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DEVELOPMENT OF THE AUDITORY THALAMUS IN THE FERRET

HOWARD, JENNIFER DIXON
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1022254330

Abstract Details

2002, MA, University of Cincinnati, Allied Health Sciences : Communication Sciences and Disorders.
Objective: Few studies have documented the development of the auditory thalamus. No studies have documented this development in the ferret. The purpose of this study was to document the development of cytoarchitectural structures of the ferret medial geniculate body (MGB). Methods: The MGB of 3 ferrets ages postnatal day 32 (P32), P60, and P77 were serially sectioned using a vibratome. The serial sections were dehydrated, stained using Cresyl Violet, coverslipped, and imaged using Kodak digital science microscopy documentation system (MDS100) connected to an Olympus B50 microscope. Results: The three subjects, P32, P60, and P77, demonstrate the changes that occur in the ferret thalamus from P32 to adult-like P77. The major MGB subdivisions were present in all three animals. However, clear dendritic staining was only found in the youngest ferret P32. Cytoarchitectural structures were found to be similar to adulthood especially in ferret P77. Discussion: Just as in the previous study of MGB development in the rat by Clerici and Coleman (1998), this study reveals that dendritic staining for Nissl does occur in younger animals and only somata stain for Nissl in adult animals. The structures of the auditory thalamus develop similarly to that of the rat. All of the major structures were identified by age P32 in the ferret. Continued growth of the MGB was observed through P77. This study provides information on the development of the ferret auditory thalamus. Due to the fact that the ferret is a useful animal model for studying development of the auditory system, it is important to document the development of the MGB. This information can be used for comparisons in future studies of the ferret auditory system.
Dr. Susan Stanton (Advisor)
39 p.
Biology, Anatomy
medial geniculate body; ferret; auditory; thalamus; MGB

Recommended Citations

Citations

  • HOWARD, J. D. (2002). DEVELOPMENT OF THE AUDITORY THALAMUS IN THE FERRET [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1022254330

    APA Style (7th edition)

  • HOWARD, JENNIFER. DEVELOPMENT OF THE AUDITORY THALAMUS IN THE FERRET. 2002. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1022254330.

    MLA Style (8th edition)

  • HOWARD, JENNIFER. "DEVELOPMENT OF THE AUDITORY THALAMUS IN THE FERRET." Master's thesis, University of Cincinnati, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1022254330

    Chicago Manual of Style (17th edition)

ucin1022254330
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© 2002, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.