Dennis Kunkel Microscopy, Inc.

Science Stock Photography

New Customer, register Here
Returning Customers Log In
  Lightbox Shopping Cart Stats Your Price Quote Request List is empty

Advanced Search Advanced Search

Vascular bundle in celery ( Apium graveolens)
Click image for the most recent scientific stock photography images
Visit Our Education Site
New - Express Price Quote

Now available, get a price quote quick.

Zika Virus

We have a new Zika virus image. Please click on the images listed to view further details.


Prev. Image       Return to Thumbnail Page Send to Friend Add to Lightbox       Next Image
Rights Managed Image ♦ License Required for Use ♦ Photo Credit is Required ♦ Price Quote Request Form

Image #   860204-35
Name:   Enkephalin (endorphin) crystals
Copyright:   Copyright 1985 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Enkephalin (endorphin) crystals. Enkephalin is a naturally occurring peptide endorphin (penta-peptide) isolated from the brain that has strong effects similar to opiates, and probably functions as a neurotransmitter. Endorphins bind to the opioid receptors in the brain. They disinhibit the dopamine pathways, causing more dopamine to be released into the synapses. Endorphins are endogenous opioid biochemical compounds. They are peptides produced by the pituitary gland and the hypothalamus in vertebrates, and they resemble the opiates in their abilities to produce analgesia and a sense of well-being. In other words, they work as natural pain killers. The term endorphin is used generally to refer to all of the endogenous opioid compounds and implies a pharmacological activity (analogous to the activity of the corticosteroid category of biochemicals). The best-known endorphins are α-endorphin, β-endorphin and γ-endorphin, of which β-endorphin appears to be most implicated in pain relief. Endorphins regulate feelings of pain, hunger, heightened sensitivity and are connected to the production of sex hormones.
Magnification*: x40
Type: LM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   860204-35 12.01.04 a-endorphin Ŗ-endorphin alpha-endorphin beta-endorphin biochemical crystal crystals drug drugs endogenous opioid endorphins enkephalin hunger natural pain killer neurotransmitter opiate opiates opioid receptors pain relief peptide penta-peptide pharmacological activity synapse synapses transmitter gamma-endorphin endorphin LM

Price Quote Request Form

Rights Managed Options - In order to provide a Price Quote, we need to know how the image will be used. Please complete the following Price Quote Request Form. We will respond with a Price Quote by email ASAP (usually the same or next business day).
  • Select "Quote 1" from the "Price Quote Request" field, then select an option from each drop down menu.
  • Use the Comments box to clarify details not adequately covered in the fields below.
  • When finished, click the "Add to Price Quote Request List" button below the comment box.

Price Quote Request:
Format Detail:
Duration of Use:
Copies Produced:
Delivery Method: