On these “Gold Standard Step 1 Facts” pages you will find Free:
- USMLE Audio Review files from our “Gold Standard USMLE Reviews”
- Transcriptions of those files
- And videos (as they become available)
The idea is that you can review for the USMLE online by:
- Listening to the Audio
- Following along with the transcription
- Or by watching the video (if available)
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Let’s start our USMLE Review with Anatomy from the Gold Standard USMLE Step 1 Audio Review program.
Play USMLE Audio MP3 26 04 Hypothalamus (2_6) Below
Begin 26 04 Hypothalamus (2_6) Transcription
The lateral hypothalamic area contains two major nuclei. Student doctor, what are these major lateral hypothalamic nuclei?
- The lateral preoptic nucleus and the lateral hypothalamic nucleus.
Student doctor, please pause if you wish and describe the function of the lateral hypothalamic nucleus. The lateral hypothalamic nucleus, also referred to as the feeding center, is involved in the control of appetite. When stimulated it induces appetite.
Student doctor, what would be the immediate result and the long term result of a lesion to the lateral hypothalamic nucleus?
- A lesion to the lateral hypothalamic nucleus will result immediately in anorexia, that is loss of appetite, and in the long run, starvation.
The medial hypothalamic area is subdivided into four regions. Student doctor, what are the four regions in the medial hypothalamic area?
- First, the preoptic region. Second, the supraoptic region. Third, the tuberal region, and fourth, the mammillary region.
Let’s repeat that. Student doctor, please pause if you wish, and name all four regions in the medial hypothalamic area. The preoptic region, the supraoptic region, the tuberal region, and the mammillary region.
What are the nuclei called that are in the preoptic region of the medial hypothalamic area?
- Simply these are called the medial preoptic nuclei.
Now these medial preoptic nuclei in the preoptic region of the medial hypothalamic area regulate the release of what hormones from what structures?
- The preoptic region contains the medial preoptic nuclei and these regulate the release of gonadotropic hormones from the adenohypophysis.
And while we’re here, what nuclei having to do with sexuality, is also contained in the preoptic region?
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