Nervous System Word Scramble
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Question | Answer |
The outermost covering of the brain, composed of tough fibrous connective tissue | Dura mater |
The innermost covering of the brain, delicate and vascular | Pia mater |
Structures that returncerbrospinal fluid to the venous blood in the dural sinuses | Arachnoid villi |
Middle meningeal layer, like a cobweb in structure | Arachnoid |
Its outer layer forns the periosteum of the skull | Dura mater |
The largest part of the human brain, paired | Cerebral hemespheres |
The other major subdivisions of the brain | Brainstem and Cerebellum |
The cavities found in the brain | Ventrioles |
Ventrioles contain________ | CSF |
An elevated ridge of cerebral cortex tissue | Gyrus |
The convolutions seen in the cerebrum are important because they increase the_________ | SA |
Gray matter is composed of____________ | Nerves/unmyelinated |
White matter is composed of___________, which provide for communication between different parts of the brain as well as with lower CNS centers. | Myelinated |
Site of regualtion of water balance and body temperature | Hypothalamus |
Contains reflex centers involved in regulation respiratory rhythm in conjunction with lower brain stem centers | Pons |
Important relay station for afferent fibers traveling to the sensory cortex for interpretation | Thalamus |
Contains autonomic centers, which regulate blood pressure and respiratory rhythm, as well as coughing and sneezing centers | Medulla oblongata |
Large fiber tract connection the cerebral hemispheres | Corpus callosum |
Connects the 3rd and 4th ventricles | Cerebral aquaduct |
Encloses the 3rd ventricle | Thalamus |
Forms the cerebrospinal fluid | Choroid plexus |
Midbrain area that is largely fiber tracts; bulges anteriorly | Cerebral peduncle |
Part of the limbic system; contains centers for many drives | Hypothalamus |
CSF is formed by capillary knots called___________ | Chrodoid plexasus |
Chrodoid plexasus hand into the_____________ of the brain | Ventricles |
CSF flows from the lateral ventricles to the 3rd ventricle and then through the__________ to the 4th ventricle | Cerbral aquaduct |
Some CSF continues down the______of the spinal cord | Central canal |
MOst CSF circulates in to______ by passing through 3 tiny openingsin the walls of the_________ | Subarachnoid; 4th ventricle |
CSF is formed and drained back into the venous blood at the same rate. If its drainage is blocked, a donditionn called______ occurs, which results in increased pressure on the brain. Usually in infants | Hydrocephalus |
Slight and transient brain injury | Concussion |
Traumatic injury that destroys brain tissue | Contusion |
Total nonresponsiveness to stimulation | Coma |
May cause medulla oblongata to be wedged into foramen lagnum by pressure of blood | Intracranial hemorrhage |
After head injury, retention of water by brain; compression of brain, herniation, lack of oxygen, swelling | Cerebral edema |
Results when a brain region is deprived of blood or exposed to prolonged ischemia | Cerebrovascular accident |
Progressive degeneration of the brain with abnormal protein deposits | Alzheimer's disease |
Autoimmune disorder with extensive demyelination | Multiple sclerosis |
A mini-stroke; fleeting symptoms of a CVA | Transient Ischemic attack (TIA) |
Thermoreceptors | Detect temperature; more cold than hot; in dermis |
Detect touch, pressure, vibration | Tactile receptors |
Detect pressure change in areas with gasses:walls of blood vessels, digestive organs, bladder, lungs | Baroreceptors |
Detect position of joints and muscles | Proprioceptors |
Gustatory Receptors | Synapse in medulla oblongata for memory; sense sweet, sour, bitter, salty, also umami and water; begin with 20,000 taste buds |
Olfactory Receptors | In olfactory cerebral cortx, hypothalamus, limbic system; for smell, mood, behavior |
Layers (tunics) of eye | Fibrous-outermost, sclera(vitreous gel white dense fibrous) and cornea(transparent for light entrance)Vascular-intermediate, iris(color)Neural-innermost where nerves are |
Outer layer of skin covering eye | Conjunctiva |
Corner of eye, lubricates and fights infection | Lacromal gland |
Peripheral photoreceptors, sensitive, black and white | Rods |
Red, blue, and green photoreceptor, only function in light, 2x as other | Cones |
Focusing too soon, farsighted | Myopia |
Focusing beyond normal point, nearsighted | Hyperopia |
Pain receptor, recognize potential tissue damage, usually reflex arcs | Nociceptors |
Pain receptor, different part of body senses pain for other part, tighteningie-panic attack, infection, heart attack | Referred pain |
Pain receptor, localized, quicklyie- leg asleep | Fast (prickling) pain |
Pain receptor, generalized slowie-heart burn | Slow (burning) pain |
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emily34834
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