smooth muscle tissue in dogs

Muscle tissue which is unstriated, composed primarily of smooth muscle fibers surrounded by a reticulum of collagen and elastic fibers. Smooth muscle differs from striated muscle in the much higher actin/myosin ratio, the absence of conspicuous sarcomeres and the ability to contract to a much smaller fraction of its resting length[GO]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the smooth muscle tissue is

Muscle tissue which is unstriated, composed primarily of smooth muscle fibers surrounded by a reticulum of collagen and elastic fibers. Smooth muscle differs from striated muscle in the much higher actin/myosin ratio, the absence of conspicuous sarcomeres and the ability to contract to a much smaller fraction of its resting length[GO]. The atlas records it as a tissue at the tissue scale in the dog.

Where the smooth muscle tissue is

It sits within the muscular system. Only the system is known. The position shown carries almost no spatial information.

What the smooth muscle tissue connects to

The atlas records 30 typed relationships for it, across 4 kinds of connection. a kind of muscle tissue.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the smooth muscle tissue. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as involuntary muscle, non-striated muscle, smooth muscle, textus muscularis nonstriatus, visceral muscle and visceral muscle tissue, and 1 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001135, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: muscle tissue.
• subtype: anal region smooth muscle, arrector muscle of hair, arterial system smooth muscle, blood vessel smooth muscle, esophagus muscularis mucosa and gallbladder smooth muscle, and 18 more.
• composed of: myometrium, orbitalis muscle, stomach muscularis externa and stomach smooth muscle inner oblique layer.
• contributes to morphology of: stomach muscularis externa.

Questions

Where is the smooth muscle tissue?

It sits within the muscular system. Only the system is known. The position shown carries almost no spatial information.

What does the smooth muscle tissue connect to?

A kind of: muscle tissue.

Is the smooth muscle tissue the same in other species?

This page describes the dog. The human record of the same structure sits beside it on /compare, over one shared model rather than two atlases built separately.