45 Questions
Where is the hypothalamus located in the brain?
At the center of the limbic system
What serves as a conduit between the neurosecretory cells of the hypothalamus and distant sites of the brain?
Cerebrospinal fluid (CSF)
What is the origin of the Medial Forebrain Bundle (MFB)?
Rhino Cephalic Regions
Where does the Medial Forebrain Bundle (MFB) terminate?
All of the above
What is the name of the component of the fornix system that connects the hippocampal formation and dentate gyrus to the diencephalon and related structures?
Hippocampal Hypothalamic Fibers (HHF)
Where does the Hippocampal Hypothalamic Fibers (HHF) originate?
Hippocampus
Where do the Hippocampal Hypothalamic Fibers (HHF) terminate?
Mammillary bodies
What is the name of the system that the hippocampal formation is a part of?
Limbic system
What is the function of the CSF besides serving as a conduit?
Not specified in the text
Which part of the brain receives signals from the Mamillothalamic Tract?
Anterior Thalamic Nucleus
What is the primary function of the hypothalamic nuclei?
To maintain physiological variables within narrow limits
What is the function of the Dorsal Longitudinal Fasciculus?
Connecting the hypothalamus with the brainstem reticular formation
Which nucleus is responsible for temperature regulation?
Medial preoptic nucleus
Which structure is part of the limbic system aside from being part of the hypothalamus?
Mamillary body
What is the function of osmoreceptor neurons in the lamina terminalis?
To sense changes in osmolality
What is the role of the ventromedial tuberal hypothalamus?
To serve as a satiety center
What is the significance of the Efferent connections from the hypothalamus?
They represent the neuronal pathways by which the hypothalamus carries out functions
What is the effect of bilateral lesions in the ventromedial tuberal hypothalamus?
Overeating and obesity
Which pathway carries axons to the spinal cord where they influence autonomic preganglionic neurons?
Dorsal Longitudinal Fasciculus
Which hormone is secreted by the stomach and stimulates feeding behavior?
Ghrelin
What is the origin of the Mamillothalamic Tract?
Mamillary body
Which structure receives reciprocal connections from the Anterior Thalamic Nucleus?
Cingulate Gyrus
What is the opposite effect of Leptin compared to Ghrelin?
Inhibition of feeding behavior
What is the termination of the Mamillotegmental Tract?
Cells of the Reticular Formation
What is the result of abnormalities in both Ghrelin and Leptin signals?
Obesity
What is the significance of the Efferent connections from the hypothalamus in terms of controlling the autonomic nervous system?
They control the autonomic nervous system and peripheral nervous system
What is the mnemonic for remembering the locations of the satiety and feeding centers?
VMT - Vusog Me
What is a characteristic of the hippocampus in terms of neurotransmitters?
Uses Glutamate and GABA
What is the shape of the hippocampus in coronal section?
Seahorse
What is the term for the feet-like expansion of the hippocampus?
Pes hippocampus
What is the structure that converges medially to form a bundle called fimbria?
Nerve fibers originating from the hippocampus
What is the superior portion of the parahippocampal gyrus?
Subiculum
What is the function of the hippocampus in terms of sensory information?
Processing visual and auditory information
What is the structure that the hippocampus is located on?
Floor of the lateral ventricle
What is the posterior termination of the hippocampus?
Beneath the splenium of the corpus callosum
What covers the convex ventricular surface of the hippocampus?
Ependyma
What is the destination of the Mamillothalamic tract?
Anterior Nucleus of the thalamus
What is the role of the cingulate gyrus in the Papez Circuit?
It is the basis for experiencing emotions
What is the origin of the descending fibers in the Hypothalamus?
Preoptic, anterior, posterior, and lateral nuclei of the thalamus
What is the function of the Amygdala in the Papez Circuit?
It is responsible for emotional experiences
What is the pathway of fibers from the mamillary body to the anterior nucleus of the thalamus?
Mamillothalamic tract
What is the destination of the fibers going to the cingulate gyrus?
Hypothalamus
What is the role of the Hippocampus in the Papez Circuit?
It is responsible for learning and memory
What is the pathway of fibers from the hypothalamus to the brainstem and spinal cord?
Descending fibers
What is the name of the major loop circuit of the limbic system?
Papez Circuit
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