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Anatomy
visceral systems
46
Anatomy
Undergraduate 3
04/18/2011

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Term
Longitudinal Fissure
Definition
Divides the cerebrum into the left and right hemispheres
Term
Which Cranial nerve(s) are located in the Diencephalon?
Definition
Cranial nerve II (Optic Nerve)
Term
Ganglion
Definition
Collection of nerves located outside of the CNS
Term
Wide posterior part joining posterior and inferior lobes of lateral ventricle is called?
Definition
Atrium
Term
Third ventricle is located between the two halves of the ________
Definition
Thalamus
Term
The Aqueduct of Sulvius passes through the ______
Definition
Midbrain
Term
From outermost to innermost the three layers of connective tissue are?
Definition
Dura Mater
Arachnoid Mater
Pia Mater
Term
Dura Mater invaginates into the sagittal fissure to form the ______ _______ and into the horizontal fissure to form the ______ _______
Definition
Falx Cerebri
Tentorium Cerbelli
Term
Which layer of Meninges contains the blood vessels?
How is it connected to the layer deeper to it?
Definition
Arachnoid Mater
Denticulate ligaments
Term
Brain receives blood from two sources:
Definition
Internal carotid arteries
Vertebral arteries
Term
The vertebral arteries anastomose to form the _______ artery which runs up the _______
Definition
Basilic
Pons
Term
Internal carotid artery splits into the ______ and _______ cerebral arteries
Definition
Middle
Anterior
Term
Sagittal surface of brain supplied by?
Definition
Anterior and posterior cerebral arteries
Term
What part of the brain does the middle cerebral artery supply?
Definition
centre
Term
Veins of the brain empty into the ______ ______ sinuses which then drain into the _______ _______ Vein
Definition
Dural Venous
Internal Jugular
Term
PNS divided into...
Definition
Somatic and autonomic
Term
Somatic nervous system provides what?
With how many Spinal nerves?
And how many Cranial nerves?
Definition
Voluntary Motor Control
General Sensation
31 spinal nerves
12 cranial nerves
Term
Spinal nerves exit the spine via?
Definition
Intervertebral Foramina
Term
Each spinal nerve has a Dorsal and Ventral root. Which is sensory and which is motor?
Definition
Dorsal-Sensory
Ventral-Motor
Term
Why are the sacral nerves unique?
Definition
Split into rami before exiting the foramina
Term
Where are the cell bodies of motor nerves located? And where do the axons run?
Definition
anterior horn with axons running into the ventral root
Term
Where are the cell bodies of the sensory nerves found?
Definition
In the Dorsal Root Ganglia
Term
The autonomic nervous system provides?
Definition
Involuntary Motor Control
Visceral sensory perception
Term
Dorsal columns, aka Dorsal ________ carry discriminatory ____, joint position and ______
Definition
Fasiculi
touch
vibration
Term
Dorsal column fibers run from below ___ and travel in the more lateral _________ ________
Definition
T6 Fasiculus Cuneatus
Term
The most direct motor pathway is called the______ tract.
It's fibers travel through the ______ _____, the _______ _________, the ____ and then through the _____ of the medulla.
Definition
Corticospinal
internal capsule
cerebral peduncles
pons
pyramids
Term
Fibers of the corticospinal tract _________ (crossover) in the lower ______ to form the _______ corticospinal tract. The rest stay on same side and form the ________ corticospinal tract.
All corticospinal fibers terminate in the _____ ______ of the spinal cord
Definition
decussate
medulla, lateral
anterior
anterior horn
Term
Not including corticospinal what are the motor tracts? Collectively known as?
Definition
Rubrospinal, vestibulospinal and reticulospinal
Extra pyramidal system
Term
Which foramina does the trigeminal nerve innervate?
Definition
Superior orbital fissure
Foramen Rotundum
Foramen ovale
Term
Optic nerve fibers coalesce in the ______ ______ and emerge the left and right optic ______.
these pass posteriorly and synapse in the lateral ______ _______ of the ________.
Definition
Optic chiasm
tracts
geniculate bodies
thalamus
Term
Cranial nerves located in pons
Definition
V
VI
VII
Term
Central Sulcus
Definition
groove between pre- and post central gyri
Term
Cranial nerves in the midbrain
Definition
III
IV
Term
Otherwise known as the great parasympathetic nerve of the thorax and abdomen
Definition
Vagus nerve (X)
Term
Cranial nerve supplying trapezium and sternomastoid muscles
Definition
Spinal accessory nerve (XI)
Term
ANS can be subdivided into...
Definition
Sympathetic and parasympathetic
Term
Sympatheitc nerves arise from ____ to ___ with parasympathetic nerves originating from CN __, __, __ and __ and sacral levels ____
Definition
T1, L6
III, VII, IX and X
S2,3,4
Term
Sympathetic system called ________ system
Parasympathetic called______system
Definition
Thoracolumbar
Craniosacral
Term
Sympathetic outflow acts to do two things
Definition
shunt blood away from viscera and into skeletal muscles and sweat glands
cause release of epinephrine and norepinephrine (fight or flight)
Term
The optic canal is ______ to the Clinoid process (ant)
a)lateral
b)anterior
c)posterior
d)medial
e)superior
Definition
anterior
Term
the pelvic splanchnic nerves send fibers where?
Definition
Distal G.I. Tract
bladder

urethra
blood flow to penis and clitoris
Term
Sympathetic innervation of organs above diaphragm generally come from?
Definition
Upper ganglia in sypathetic trunk (C1-T4)
Term
Where do the least splanchnic nerves synapse?
Definition
Ganglia of renal plexuses
Term
Which nerves synapse on the preaortic ganglia (celiac, superior and inferior mesenteric)?
Definition
Greater, Lesser thoracic splanchnics
Lumbar Splanchnics
Term
The cribriform plate is part of which bone?
a)ethmoid
b)temporal
c)parietal
d)sphenoid
e)nasal
Definition
ethmoid
Term
Internal acoustic meatus is part of which bone?
a)frontal
b)temporal
c)ethmoid
d)sphenoid
e)occipital
Definition
Temporal
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