Functional characteristics of mechanoreceptors in sinus hair follicles of the cat - PubMed Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1973 Dec;235(2):287-315.
doi: 10.1113/jphysiol.1973.sp010388.

Functional characteristics of mechanoreceptors in sinus hair follicles of the cat

K M Gottschaldt, A Iggo, D W Young

Functional characteristics of mechanoreceptors in sinus hair follicles of the cat

K M Gottschaldt et al. J Physiol. 1973 Dec.

Abstract

1. The discharge of impulses in afferent fibres dissected from the infraorbital and ulnar nerves of anaesthetized cats was recorded during controlled movements of the maxillary and carpal sinus hairs.2. Four main types of afferent units were identified. Two had slowly adapting responses characteristic of the epidermal type I, and dermal type II mechanoreceptors of the hairy skin. Two rapidly adapting responses to movement of the sinus hairs were found, one with a high velocity threshold and another with a low velocity threshold.3. The slowly adapting units showed a power relationship between the degree of displacement of the hair and the mean interspike interval of the response. Slowly adapting units also exhibited a power relationship between the velocity of displacement of a hair and the mean interspike interval of the response.4. The conduction velocities of all types of afferent units were measured and fell in the range of the Aalpha, fast myelinated fibres.5. Movements of the carpal sinus hairs yielded both types of slowly adapting response recorded in fibres of the ulnar nerve directly innervating the carpal sinus hair follicles, and rapidly adapting responses from Pacinian corpuscles, found in close association with, but external to, these follicles.6. On the basis of the findings in this study and the results of anatomical investigations of the receptor structures in the sinus hair follicle a correlation between the distinguishable afferent responses and the morphologically identifiable nerve endings has been proposed.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. J Physiol. 1960 Aug;153:99-112 - PubMed
    1. J Neurophysiol. 1968 Nov;31(6):833-48 - PubMed
    1. Acta Physiol Scand. 1969 Dec;77(4):396-416 - PubMed
    1. Acta Physiol Scand. 1969 Dec;77(4):417-28 - PubMed
    1. J Biophys Biochem Cytol. 1957 May 25;3(3):331-42 - PubMed

LinkOut - more resources