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Ch 14 Nervous System


thin, middle layer of the meninges that contains a spider-web like network of fibers that go into the subarachnoid space arachnoid
area in the temporal lobe of the cerebrum that analyzes sensory information from receptors in the cochlea to give the sense of hearing auditory cortex
largest organ of the NS. It is part of the CNS and is located in the cranial cavity brain
most inferior part of the brain that joins with the spinal cord. It is composed of the midbrain, pons, and medulla oblongata brainstem
small rounded structure that is the most posterior part of the brain. It monitors muscle tone and position and coordinates new muscle movement cerebellum
the outermost surface of the cerebrum. It consists of gray mater that contains the cell bodies of the neurons cerebral cortex
clear, colorless fluid that circulates through the subarachnoid space, around the brain, through the ventricles and spinal cavity. Cushions and protects the brain, contains glucose and other nutrients. Produced by the ependymal cells cerebrospinal fluid
largest and most visible part of the brain. Its surface contains gyri and sulci, and is divided into two hemispheres cerebrum
connecting band of neurons between the two hemispheres of the cerebrum that allows them to communicate and coordinate their activities corpus callosum
hollow cavity inside the cranium that contains the brain cranial cavity
rounded dome of bone at the top of the skull cranium
tough, outermost layer of the meninges. Lies just beneath the bones of the cranium and within the foramen of each vertebra dura mater
deep division that runs in an anterior-to-posterior direction through the cerebrum and divides it into right and left hemispheres fissure
lobe of the cerebrum that predicts the future events and consequences. exerts conscious control over the skeletal muscle frontal lobe
area in the parietal lobe of the cerebrum that analyzes sensory information from taste receptors in the tongue to give the sense of taste gustatory cortex
one of the many large elevated folds of brain tissue on the surface of the cerebrum with smaller folds in the cerebellum. in between each gyrus is a sulcus (groove) gyrus
one half of the cerebrum. the right hemisphere recognizes patterns and 3 dimensional structures and emotions of words. the left hemisphere deals with math and logical reasoning , analysis, sights,sounds,sensations the left h. is active in reing.wring.spng hemisphere
area in the center of the brain just below the thalamus that coordinates activities of the pons and medulla o. Controls heart rate, BP,Resp,Temp,hunger and thirst, circadian rythm. Produces hormones it supports the pituitary gland of the endocrine system hypothalamus
large area of the cerebrum. These are named for the bone of the cranium that is above it. Frontal, parietal, temporal and occipital lobe
most inferior part of the brainstem that joins to the spinal cord. It relays nerve impulses from the cerebrum to the cerebellum. It contains the respiratory centers. Cranial nerves IX through XII originate here medulla oblongata
three separate membranes that envelope and protect the entire brain and spinal cord. These include the dura mater, arachnoid, and pia mater meninges
most superior part of the brainstem. it keeps the mind conscious, coordinates immediate responses, and maintains muscle tone and body position. It contains the substancia nigra. Cranial nerves III and IV originate here midbrain
lobe of the cerebrum that receives and analyzes sensory information from the eyes. Contains the visual cortex for the sense of sight occipital lobe
area in the temporal lobe of the cerebrum that analyzes sensory information from receptors in the nose to give the sense of smell olfactory cortex
lobe of the cerebrum that receives and analyzes sensory information about temperature, touch, pressure, vibration, and pain from the skin and internal organs. Contains the gustatory cortex for the sense of taste parietal lobe
thin, delicate, innermost layer of the meninges. It covers the surface of the brain and contains many small blood vessels pia mater
middle area of the brainstem that relays nerve impulses from the spinal cord to the midbrain, hypothalamus, thalamus, and cerebrum. Cranial nerves V through VII originate here pons
area of the parietal lobe of the cerebrum that analyzes sensory information (touch, temperature, vibration, and pain) from receptors in the skin, joints and muscles somatosensory area
space beneath the arachnoid layer of the meninges. It is filled with cerebrospinal fluid subarachnoid space
a darkly pigmented area in the midbrain of the brainstem that produces the neurotransmitter dopamine substantia nigra
groove between two gyri on the surface of the cerebrum and cerebellum sulcus
lobe of the cerebrum that analyzes sensory information. It contains the auditory cortex for the sense of hearing and the olfactory cortex for the sense of smell temporal lobe
area in the center of the brain that acts as a relay station. It takes sensory nerve impulses from the body and sends them to areas in the cerebrum thalamus
1 of 4 hollow chambers in the brain that contain CSF. 2 lateral ventricles are in the right and left hemispheres of the cerebrum. the small 3rd ventr. is between the 2 lobes of the thalamus. the long, narrow 4th ventr, connects to the spinal cavity ventricle
area in the occipital lobe of the cerebrum that analyzes sensory information from receptors in the retina of each eye to give the sense of sight visual cortex
Created by: ricrom81



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