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Neuroanatomy
Thalamus and surrounding structures (wk 6)
Question | Answer |
---|---|
This part of the brain receives sensory information, mediates motor information, and is involved in autonomic maintenance of consciousness. | Thalamus |
This part of the thalamus is affected in Korsakoff's psychosis | Anterior Nucleus |
This part of the thalamus receives limbic system information, and functions in memory and emotions. | Anterior Nucleus |
This part of the thalamus receives information from the basal ganglia, amygdala, midbrain, and some spinothalamic fibers, and is responsible for our emotional response to pain. | Medial Group of Nuclei |
This part of the thalamus projects to the prefrontal lobe and functions in memory and behavior. | Medial Group of Nuclei |
This part of the thalamus receives information from the basal ganglia and dentate nucleus | Ventral Anterior & Ventral Lateral |
Projects to the motor & premotor cortices, and functions in motor integration and maintenance of consciousness. | Ventral Anterior & Ventral Lateral |
Ablation of this part of the thalamus has been shown to ameliorate Parkinsonian symptoms. | Ventral Anterior & Ventral Lateral |
This portion of the thalamus is responsible for all somatosensation except olfaction. | Ventral Posterior Nucleus |
The Ventral Posterior MEDIAL Nucleus integrates sensory information from this part of the body. | Head & face |
The Ventral Posterior LATERAL Nucleus integrates sensory information from this part of the body. | The body (except head & face) |
The Medial Genicualte Body projects to the ________ . | Auditory Cortex |
Lesions of the Medial Geniculate Body result in (Contralateral/ Ipsilateral) hearing loss. | Contralateral |
The Lateral Geniculate Body receives information from the ______. | Optic Tract |
The Lateral Geniculate Body projects to the ______. | Visual Cortex |
Lesions of this part of the thalamus result in visual loss. | Lateral Geniculate Body |
This structure includes mammillary bodies, the tuber cinereum, and optic chasm. | Hypothalamus |
The hypothalamus is connected to the ____ gland through the infundibulum and stalk of this gland. | Pituitary |
The ______ is part of the limbic system, controls autonomic responses, and is part of the endocrine system. | Hypothalamus |
This structure is responsible for the secretion of Oxytocin and ADH. | Hypothalamus |
This structure is responsible for temperature control. | Hypothalamus |
Emotion, fear, rage, aversion, pleasure, and reward are mediated by the____, ______, and _____. | Hypothalamus, Limbic System, Prefrontal Cortex. |
This structure, part of the hypothalamus, is responsible for the biological clock i.e. circadian rhythms. | Suprachiasmic Nucleus |
What function does the hypothalamus play in reproduction? | Secondary sexual characteristics, puberty, sexual behavior, gametogenesis. |
How does the hypothalamus control blood pressure and osmolarity? | Regulation of food and water intake (glucose sensitive satiety center and hunger and thirst center) |
This is the transition zone between the midbrain and the thalamus. | Subthalamus |
Lesions of this structure result in hemiballism (uncontrollable, violent torsional movements) | Subthalamus |
This nucleus is a functional constituent of the basal ganglia. | Subthalamic Nucleus |
This structure is composed of habenula, stria medullaris thalami, pineal gland, posterior commissure, & habenular commissure. | Epithalamus |
The habenula functions in ______ reflexes | Olfactory |
The pineal gland secretes _____ and _____. | Antigonadotropin, Melatonin. |
Pineal growth results in _____. | Delayed puberty |
Pineal destruction results in _______. | Precocious puberty. |
The pineal gland is part of the ______. | Epithalamus |
The pineal gland secretes antigonadotropin, which inhibits the gonadotropin secreted by the ______. | Anterior pituitary |