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Limbic System
Limbic System- Neuro Test 2
| Question | Answer |
|---|---|
| The limbic system includes nuclei & tracts along the border between the ________ & _________. | Cerebrum & Diencephalon |
| The limbic system includes portions of these 3 structures: | 1. Cerebrum 2. Diencephalon 3. Mesencephalon |
| Functions of the limbic system: | 1. Emotional states 2. Linking conscious & intellectual functions of the CEREBRAL CORTEX ---> to the unconscious & autonomic functions of the BRAIN STEM. 3. Memory storage & retrieval |
| These cortexes ALLOW you to perform tasks | Sensory, motor and association areas of the cerebral cortex-- THE LIMBIC SYSTEM MAKES YOU WANT TO DO THESE TASKS |
| Where are AMYGDALOID BODIES located? | At the tail end of the caudate nucleus --It is a cerebral contribution to the limbic system |
| The amygdaloid body appears to act as an INTERFACE between what systems? | 1. The Limbic System 2. The cerebrum 3. The Various sensory systems |
| Amygdaloid bodies play a role in: - _____________________ - Control of _________________ - Linking __________ with ____________. | - Regulation of heart rate -Control of flight/fight response - Links emotions to specific memories |
| What lobe consists of GYRI and underlying structures adjacent to the diencephalon? | The Limbic Lobe |
| The Gyri of the limbic lobe curve along the _________________ and onto the __________ surface of ________________. | 1. The Corpus Callosum 2. Medial surface of the Temporal Lobe |
| The cingulate gyrus sits ___________ to what? | Sits superior to the corpus callosum. |
| What lies adjacent to the PARAHIPPOCAMPAL GYRUS? | The Dentate Gyrus |
| 2 structures conceal the hippocampus. Name them. | 1. Parahippocampal Gyrus 2. Dentate Gyrus |
| The hippocampus is a nucleus __________ to the floor of _________________. | Inferior to the floor of the left ventricle |
| The parahippocampal gyrus + the Dentate gyrus conceal what structure? | The hippocampus |
| The hippocampus is important for what function? | LEARNING--> Especially new long term memories |
| A tract of white matter that connects the hippocampus with the hypothalamus | The Fornix |
| The fornix curves _______ & _______ with many of its fibers ending in _____________ _________. | 1. Medially & inferiorly 2. Ending in Mamillary bodies |
| The fornix connects what 2 structures? | 1. Hippocampus 2. Hypothalamus |
| The mamillary bodies process what kind of information? Give an example. | Sensory information-- including olfactory sensations |
| Mamillary bodies also contain what kind of nuclei? These control _______ ______ associated with ________. Examples = | - Motor Nuclei - Control reflex movements - Eating Ex: Chewing, licking, swallowing |
| The Anterior Nucleus of the thalamus is associated with _______ ______. | Hypothalamic centers |
| These hypothalamic centers are responsible for what? | EMOTIONS--> Involving Rage, Pain, Fear, sexual arousal, Pleasure. |
| Stimulation of the hypothalamus in association with the limbic system can also be caused by ____________________. | Reticular Formation |
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