80 terms

Neuro test 1 class 2

Gross anatomy
______: larger anatomy that can be seen
Fine anatomy
______: micro anatomy
Corpus colosum
_______: the largest connection between the left and right hemispheres
Neural groove
The brain develops from a __________ at around 4-5 weeks.
Vessicles, cephalons
4-5 weeks after conception, the embryo has 3 ______, which later develop into ________.
_____(forebrain)- develops into telen/diencephalon
(midbrain)- develops into mesencephalon
______: develops into met encephalon/myelincephalon
Cerebrum, basal ganglion
The telencephalon becomes the _______ and the _______.
The diencephalon becomes the _______.
The mesencephalon becomes the ________.
The metencephalon makes the _________.
Medulla oblongata
The myelencephalon makes the __________.
Fontanella, 1.5
The soft spot on a baby's skull where the fissures have yet to meet is called the ________. it is open in the baby until around _______ years of age.
Where the fissures meet in an adult's skull is called the ________.
Brain, spinal chord
The central nervous system is composed of two major components: the _____ and the _______.
The CNS is protected by three layers called the _______.
________:Tough, strong And fibrous membrane, the outermost layer, attached to the skull.
Epidural, potential
______: a space between the skull/bones and duramater; called a ______ space because there is not a gap all the time, but it could potentially open.
Arachnoid, CSF
_____: thin and vascular membrane (has no veins or arteries)
Located between the duramater and piamater
Filled with _____
The space between the arachnoid and duramater is called the ______
The space between the arachnoid and the piamater is called the _______.
This is connected to the ventricular system
_____: a very thin, transparent layer made of connective tissue that sits on the brain tissue
Falx cerebri
_______- knife shaped portion inserted into the largest of the brain, the inter hemispheric fissure
Tintorium cerebelli
_______: tent shaped portion of the duramater positioned at the fissure between the cerebrum and cerebellum
Falx cerebelli
______: separates the two hemispheres of the cerebellum
CSF, subarachnoid layer
_______: a Clear, colorless fluid which is produced by the choroid plexus, which is located in the ventricles
Acts as a shock absorber and protects against trauma.
The ventricular system is connected to the _______.
Lumbar tap
______: the injection of a needle at L3; A sample of CSF is taken and sent to a lab to screen for infections.
Cerebrum, gyri
The largest and most visible portion of the brain is the ______. It's surface is represented by many bumps and convulsions referred to as _____.
_____: the fissure/valleys that separate gyri and lobes from each other
The surface of the cerebrum is covered by the ________.
The message behind everything we do winds up here.
The cortex has ___ different layers of cells.
Longitudinal (interheispheric) fissure
The fissure that separates the left and right hemispheres is called the _____
Central sulcus
______: located at the dorsal and lateral view of the brain.
Has a depth of ~2cm
Separates the frontal from the parietal lobe
Pre central gyrus
______: gyri located beside the central sulcus in the frontal lobe, involved with motor activity
Post central gyrus
_____: gyri located beside the central sulcus in the parietal lobe, involved with sensory activity
Parcentral lobule
The combination of the precentralgyrus and post central gurus is referred to as the _______
Lateral sulcus
______: separates the frontal and temporal lobe anteriorly and posteriorly separates the parietal lobe
Transverse fissure
_______: Separates the cerebrum from the cerebellum.
The tintorium cerebelli is inserted into this fissure.
Calcarince fissure
The _________ is only seen at the medial aspect of the brain
Positioned on the occipital lobe
Divides the primary visual cortex into the upper and lower operculum
Upper, lower
The calcarine fissure separates the primary visual cortex into two portions: the _____ operculum and the ______ operculum
Parietal occipital sulcus
The _______ separates the parietal and occipital lobe
Superior temporal gyrus
_____(STG): an important gurus of the temporal lobef
The _______ lobes:
Frontal, parietal, occipital
The midsagital view of the brain:
The _____, ______, and ______ lobes are observable, as well as the cerebellum and arbor vitas (the white matter within the cerebellum)
The ______ lobe:
Contains the pre central gyrus
Is neighbored posteriorly to the parietal lobe
Is associated with motor activity
The ______ area of the frontal lobe:
Associated with attention
People afflicted with short attention spans generally have damage to this portion of the brain
Precentral Gyrus, homunculus
_______: the primary motor cortex area. The pre central gyrus is the location, the primary motor cortex is the function
The ________ resides in this area
_______: a physiological/functional representation of sensory or motor perception
Differed portions of the body are represented in a "map"
Broadman's areas, 44, 22, 17
There are sixty cytoarchitectural areas in the brain known as ______.
Broca's area: _____
Wernicke's area: ______
visual cortex: ____
Broca's area
_______: the anterior speech cortex
Generally located in the left hemisphere in the frontal lobe
Pre central sulcus
______: separates the pre central gyrus from the other parts of the frontal lobes
Olfactory, gray, tract
_______ tract/bulb:
The bulb is made of ________ matter
Located at inferior surface of the frontal lobe
______: myelinated bundle of fibers connect to CN#1
Olfactory: the only sense we have that doesn't pass through the thalamus
The loss of the sense of smell due to damage to the frontal lobe is called:_______
Area triangularis
_______: the anatomical representation of broca's area
Located in the inferior frontal gyrus
Prefrontal cortex
_______: located at the front of the frontal lobe; associated with attention, pragmatics, abstract thinking, and decision making
Frontal, superior, mid
The ____, _____, and ____ Sulci of the frontal lobe are important to identify the gyri
Parietal lobe
_____: neighbored anteriorly to the frontal, inferior to the temporal, and posterior to the occipital lobe.
Associated with perceptions such as heat, pain,touch,and sharpness
Post central gyrus
______: primary somatasensory (somesthetic) cortex
Contains a sensory homunculus
Preoccipital notch
_______: a notch at the inferior surface of the parietal lobe; helps to separate the parietal and occipital love
Intraparietal sulcus
______: an oblique line that separates the parietal lobe into two smaller lobules: the inferior and superior lobules
Inferior lobule
_____: contains 2 important gyri: the supramarginal gyrus and angular gyrus
If either of these are damaged, Alexia, agraphia, or incalculia can occur
______: the inability to do math
Caused by damage to the supramarginql or angular gyri in the parietal love
______: the inability to write
Caused by damage to the supra marginal or angular gyri in the parietal lobe
_____: the inability to read
Caused by damage to the supra marginal or angular gyri in the parietal lobe
Temporal lobe
_______: bordered anteriorly to the frontal lobe, posteriorly to the occipital lobe, an superiorly to the parietal lobe
Contains 3 major gyri: superior, mid, and temporal gyri that are positioned parallel to the lateral sulcus
Arcuate fasciculus
______: Connects the wernickes to the broca's area
Wernicke's area
______: broadman's area #22
Receptive language cortex
Connect to the brocas area via the arcuate fasciculus
Transverse gyri of heschel
_________: located deep within the lateral sulcus within the temporal lobe
The primary auditory cortex
Broadmans area # 41&42
Planum temporale
________: the smooth area at the posterior of the superior temporal gyrus
Parahippocampal gyrus
________: in the medial aspect of the temporal lobe
Surrounds the hippocampus (the memory cabinet of t brain)
Deals with Memory retrieval and encoding
Uncus, limbic
______: Located at the medial aspect of the temporal lobe near the hypothalamus
Deals with rage, fear, and other equally negative emotions
Part of the ______ system
Occipital lobe
______: most posterior lobe of the cerebrum
Deals with vision
Important landmarks: calcarine fissure, primary visual cortex, association visual cortices, lingual gyrus
Calcarine fissure
________: located At the medial aspect of the occipital lobe,
divides the primary visual Cortex into 2 portions: the upper and lower operculum
Primary visual cortex
________: Broadman's area 17
Cortical blindness associated with damage to this area
Association visual cortices
______: located superior to the primary visual cortex within the occipital lobe.
Broadman's Areas #18 & 9
Lingual gyrus
_______: nothing to do with talking; it gets it's name because it is shaped like a tongue
Located below the calcimine fissure within the occipital lobe
Insula lobe
_______: there are 2, one on each side of the brain
Unobservable unless a lateral portion of the brain is cut
A group of vertically oriented gyri
Associated with the limbic system, visceral functions, temperature of skin, full bladder, degree of pain, and fight/flight.
Evolutionarily older part of the brain
Circular sulcus
Surrounds the insular lobe
_______: temperature, full bladder, degree of pain, etc.