Finger ridge patterns and tactile sensitivity

Related Experiment Video

Updated: Sep 6, 2026

Assessment of Midline Lingual Point-Pressure Somatosensation Using Von Frey Hair Monofilaments
06:31

Assessment of Midline Lingual Point-Pressure Somatosensation Using Von Frey Hair Monofilaments

Published on: February 21, 2020

D Z Loesch, N G Martin

    Annals of Human Biology
    |March 1, 1984
    PubMed

    More Related Videos

    Tactile Semiautomatic Passive-Finger Angle Stimulator (TSPAS)04:40

    Tactile Semiautomatic Passive-Finger Angle Stimulator (TSPAS)

    Published on: July 30, 2020

    Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test06:00

    Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test

    Published on: September 17, 2021

    Related Concept Videos

    Somatosensation01:33

    Somatosensation

    The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
    Sensory Functions of the Skin01:16

    Sensory Functions of the Skin

    The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses.
    There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
    Papillary Dermis01:11

    Papillary Dermis

    Dermis
    The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
    Papillary Layer
    The papillary layer is made of loose, areolar connective tissue, which means the collagen and...
    Muscles of the Forearm that Move the Hand and Fingers01:16

    Muscles of the Forearm that Move the Hand and Fingers

    The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
    Anterior Compartment
    The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi radialis,...
    Design Example: Resistive Touchscreen01:14

    Design Example: Resistive Touchscreen

    A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
    When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
    Tactile and Chemical Senses01:27

    Tactile and Chemical Senses

    Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex. This...