Comparative anatomical study of the tegmentomammillary projections in some mammals: a horseradish peroxidase study

|May 23, 1984

Abstract:

Mammillary projections from each subnuclei of Gudden 's tegmental nuclei were investigated by retrograde transport of horseradish peroxidase (HRP) in the cat, rat, guinea pig, golden hamster and house shrew (Suncus murinus, Insectivora). The dorsal tegmental nucleus of Gudden (TD) is composed of the pars dorsalis (TDD) and the pars ventralis ( TDV ) in the cat, rat, guinea pig, and golden hamster, but the TD of the house shrew can not be divided. The ventral tegmental nucleus of Gudden (TV) is composed of the pars principalis (TVP) and the pars suprafascicularis ( TVS ) in the golden hamster and house shrew, but the TVS is not recognized in the cat, rat and guinea pig. The TDV projects to the lateral mammillary nucleus, and the TVP projects to the medial mammillary nucleus ipsilaterally in the cat, rat, guinea pig and golden hamster. The TVS of the golden hamster projects to the medial mammillary nucleus. The TVP and TVS of the house shrew project to the medial mammillary nucleus, and the TVS also to the lateral mammillary nucleus. In addition, the pars compacta of the nucleus centralis superior projects to the medial mammillary nucleus in the rat, guinea pig and golden hamster. However, the TDD sends no fibers to the mammillary nuclei in these 5 species of mammals.

Related Experiment Videos

Comparative anatomical study of the tegmentomammillary projections in some mammals: a horseradish peroxidase study

Related Concept Videos

Direct and indirect thalamic afferents arising from the vestibular nuclear complex of rats: medial and spinal vestibular nuclei.

Ultrastructural characterization of pharyngeal and esophageal motoneurons in the nucleus ambiguus of the rat.

Synaptic organization of afferent projections to the supramammillary nucleus of the rat.

Descending projections from the paraventricular hypothalamic nucleus to the spinal cord: anterograde tracing study in the rat.

Fine structure of the supramammillary nucleus of the rat: analysis of the ultrastructural character of dopaminergic neurons.

Neuroanatomical study of afferent projections to the supramammillary nucleus of the rat.

TRANQUIL attenuates autoimmune demyelination and suppresses neuroinflammatory signaling in experimental autoimmune encephalomyelitis.

Mast cells suppress glioblastoma progression via endoplasmic reticulum stress.

Higher signal diversity, network dysregulation, and increased well-being under DMT administration: An EEG study.

Neurogrit Gold Alleviates Motor, Behavioural, and oxidative stress deficits in the MPTP-induced Drosophila melanogaster model of Parkinson's disease.

Sometimes you look more when you know less: Goal dependent eye movements during language processing.

Ultrastructural remodeling of mitochondria-associated vesicular structures in the rat medial prefrontal cortex following Propionic acid exposure.

Seasonal variations in the polysomnographic sleep/wake cycle and activity/rest pattern in the dromedary camel (Camelus dromedarius).

Case Report: Distal tibial physeal fracture secondary to septic physitis and osteomyelitis in a Boxer puppy.

Radiation-Induced Alopecia in Dogs With Nasal Tumours: Coat Type Influences Development and Onset.

Ovarian leiomyoma with an epithelioid differentiation in a dog.

Single-cell sequencing reveals synovial fluid γδ T-cell expansion in equine experimental osteoarthritis.

Beyond venom and constriction: Bite performance and trophic ecology in the genus Drymarchon.

Related Experiment Videos

Comparative anatomical study of the tegmentomammillary projections in some mammals: a horseradish peroxidase study

Abstract:

Related Concept Videos

Related Articles