between central nervous system (CNS) and effector. |
| Normal infants will show the Babinski reflex up to the age of _____ years. 1.5-2 5 1 3 | 1.5-2 |
| The part of the brain that assists in the maintenance of balance is the: medulla. pons. cerebellum. hypothalamus. | cerebellum. |
| All of the following are examples of parasympathetic stimulation except: contraction of the urinary bladder. relaxation of the sphincters of the digestive tract. increased salivation. increased heart rate. | increased heart rate. |
| The cerebellum performs all of the following functions except: coordinates control of muscle action. helps control posture. controls cardiac function. controls skeletal muscles to maintain balance. | controls cardiac function. |
| Propranolol is an example of a: beta blocker. drug used to treat irregular heartbeats. drug used to treat hypertension. All of the above are correct. | All of the above are correct. |
| Which of the following is not true of the knee jerk reflex? It is a flexor reflex. It is an ipsilateral reflex. It is a spinal cord reflex. It does not have to involve the brain. | It is a flexor reflex. |
| All of the following cranial nerves are involved in proprioception except the: vagus. hypoglossal. accessory. abducens. | vagus. |
| Audition is a function of the _____ lobe. occipital temporal parietal frontal | temporal |
| If the dorsal root ganglia of the spinal nerve were destroyed, a person would lose _____ related to that pathway. sensory perception willed movement only reflex activity both reflex activity and sensation | sensory perception |
| Which of the following is not an example of sympathetic stimulation? Constriction of the bronchioles Decreased secretion of the pancreas Constriction of the urinary sphincters Dilation of skeletal muscle blood vessels | Constriction of the bronchioles |
| Afferent nerves or fibers are found only in the _____ nervous system. sensory autonomic central Both A and B are correct. | Both A and B are correct. |
| Which is not true of the dorsal nerve root? It is also called the posterior root. It includes the spinal ganglion. It includes sensory fibers. All of the above are true. | All of the above are true. |
| Which of the following is not a function of the hypothalamus? Production of hormones “Go between” of the psyche and the soma Appetite center Regulation of motor activity | Regulation of motor activity |
| The vomiting reflex is mediated by the: cerebrum. medulla. thalamus. cerebellum. | medulla. |
| Tic douloureux is a painful neuralgia of the _____ nerve. trigeminal vagus abducens olfactory | trigeminal |
| Which of the following is not associated with the oculomotor nerve? Movement of external eye muscles Closing and opening of the eye (blink reflex) Movement of intrinsic eye muscles Proprioception of eye muscles | Closing and opening of the eye (blink reflex) |
| Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate. olfactory trigeminal vagus hypoglossal | vagus |
| Damage to the _____ nerve could make the diaphragm unable to function. phrenic axillary radial medial cutaneous | phrenic |
| Impulses from the _____ play a part in arousing or alerting the cerebrum. pons thalamus cerebellum hypothalamus | thalamus |
| Cerebrospinal fluid is formed by filtration of blood in the: central canal. choroid plexuses. subarachnoid space. arachnoid villi. | choroid plexuses. |
| Most effectors of the autonomic nervous system are dually innervated by sympathetic and parasympathetic neurons. True False | True |
Created by:
kscalder