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Anatomy > Brain > Flashcards

Flashcards in Brain Deck (37):
1

Dura mater

Tough outer layer of the meninges

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Arachnoid mater

Delicate weblike middle layer of the meninges

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Pia mater

Inner layer of meninges that encloses brain and spinal chord

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Cerebrospinal fluid

Fluid in ventricles of brain, the subarachnoid space of the meninges, and central canal of spinal cord

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Choroid plexus

Mass of specialized capillaries that secretes cerebrospinal fluid into ventricle of the brain

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Ventricles

Cavities such as brain ventricles filled with cerebrospinal fluid or heart ventricles that contain blood

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Cerebrum

Part of brain in upper part of cranial cavity that provides higher mental functions

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Cerebral hemisphere

One of the large paired structures that constitute the cerebrum

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Cerebellum

Part of brain that coordinates skeletal muscle movement

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Brain stem

Portion of brain that includes midbrain, pons, medulla oblongata

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Corpus callosum

Mass of white matter in brain composes of nerve fibers connecting right and left cerebral hemispheres

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Gyrus

Elevation on brains surface caused by infolding

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Sulcus

Shallow groove such as between convolutions on surface of brain

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Cerebral cortex

outer layer of cerebrum

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Broca's area

Region of frontal love that coordinates complex muscular actions of mouth, tongue, larynx, making speech possible

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Hippocampus

Part of cerebral cortex where memories form

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Basal nuclei

Mass of gray matter deep within cerebral hemisphere of brain

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Diencephalon

Part of brain in religion of third ventricle that includes thalamus and hypothalamus

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Thalamus

Mass of gray matter at base of cerebrum in wall of third ventricle

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Hypothalamus

Part of brain located below the thalamus and forming floor of third ventricle

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Limbic system

Connected structures in brain that produce emotional feelings

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Reticular formation

Complex network of nerve fibers in brainstem that arouses the cerebrum

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Midbrain

Small religion of brainstem between diencephalon and the pons

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Pons

Part of brainstem above medulla oblongata and below midbrain

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Medulla oblongata

Part of brainstem between pons and spinal cord

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Reflex

Rapid automatic response to stimulus

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Reflex arc

Nerve pathway consisting of sensory neuron, interneuron, and motor neuron that forms structural and functional bases for a reflex

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Longitudinal fissure

Separates right and left cerebral hemispheres

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Wernickes area

Sensory speech area in parietal lobe near temporal lobe
Receives and relays input from both visual cortex and auditory cortex and is important for understanding written and spoken language

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Frontal lobe

Anterior portion of cerebral hemisphere

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Central sulcus

Passes out from longitudinal fissure at right angle

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Lateral sulcus

exits undersurface of brain along its sides

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Parietal lobe

Posterior to frontal lobe and is separated from it by central sulcus

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Temporal lobe

Lies inferior to frontal lobe and parietal lobes and is separated from them by lateral sulcus

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Occipital lobe

Forms posterior portion of each cerebral hemisphere and is separated from cerebellum by shelflike extensions of dura mater called tentorium cerebelli

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amygdala

Area of temporal lobe
Assigns value to memory

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Meninges

Membrane that covers the brain and spinal chord