Diencephalon S2M1

Card Set Information

Author:
lancesadams
ID:
86165
Filename:
Diencephalon S2M1
Updated:
2011-08-11 09:52:28
Tags:
Ross S2M1
Folders:

Description:
Neuro
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user lancesadams on FreezingBlue Flashcards. What would you like to do?


  1. What is the purpose of the Habenular nuclei
    It is invloved in limbic system relays
  2. Where is the Habenular nuclei located
    Just anterior to the pineal gland and posterior to the thalamus
  3. What does the pineal gland contain
    • Pinealocytes
    • Glial cells
    • Many vessels
  4. What is a circumventricular organ and what is an example of one in the diencephalon
    • An organ that lacks a Blood Brain Barrier
    • Pineal gland
  5. Melatonin is found in high and low amounts in the body in what conditions
    • High during darkness
    • Low during light
  6. What chain of events triggers the pineal gland to release melatonin
    • Retina is activated by light
    • Suprachiasmatic nucleus (hypothalamus)
    • Reticular formation
    • Intermediolateral neurons of spinal cord
    • Superior cervical ganglion
    • Pineal gland
  7. The subthalamus consists of what nuclei
    • Subthalamic nuclei
    • Zona Incerta
    • Rostral Extensions of Red Nucleus and Substantia Nigra
  8. What is the function of the Subthalamic Nucleus (STN)
    It is part of the Basal Ganglia circuitry
  9. What is the function of the substantia nigra
    • Involved in reward, addiction, and movement
    • It contains two parts that project to the striatum and thalamus (pars compacta and pars reticularis)
  10. What two regions of the Thalamus contain only one nucleus
    • Anterior region (Anterior Nucleus)
    • Medial region (Dorsomedial Nucleus)
  11. Lateral region of the Thalamus has many nuclei broken down into what groups
    Ventral and a Dorsal group
  12. Thalamic nuclei can be classified as either specific or nonspecific how
    Specific - receives input from a single sensory or motor system (output is to a single cortical area)

    Nonspecific - Receives input from multiple regions (output is usually multiple areas of association cortex)
  13. What is the major input and output of the Lateral Geniculate Nucleus (LGN) of the Thalamus
    • Optic tract (input)
    • Primary visual cortex (output) area 17
  14. What is the major output and input of the Medial Geniculate Nucleus (MGN) of the Thalamus
    • Brachium of inferior colliculus (input)
    • Primary Auditory cortex (output) areas 41 and 42
  15. What is the major input and output of the Ventral Posterolateral Nucleus (VPL) of the Thalamus
    • Medial Lemniscus and Spinothalamic tract (input)
    • Primary Somatosensory cortex (output) areas 1, 2, 3
    • Pain/Temp/Touch/Proprioception
  16. What is the major input and output of the Ventral Posteromedial (VPM) Nucleus of the Thalamus
    • Trigeminalthalamic tracts and Solitary Nucleus (input)
    • Primary somatosensory cortex (output) areas 1, 2, 3
    • Pain/Temp/Touch/Proprioception and Taste
  17. What is the main input and output of the Ventral Lateral (VL) Nucleus of the Thalamus
    • Dentate Nucleus, Substantia Nigra, Globus Pallidus (input)
    • Primary Motor Cortex area 4 and Premotor cortex area 6 (output)
    • Movement
    • "Toothless Blacks are all VL" all = Pallidus
  18. What are the major inputs and outputs of the Ventral Anterior (VA) Nucleus of the Thalamus
    • Globus Pallidus, Substantia Nigra (input)
    • Primary Motor Cortex area 4 and Premotor cortex area 6 (output)
    • Movement
    • "Black people in VA can move like globe trotters"
  19. What are the major inputs and outputs of the Anterior Nucleus of the Thalamus
    • Hippocampus (forinx), and Mammillothalmic tract (input)
    • Cingulate Gyrus (output)
    • Emotion and Memory
  20. What are the major inputs and outputs of the Lateral Dorsal (LD) Nucleus of the Thalamus
    • Hippocampus (input)
    • Cingulate Gyrus (output)

    Emotion and Memory
  21. The thalamus is most frequently damaged by vascular occlusions from what artery
    • Posterior Cerebral artery
    • Posterior Choroidal branches
  22. Thalamic Syndrome
    Thalamic pain combined with hemianesthesia and sensory ataxia. May be accompanied with paralysis
  23. What kind of functions does the Hypothalamus control
    • Sympathetics to Homeostasis, Endocrine, ANS, and Limbic systems
    • HEAL
  24. The Paraventricular and Supraoptic Nuclei in the Hypothalamus have what function
    • Regulate water balance
    • Produce ADH and oxytocin
    • Destruction of it causes Diabetes
  25. What is the function of the Anterior Nucleus of the Hypothalamus
    Thermal Regulation
  26. What is the function of the Preoptic Nucleus of the Hypothalamus
    • Contains Sexually dimorphic nuclei
    • Regulates the release of gonadotropic hormones
    • Center of male typical behavior
    • "Looking (optic) at a sexy person effects this"
  27. What is the function of the Dorsomedial Nucleus of the Hypothalamus
    • Stimulation results in obesity and savage behavior
    • Some Neurons produce Orexin for wakefulness, narcoleptics lack this function
    • "People who lounge on there dorsum have these characteristics"
  28. What is the function of the Posterior Nucleus of the Hypothalamus
    • Thermal regulation
    • Stimulation causes heat conservation and vasoconstriction
  29. What is the function of the Lateral Nucleus of the Hypothalamus
    • Stimulation induces eating
    • Destruction results in starvation
    • Regulates drive states for pleasure and reward
    • "People that are large laterally"
  30. What is the function of the Ventromedial Nucleus of the Hypothalamus
    • Sexually Dimorphic
    • Satiety center
    • Destruction results in obesity and savage behavior
    • "What happens when you vent?"
  31. What is the function of the Arcuate Nucleus
    • Release Dopamine to inhibit release of prolactin from pituitary
    • Effects hunger
    • "Noahs arc was dope!"
  32. What is the purpose if the Mammilary bodies
    • Invloved in learning and memory
    • Destruction produces disorders in memory, emotion, and drive
    • "I will never forget those mammillary glands!"
  33. What is the pathway of the Anterior Area of the Hypothalamus to reach the Pineal gland
    • Retina
    • Suprachiasmatic Nucleus
    • Reticular Formation
    • Intermediolateral neurons of spinal cord
    • Superior cervical ganglion
    • Pineal gland

What would you like to do?

Home > Flashcards > Print Preview