منابع مشابه
Star-nosed moles
What are star-nosed moles? The star-nosed mole, Condylura cristata, is one of about 30 species of mole in the mammalian order Insectivora. Although they are rarely seen, they are relatively common in the wetlands of eastern North America and Canada. They weigh about 30–50 grams and have large clawed forelimbs for digging their extensive underground burrows. Like most other moles, they give birt...
متن کاملThe Star-Nosed Mole Reveals Clues to the Molecular Basis of Mammalian Touch
Little is known about the molecular mechanisms underlying mammalian touch transduction. To identify novel candidate transducers, we examined the molecular and cellular basis of touch in one of the most sensitive tactile organs in the animal kingdom, the star of the star-nosed mole. Our findings demonstrate that the trigeminal ganglia innervating the star are enriched in tactile-sensitive neuron...
متن کاملThe sense of touch in the star-nosed mole: from mechanoreceptors to the brain.
Star-nosed moles are somatosensory specialists that explore their environment with 22 appendages that ring their nostrils. The appendages are covered with sensory domes called Eimer's organs. Each organ is associated with a Merkel cell-neurite complex, a lamellated corpuscle, and a series of 5-10 free nerve endings that form a circle of terminal swellings. Anatomy and electrophysiological recor...
متن کاملFasting metabolism and thermoregulatory competence of the star-nosed mole, Condylura cristata (Talpidae: Condylurinae).
Metabolic and body temperature (Tb) responses of star-nosed moles (Condylura cristata) exposed to air temperatures ranging from 0 to 33 degrees C were investigated. The thermoneutral zone of this semi-aquatic mole extended from 24.5 to 33 degrees C, over which its basal rate of metabolism averaged 2.25 ml O2 g-1 h-1 (45.16 J g-1 h-1). This rate of metabolism is higher than predicted for terrest...
متن کاملEffects of stimulus duration on neuronal response properties in the somatosensory cortex of the star-nosed mole.
Star-nosed moles have a series of mechanosensory appendages surrounding each nostril. Each appendage is covered with sensory organs (Eimer's organs) containing both rapidly adapting and slowly adapting mechanoreceptors and each appendage is represented in primary somatosensory cortex (S1) by a single cortical module. When the skin surface of an appendage is depressed, neurons in the correspondi...
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ژورنال
عنوان ژورنال: Between the Species: An Online Journal for the Study of Philosophy and Animals
سال: 1993
ISSN: 1945-8487
DOI: 10.15368/bts.1993v10n1.10