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Ch. 14 The Brain and Cranial Nerves
Martini - Fundamentals of Anatomy & Physiology 11th Edition
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoMartini, Nath, Bartholomew 11th EditionCh. 14 The Brain and Cranial NervesProblema 23
Capitolo 14, Problema 23

Which structure in the brain is your A&P instructor referring to when talking about a nucleus that resembles a sea horse and that is important in the storage and retrieval of long-term memories? In which functional system of the brain is it located?

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Identify the brain structure described as resembling a sea horse and involved in the storage and retrieval of long-term memories. This description matches the hippocampus, a key part of the brain's limbic system.
Understand the role of the hippocampus: it is crucial for consolidating information from short-term memory to long-term memory and spatial navigation.
Recognize that the hippocampus is classified as a nucleus because it is a cluster of neuron cell bodies within the central nervous system.
Locate the hippocampus within the brain: it is situated in the medial temporal lobe, forming part of the limbic system.
Identify the functional system: the hippocampus is part of the limbic system, which is involved in emotion, memory, and motivation.

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Hippocampus

The hippocampus is a brain structure shaped like a sea horse, located in the medial temporal lobe. It plays a critical role in the formation, storage, and retrieval of long-term memories, especially declarative memories such as facts and events.
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3:35
Review of Relevant Brain Anatomy

Nucleus in the Brain

In neuroanatomy, a nucleus refers to a cluster of neuron cell bodies within the central nervous system. The hippocampus is considered a prominent nucleus involved in memory processing, distinguishing it from other brain regions by its unique shape and function.
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Nucleus

Limbic System

The limbic system is a functional brain system involved in emotion, motivation, and memory. The hippocampus is a key component of this system, contributing to the regulation and consolidation of long-term memories within this network.
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Complement System
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A cerebrovascular accident occurs when

(a) The reticular activating system fails to function

(b) The prefrontal lobe is damaged

(c) The blood supply to a portion of the brain is cut off

(d) A descending tract in the spinal cord is severed

(e) Brainstem nuclei hypersecrete dopamine

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What varied roles does the hypothalamus play in the body?

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What are the principal functional differences between the right and left cerebral hemispheres?

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If symptoms characteristic of Parkinson's disease appear, which part of the midbrain is inhibited from secreting a neurotransmitter? Which neurotransmitter is it?

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Stimulation of which part of the brain would produce sensations of hunger and thirst?

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Damage to the vestibular nucleus would lead to

(a) Loss of sight

(b) Loss of hearing

(c) Inability to sense pain

(d) Difficulty in maintaining balance

(e) Inability to swallow

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