Download Questions on the Nervous system

Questions on the Nervous system
I-Define
- propriceptors
- irritability
- conductivity
- polarized membrane
- cranial nerve
- spinal nerve
- acetylcholine
- vagus nerve
II- Mention in short
- the three overlapping functions of the nervous system
- the very important system in homeostasis
- structural classification of nervous system
- functional classification of nervous system
- classification of the motor nervous system
- the two principle types of nerve cells and function of each
- common structure of neuron
- the complex receptors
- the simple receptors
- structural classification of neurons
- the lobes of cerebral hemisphere
- importance of central sulcus as anatomical landmark
- parts of brain stem
- structures that control CNS from outside to inside
- types of meninges
- centers present in medulla oblongata
- the names of spinal nerve plexuses
- differences between somatic and autonomic nervous systems
- body structures that receive only sympathetic fibers
- organs supplied by ANS
III- Complete
- the master controlling and communicating system is---------------- the second system important in body homeostasis
- the nerve fibers that convey impulses from sensory receptors to CNS is called -----------while that carry it from CNC to effector organs called-------------------- the effector organs in our body are-----------------------and---------------- nervous system under voluntary control is called--------------while that involuntary
is called------------------- ANS is subdivided into -------------------------and---------------------- supporting cells in CNS are called----------- the nerve cell that carry impulses is called------------ the cell body of neuron contains the usual organelles except----------------- neuron processes that convey messages toward thje cell body are called-------------while that conduct it away from cell body are------------ all axons branch at their terminal end to form ------------------,these contain vesicles
that contain chemicals called------------- the axonal terminal is separated from the next neuron by a tiny gap called---------- the whitish, fatty material that covers long nerve fibers is called---------------- axons outside the CNS are myelinated by ------------------cells
- clusters of cell bodies in CNS is called------------ while that outside it called-----------
- neuron processes running in CNS are called--------------while that outside it called-- the CNS is composed of-------------and-------------- white matter consists of --------------------while grey matter of-----------------and------- cell bodies of afferent and association neurons are always found in------------- the two major functions of neurons are------------------and-------------- when the inside of neuron is more positive and the outside is less positive ,the case
is called------------------- adequate stimulation of neuron opens the ------------ in its membrane
- reflexes that regulate involuntary muscles and glands are called----------while those
stimulate skeletal muscles are called------------- the first appearance of nervous system is called----------------- ,its anterior end
begins to expand at the ----------week
- the central canal of the neural tube enlarges in four regions of the brain called----- elevated ridges on brain surface are called------ while depressions are called------- the cerebral hemispheres are separated by deep fissure called----------------- the relay station for sensory impulses in the brain is called ------------------ the--------------------hangs from the anterior floor of hypothalamus
- the ----------------------are knots of capillaries within each ventricle, it forms CSF
- the ---------------plays a role in consciousness and the awake/sleep cycles
- the--------------controls balance and equilibrium
- CSF returns to the blood through ------------------------- the most inferior part of the brain stem is called----------------- the number of spinal nerves is-----------------pairs
-the collection of spinal nerves at the inferior end of vertebral canal is called---------- the best site for GSF tapping is below------------------- spinal nerve is formed by fusion of ------------------------------- spinal nerve ,after being formed, divides into ---------------------- the only cranial nerve that extends to thorax and abdomen is----------- most cranial nerves are ---------------,there are three pure sensory , they are --------- the external eye muscles are supplied by cranial nerves ----------------------------- muscles of facial expression are supplied by------------- the ventral rami of some spinal nerves form network of nerves called---------- the outermost layer of meninges is------------------- the spinal cord extends from----------------to------------------lumber vertebra
- the motor subdivision of the PNS that controls activities automatically is called--- the autonomic nervous system is subdivided into --------------------------- the sympathetic division is also called-----------------while parasympathetic is called--- fight –or- flight system is -----------------------while house keeping is------------- the first cranial nerve is---------------while the seventh is------------- the second cranial nerve is ------------------while the VIII is--------------
IV- Put True or False
- myelin increases the transmission rate of impulses
- cell bodies of afferent neurons are always found in ganglia outside CNS
- the plasma membrane in inactive neuron is polarized
- the nerve impulse is all-or-none response
- until repolarization occurs, a neuron cannot conduct another impulse
- transmission of an impulse is only electrical event
- some reflexes involve only spinal cord
- some reflexes involve the brain
- grey matter in the brain is deep
- the ANS is also called involuntary nervous system
- CSF is continuously moving
- the fourth ventricle of the brain is continuous with the central canal of spinal
cord
- the blood-brain barrier is the least permeable capillaries in the body
- meningeal covering do not end at L2
- there is no possibility of damaging the cord below L3
- the central canal of spinal cord contains CSF
- grey matter of spinal cord surrounds the central canal
- cranial nerves primarily serves head and neck
- spinal nerve and both rami are mixed nerves
- the arms of ANS serve the same organ but has opposite effects
- the parasympathetic fibers are cholinergic
- sympathetic fibers are adrenergic
- the last area of the brain to mature is hypothalamus
- neurons die throughout life are not replaced
- brain growth ends in young adults
- maternal and environmental factors may impair embryonic brain development
IV-Match table A with table B
Table A( )-thalamus
Table 1-control balance and equilibrium
( )-hypothalamus
2-plays a role in the awake/sleep cycles
( )-brain stem
3-crude recognition of sensation
( )-cerebellum
4-plays a role in temperature regulation
( )-postcentral gyrus
5-primary motor area
6-primary sensory area
TableA ( )-olfactory
TableB1-extends to thorax and abdomen
( )-oculomotor
2-purely sensory
( )-facial
3-supplies muscles of facial expression
( )-vagus
4-branch of cervical plexus
( )-phrenic
5-supplies eye muscles
6-spinal nerve
TableA
Table B
( )-Olfactory nerve
a-activates facial muscles
( )-Vagus
b-first cranial nerve
( )-Trigeminal
c-nerve of hearing and equilibrium
( )-Vestibulococlear
d-supplies thoracic and abdominal viscera
( )-Facial
e-fifth cranial nerve
f-motor nerve for the tongue