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GA2_E4_Neuroanatomy

QuestionAnswer
Consider a hemidissection of the right L1 spinal cord. In which area of the body would you expect the following deficits: ___ pain ___ discriminating touch ___ voluntary motor a) R Arm b) L Arm c) R Leg d) L Leg ?? 168 Pain = d; Disc. touch = c; Voluntary motor = c
What two groups of fibers terminate/synapse in the ventral posterior nucleus of the thalamus? ## 2nd order spinothalamic nn.; 2nd order medial lemniscus nn.
The C8 spinal nerve attaches to the ___ segment of the spinal cord ?? 8th/1st thoracic
Consider a lesion in the right internal capsule. What deficits are expected in the left leg? a) pain b) discriminating touch c) voluntary motor control d) no deficits expected ?? a,b,c?
Name the collections of neuron cell bodies for the second order neuron in the general sensory pathways (nuclei or ganglia) ## Nucleus gracilus and nucleus cuneatus (Original answer: Area's 5 & 7)
The neuron cell bodies of fibers comprising the spinothalamic tract are located in ______ ## Nucleus proprius (in the dorsal horn)
Consider a hemidissection of the left T5 spinal cord. In which area of the body would you expect the following deficits? ___ pain ___ discriminating touch ___ voluntary motor a) R Arm b) L Arm c) R Leg d) L Leg ?? Pain = a; Disc. touch = b; Voluntary motor = b (Original answer: Pain = c, Disc. touch = d, Voluntary motor = d)
Consider a hemidissection of the RIGHT T4 spinal cord. In which area of the body would you expect the following deficits? ___ pain ___ discriminating touch ___ voluntary motor a) R Arm b) L Arm c) R Leg d) L Leg ?? Pain = b; Disc. touch = a; Voluntary motor = a
In the three neuron pathway for general sensation, the second order neuron from the right side terminates on the ____ (give side and nucleus) ?? Left ventral posterior nucleus of thalamus)
Areas 3,1, 2 receive input from the ______ ?? Ventral posterior nucleus of thalamus
Define: spinal segment ## A portion of spinal cord to which a spinal nerve attaches
Cranial nerve that supplies the sensory input to the carotid body and sinus? ## CN 9. Glossopharyngeal Nerve
Cranial nerve (name or number) that supplies the sphincter pupillae muscle ## CN3 Occulomotor (Netter 117)
Describe the function of the corpus callosum ## Connects/carries info between the left and right cerebral hemispheres
Specific name given to the pointed inferior end of the spinal cord at or just above L2 ## Conus medullaris (Netter 157)
Consider a lesion in the right internal capsule. What SENSORY deficits are expected in the right arm? a) pain b) discriminating touch c) voluntary motor control d) no deficits expected ## d
Cranial nerve that supplies taste to the anterior 2/3rds of tongue ## Facial nerve (CN VII)
Fibers from the RIGHT nuclei gracilis and cuneatus terminate on the _____________ ## Left ventral posterior nucleus of thalamus
Portion of the cerebral cortex that is involved in judgment, personality, and emotions ## Prefrontal lobe
Name (NOT number) of cranial nerve that supplies motor to the muscles of mastication ## Trigeminal (Netter 117)
Fibers of the medial lemniscus terminate on the ____ ## Ventral posterior nucleus of thalamus
Cranial nerve that is parasympathetic to the lacrimal gland ## VII (Facial n.) (Netter 117)
Name given to the area located immediately external to the dura mater of spinal cord. 160 Epidural space (Netter 163)
Specific name given to the white matter of the spinal cord located between the ventral roots and dorsal roots 160 Lateral Funiculi
Cranial nerves associated with the medulla 161 CN 9,10,11,12
Where are neuron cell bodies for fibers forming fasciculus gracilis? 161 Dorsal root ganglia of T6 and below
Specific landmark on spinal cord where the dorsal roots attach 161 Dorsolateral sulcus (Netter 126)
Contains ascending ipsilateral sensory fibers (proprioception, vibration, discriminating touch) from T6 and above. 161 Fasiculus Cuneatus
Contains ascending ipsilateral sensory fibers (vibration, discriminating touch) from T6 and below. 161 Fasiculus Gracilis
Group of fibers that connects the medulla and cerebellum 161 Inferior cerebellar peduncle
Part of brain where nucleus cuneatus is located 161 Medulla
Part of brainstem which contains nuclei gracilis and cuneatus 161 Medulla
The hypoglossal n. exits the brainstem between which 2 structures? 161 Olive and pyramids (Netter 113)
Portion of the medulla where corticospinal fibers are located 161 Pyramids (and decussation of pyramids)
Fibers of the RIGHT fasciculus cuneatus terminate on the (left or Right)A._____, Name the nucleus B. _____ 161 Right; Nucleus cuneatus
Dermatomes represented in fasciculus cuneatus. 161 T6 and above
Specific landmark on spinal cord where the ventral roots attach 161 Ventrolateral sulcus (Netter 126)
Group of fibers that connects the pons with the cerebellum 162 Middle cerebellar peduncle
Specific named part of the pons that forms the floor of the 4th ventricle; contains nuclei and tracts 162 Tegmentum/Dorsal Pons
Cranial nerves associated with the pons 163 5, 6, 7, 8
IN the midbrain, corticospinal fibers are located in the ___ (be VERY specific) 163 Basal peduncle
Specific named part of the midbrain through which the corticospinal fibers pass 163 Basal peduncle
Specific name given to that part of midbrain located between the cerebral aqueduct and the substantia nigra 163 Tegmentum
Area 17 of the cerebral cortex receiving fibers from ________. 164 165 Lateral geniculate
NUCLEUS which sends fibers to area 17 of cerebral cortex 164 165 Lateral geniculate
Which of the following are considered upper motor neurons? A. Caudate Nucleus B. Red Nucleus C. Mammillary Nucleus D. amygdaloid nucleus 164 166 Caudate and Red Nuclei
Cranial nerves attached to the midbrain 164 3 and 4
2 paired bumps located on the inferior aspect of the DORSAL surface of the midbrain 164 colliculi
The superior and inferior colliculi (corpora quarigemini) are specifically located in the ______ portion of the _____ 164 Dorsal portion of Midbrain (Tectum)
Area of the DIENCEPHALON that contains the pineal gland 164 Epithalamus
Area of the DIENCEPHALON (typo should be midbrain?) that contains the substantia nigra and other motor nuclei 164 Extrapyramidal motor nucleus
The mamillary nucleus is one of the nuclei of the _____ 164 Hypothalamus of diencephalon
Midbrain nucleus that sends fibers to the medial geniculate 164 Inferior Colliculus nucleus (-us = singular, -i = plural)
Nucleus involved in the visual pathway; the termination of the optic tract 164 Lateral Geniculate nucleus
All fibers terminating on area 17 have their neuron cell bodies in the ______ 164 Lateral geniculate nucleus
Thalamic nucleus that sends information to visual cortex 164 Lateral geniculate nucleus
Fibers from the inferior colliculus terminate on the ________ 164 Medial geniculate nucleus
Part of thalamus involved with the auditory pathway. 164 Medial Geniculate nucleus
The Primary Auditory cortex receives information from the ______ nucleus. 164 Medial Geniculate nucleus
Level of CNS where nuclei for oculomotor nerve are located 164 Midbrain
Give the location of the inferior colliculis. Do NOT give corpora quadrigemini as your answer. 164 On the dorsal side of the midbrain, just inf. to the sup. Colliculis
Extrapyramidal motor nucleus located in the midbrain that is the site of pathology in Parkinson's. 164 Substantia Nigra
In the general sensory pathways, all second order neurons terminate on the ________. 164 Ventral Posterior Nucleus of the Thalamus
Area 17 receives fibers from ___ 164, 165 Lateral geniculate nucleus
Fibers belonging to which general classification connect the primary and association cortices for vision? 165 166 Association fibers
Numbers given to the Primary Somatic Sensory Area 165 Areas 3, 1, & 2)
functional area on lateral frontal lobe; also known as "areas 44, 45" 165 Motor Speech Area (or Broca's area)
LOBE in which the general sensory cortex is located? 165 Parietal Lobe
Specific location (i.e. structure; no numbers) of the "primary sensory area" 165 Postcentral gyrus
Major function of the precentral gyrus 165 Primary motor area
Name of functional area adjacent to the calcarine fissure, mostly on the medial aspect 165 Primary Visual Area
BASAL NUCLEUS that has both limbic and olfactory functions . 166 Amygdaloid
An ovoid nucleus located at the anterior tip of the tail of the caudate, in the temporal lobe; part of the olfactory and limbic systems (also – ‘basal nucleus located at tail/inferior end of caudate nucleus’) 166 Amygdaloid nucleus
Fibers originating in the area of 17 and terminating on ipsilateral areas 18 & 19 are categorized as ______ fibers. 166 Association
What type of fiber connects the primary auditory cortex with the auditory association cortex? 166 Association fibers
Type of fibers connecting cortices in opposite hemispheres (example: corpus callosum) 166 Commissural fibers
General function of the neostriatum 166 Exrtrapyramidal motor
Name given to fiber tract running from the hippocampus to the mammillary bodies 166 Fornix
Fibers passing from the thalamus to area 3,1,2 are part of the ___ and are classified as ____ fibers 166 Internal capsule; projection
The fornix is a group of fibers which begins in the hippocampus and terminates on the _________ 166 Mamillary nucleus
Type of fibers connecting the cortex with subcortical areas (the internal capsule would be an example of this type) 166 Projection fibers
Which of the following nuclei are located in the midbrain? A.nucleus gracilus B. Red Nucleus C. Inferior Olive D. Superior Colliculus 164 Red Nucleus, Superior Colliculus
BASAL NUCLEUS that has both limbic and motor functions 166?? Amygdaloid
The dural sac extends from foramen magnum to ____ 167 2nd sacral segment
Part of the brain that maintains equilibrium, adjusts muscle tone, influences synergy of muscle movement, etc. 167 Cerebellum
tooth=like lateral extensions of the pia around the cord; anchors the pia and arachnoid to the dura 167 Denticulate ligament
Cord of pia mater extending downward from the inferior end of the spinal cord 167 Filum terminale
Name given to the cord of pia mater running downward from the inferior end of the spinal cord 167 Filum terminale
Structure that anchors spinal cord to the coccyx? 167 Filum Terminale (Netter 157)
Name of sheet of dura mater that separates cerebellum and cerebrum 167 Tentorium cerebelli
Structure that forms/secretes CSF 168 Choroid plexus
Vascular connective tissue inside the ventricles which forms the cerebrospinal fluid 168 Choroid plexus
Cerebrospinal fluid is secreted by _____and absorbed into a dural venous sinus via the _____. 168 Choroid plexus; arachnoid villi
In the absorption of cerebrospinal fluid (CSF), the CSF passes from the subarachnoid space into the A.___ via the B._____. 168 Dural Sinuses, Arachnoid Villi
Cerebrospinal fluid passes from 4th ventricle in the ______ 168 Medial and lateral apertures to the subarachnoid space
Cerebrospinal fluid flows from the 4th ventricle into the ______ through the medial and lateral apertures. 168 Subarachnoid space
In the absorption of CSF, the fluid moves across the arachnoid granulations FROM the A) _____ INTO the B)______ 168 Subarachnoid space, dural sinus
Specific name given to the WHITE matter of the spinal cord located between the ventral roots and the ventral median fissure 160 Anterior funiculi
Name the BASAL nucleus that is a wedge-shaped extrapyramidal motor nucleus composed of two distinctly different nuclei 166 Lenticular nucleus
Alternate name for the dorsal pons 162 Tegmentum
Extends from the foramen magnum to the second sacral segment (2 words) 167 Dural sac
Connects the lateral and third ventricles 168 Interventricular foramina
Nucleus located in the floor of the hypothalamus; part of limbic system 164 Mamillary nucleus
Besides the substantia nigra, an extrapyramidal nucleus located inside the midbrain 164 Red nucleus
Created by: sor32663