Chapter 14 Brain Flashcards
tracts that run from the right to the left side of the brain are called
commissural tracts
tracts that run from the cerebrum to the pons would be called
projection
a major part of the brain that controls intellect, movement as well as sensation
cerebrum
large cleft between the right and left cerebral hemispheres
longitudinal fissure
crevice found between the frontal and parietal lobes of the cerebrum
central sulcus
capillary network that makes cerebrospinal fluid
choroid plexus
type of neuroglial cell that lines the third ventricle
ependyma
name the brain ventricle that is paired (two of them)
lateral ventricles
name the ventricle that is flanked on either side by the thalamus
third
name the connection between the third and fourth ventricle
cerebral aqueduct
name the layer of meninges that is partially fused to the cranium
dura mater
name the deepest layer of the brain meninges
pia mater
name the blood vessel that is found in the longitudinal fissure
superior sagittal sinus
name the dense connective tissue fold found in the longitudinal fissure that helps maintain position of the brain
falx cerebri
name the meningeal layer made of dense fibrous connective tissue
dura mater
name the meningeal space where the CSF is found
subarachnoid space
what is the name for the tree-like extensions of the arachnoid that protrude into the superior sagittal sinus
arachnoid villi
what is found inside of the superior sagittal sinus
blood
what is the term for the outer gray matter “rim” that can be seen on the edge of the cerebrum
cortex
what is found in the cerebral cortex
neuron cell bodies
in which lobe of the brain is the primary visual cortex found
occipital
lobe of the brain where the primary auditory cortex is found
temporal
the wormy folds seen on the surface of the cerebrum are called
gyri
primary motor cortex is found in this gyrus
precentral
where the primary somatosensory cortex is found in the cerebrum
postcentral gyrus
the term for groups of neuron cell bodies in the CNS
nucleus
part of the cerebrum that functions in controlling semi-automatic movements and patterns of movement
basal nuclei
major inhibitory neurotransmitter of the basal nuclei produced by the substantia nigra
dopamine
name for the caricature of the body as seen on the pre- and postcentral gyrus
homunculus
most superior part of the brain stem
mesencephalon (midbrain)
part of the diencephalon where sensory impulses synapse before reaching the cerebral cortex
thalamus
name for the system of the brain that includes structures involved in motivation, learning, and emotions
limbic system
part of the limbic system important in learning (long-term memory)
hippocampus
tract superior to the thalamus that connects structures of the limbic system
fornix
major functions of the cerebellum
coordination and equilibrium
structure that connects the left and right cerebellar hemispheres
vermis
tree-like white matter structure seen in mid-sagittal section of the cerebellum
arbor vitae
part of the diencephalon that controls appetite and thirst
hypothalamus
part of the diencephalon that controls the pituitary gland
hypothalamus
part of the brain that makes melatonin
epithalamus
part of the diencephalon that plays a role in smell
hypothalamus
the structure that “connects” the right and left thalami through the third ventricle of the brain
intermediate mass
the mamillary bodies are part of this major part of the diencephalon
hypothalamus
part of the brain that inhibits the basal nuclei by synthesizing dopamine
substantia nigra
the part of the mesencephalon that is responsible for movement of the head to sound
inferior colliculi
name for the four structures called the inferior and superior colliculi
corpora quadrigemina
structures located on the anterior side of the mesencephalon that contain descending motor pyramidal tracts
cerebral peduncles
part of the mesencephalon that controls the movement of the head (and eyes) towards light
superior colliculi
part of the brain stem where the substantia nigra is located
mesencephalon (midbrain)
part of the brain stem that contains the cerebral aqueduct
mesencephalon (midbrain)
structures that connect the cerebellum to the brain stem and contain tracts
cerebellar peduncles
major part of the brain that contains the reticular formation
brain stem
where the reticular activating center is located in the brain stem
mesencephalon (midbrain)
neurotransmitters found in the reticular activating center
serotonin, norepinephrine
the vital center located in the pons
respiratory
location in the brain stem where the vasomotor center is found
medulla oblongata
location in the brain stem where the center for sneezing is found
medulla oblongata
sensory cranial nerve responsible for hearing
VIII, vestibulocochlear
motor cranial nerve that supplies the lateral rectus muscle of the eye
VI, abducens
cranial nerve that allows you to elevate your shoulders
XI, accessory
cranial nerve that innervates the masseter muscle
trigeminal
cranial nerve that supplies most of the extrinsic eye muscles
oculomotor
cranial nerve that innervates the constrictor pupillae muscle
oculomotor
cranial nerve that innervates the lacrimal gland
VII, facial
cranial nerve that can slow down heart rate
X, vagus
cranial nerve that increases the motility of the stomach
X, vagus
cranial nerve carries impulses for the pain of a cold sore in your mouth
trigeminal
cranial nerve that allows you to wiggle your tongue back and forth
XII, hypoglossal
the superior sagittal sinus is actually this type of blood vessel
vein
shape of the cells found in the precentral gyrus
pyramidal
the part of the brain that initiates voluntary motor impulses
precentral gyrus
these cranial nerves reach the brain through the cribriform plate
I, olfactory
two major cranial nerves involved in the coordination of muscles for swallowing
glossopharyngeal and vagus