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16 Cards in this Set
- Front
- Back
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List the function of the Brainstem |
The Brainstem connects the spinal cord to the cerebrum and consists of the medulla oblongata, pons and midbrain, with the reticular formation scattered throughout those 3 regions and is the location of cranial nerve nuclei. |
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List the function of the Medulla Oblongata |
The Medulla Oblongata is the pathway for ascending (sensory) and descending (motor) nerve tracts. Center for relefexes including heart rate, breathing, swallowing and vomiting. Motor tracts cross over here, left to right and right to left. |
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List the function of the Pons |
The Pons contains ascending (sensory) and descending (motor) nerve tracts. Relays information between cerebrum and cerebellum. Site fo reflex centers, nuclei for respiration. |
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List the function of the Midbrain |
The Midbrain (cerebral penduncle) bundle of axons, contains the substantia nigra, ascending (sensory) and descending (motor) nerve tracts. Includes 4 tracts
Serves as visual reflex center; part of the auditory pathway. |
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What is the name for the 4 tracts located in the midbrain? |
Corpora quadrigemina |
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What are the 4 tracts in the corpora quadrigemina? |
2 superior tracts (visual reflexes) 2 interior tracts (auditory reflexes) |
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List the function of the Reticular formation |
The Reticular formation is scattered throughout the brainstem. Controls motor control, pain perception, rhythmic contractions and the sleep-wake cycle. Neurons responsible for your sense of awareness. |
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List the function for the RAS |
The RAS (reticular activating system) is the sensort part responses to almost any sensation except for smell. |
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List the function of the Cerebellum |
The Cerebellum controls muscle movement and tone; governs balance, regulates extent of intentional movement, involved in learning motor skills. Major relay station to the cerebrum. Makes lots of decisions. Communicates with other regions of the CNS through 3 large tracts called the cerebellar penduncles. The superior, middle and inferior penduncles. The cerebellum has a gray cortex and the white matter is the arbor vitae. |
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List the function of the gray cortex located in the cerebellum |
The gray cortex is involved in the planning and timing of movements and cognitive functions. The cerebellar cortex contains more neurons than the entire cerebral cortex (located in the cerebrum) |
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List the function of the arbor vitae located in the cerebellum |
The Arbor Vitae brings sensory and motor information to and from the cerebellum. |
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List the function of the Diancephalon |
The Diancephalon connects the brainstem to the cerebrum. Has many relay and homeostatic functions. Includes the thalamus, epithalamus, and hypothalamus. |
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List the function of the Thalamus |
The Thalamus is like a cell tower for incoming sensory information in which it is the major sensory relay center. Influences mood and movement. Transmits signals to the cerebrum. Regulates and directs incoming action potentials. |
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List the function of the Epithalamus |
The Epithalamus (really the pineal gland) makes the hormone melatonin (sleep aid, controls sleep cycles, producing more melatonin at night and less during the day) Contains nuclei responding to olfactory stimulation. |
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List the function of the Hypothalamus |
The Hypothalamus (blood taster) is the center for maintaining homeostasis. It constantly regulates blood, the pituitary glands secretion of hormones, influences functions (including endocrine functions) as metabolism, reproduction, responds to stressful stimuli and urine production. |
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List the function of the Optic Chiasm |
The Optic Chiasm is an X shaped structure, which is the crossing of optic nerves, and is crucial for vision. |
