Artwork showing muscle movement mechanism in arm

Artwork showing muscle movement mechanism in arm

P154/0135 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 52.0MB

Downloadable file size: 827.6KB

Price image Pricing

Please login to use the price calculator


Credit: CARLYN IVERSON/SCIENCE PHOTO LIBRARY

Caption: Muscle movement. Artwork of the mechanism of upper arm movement. First a nerve signal from the conscious part of the brain reaches a cell body (blue) of a motor neurone (nerve cell) in the grey matter of the spinal cord (at lower left). This impulse travels down an axon (blue fibre) through the spinal nerve root (at lower centre) to the arm's biceps muscle. The attachments of the axon to the long thin skeletal, or striated, muscle fibres are shown at upper right. Protein filaments (myofibrils) in the fibres slide over one another, causing the muscle to relax and the arm to straig- ten. Nerve impulses from the muscle travel back to the spinal cord through a sensory neurone (red).

Release details: Model release not required. Property release not required.

Keywords: anatomy, arm, artwork, human body, muscle, muscle fibre, muscle pathway, muscles, myofibril, nerve fibre, skeletal, skeletal muscle, spinal cord, striated muscle

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.