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| Unmyelinated brain and spinal tissue;contains interneurons |
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| Myelinated brain and spinal tissue;carries impulses to and from the brain |
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| In the PNS, it contains the sensory and motor neurons that transmits messages to and from the spinal cord |
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| Found in the gray matter of the spinal cord, it contains CSF |
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| The tough, protective covering of the brain and spinal cord |
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| The third meningeal layer that is very tightly bound to the surface of the brain and spinal cord |
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| Separates the right and left hemispheres |
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| Separates the right and left cerebral hemispheres from the cerebellum |
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| The grooves of brain tissue that greatly increase the surface area of the cortex |
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| The folds of tissue found on the surface of the brain |
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| Cranial nerve II; it transmits visual messages to the brain |
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| It is the crossing point of the optic nerves |
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| Lobe of the brain that contains the visual cortex |
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| Lobe of the brain that contains the somatic sensory cortex (pain, heat, touch) |
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| Lobe of the brain that is important in the control of voluntary motor functions (motor cortex), motivation, aggression, mood, and olfactory reception |
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| Lobes of the brain that contains the auditory cortex and olfactory cortex |
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| A broad band of nerve tracts at the base of the longitudinal fissure that allows the right and left hemispheres to communicate sensory information |
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| Contains structures like the cingulated gyrus and hippocampus; governs emotional aspects of behavior, memory, rage, pleasure, and pain as related to survival |
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| The “little brain” structure that provides precise timing for skeletal muscle activity; controls balance; maintains muscle tone |
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| Four mounds of the midbrain; relay centers for auditory nerve pathways in the CNS and controls visual reflexes |
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| Largest part of the diencephalon; relays sensory input from the spinal cord and brain stem to the cerebral cortex; also, influences mood and registers an uncomfortable perception of pain |
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| Endocrine gland of the epithalamus; it influences the onset of puberty and seasonal breeding in animals; produces melatonin (controls sleep cycles) |
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| Inferior part of the diencephalon; helps maintain homeostasis: controls body temperature, hunger, thirst, feelings of sexual pleasure, rage, and fear |
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| Visible swellings of the hypothalamus that are involved in emotional responses to odors and in memory |
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| Endocrine gland controlled by the hypothalamus that secretes hormones (like FSH, LH, and GH |
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| Stalk that extends from the hypothalamus to the pituitary gland |
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| In the PNS, it contains the sensory and/or motor neurons that transmits messages to and from the brain |
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| Serves as the functional bridge between the cerebrum and cerebellum; it controls breathing, swallowing, balance, chewing, and salivation |
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| Brain stem structure that regulates vital visceral activities, such as rate and force of heartbeat; breathing, swallowing, coughing, sneezing |
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| Thin, wispy meningeal layer that helps CSF enter the blood stream |
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| Large, CSF-filled cavity of the right and left hemispheres |
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| Specialized structures made of ependymal cells, which are located in the ventricles; produces CSF |
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| Cerebrospinal Fluid (CSF) |
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| Fluid that bathes the brain and spinal cord and provides a protective cushion around the CNS |
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| Located at the base of the cerebellum, this CSF-filled cavity is connected to the third ventricle by the cerebral aqueduct Contains CSF |
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| Hairs of the eyelids that protect the eye from dust and debris |
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| Six skeletal muscles that help voluntarily move the eye |
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| White fibrous connective tissue of the eye; it maintains the shape of the eye, protects internal structures, and provides attachment sites for eye muscles |
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| Transparent part of the outer tunic of the eye that bends the entering light |
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| Opening in the iris that allows light to pass through the eye |
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| Pigmented, smooth muscle of the eye that regulates the amount of light entering the eye; it constricts and dilates the pupil |
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| Flexible, biconvex disk that focuses light in the eye |
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| Innermost layer of the eye; it contains the photoreceptors called rods and cones, which responds to light |
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| Called the blind spot, this eye structure has no photoreceptors and does not respond to light |
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| Found in nocturnal animals, this brightly colored, iridescent tissue bounces light back to the retina |
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| Watery substance at the anterior portion of the eye that provides nutrients to the inner surface of the eye |
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| Jelly-like substance of the eye that helps maintain pressure within the eye and holds the lens and retina in place |
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| What cortex is in the Parietal Lobe? |
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| Wha cortex is in the Frontal Lobe? |
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| What cortex is in the Temporal Lobe? |
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| What cortex is in the Occipital Lobe? |
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