Home > Terms > English, UK (UE) > Platysma muscle

Platysma muscle

The platysma muscle is a broad sheet of muscle arising from the pectoral (chest) and deltoid (shoulder) muscles and rises over the collarbone (clavicle), proceeding upward in a slanting manner along the sides of the neck. The muscle draws the lower lip and corner of the mouth sideways and down, partially opening the mouth, as in an expression of surprise or fright. When all the fibres work to their maximum, the platysma increases the diameter of the neck as well, as may be seen during the intensive breathing of a sprinting runner.

This is auto-generated content. You can help to improve it.
0
Improve it
  • Part of Speech: noun
  • Synonym(s):
  • Blossary:
  • Industry/Domain: Anatomy
  • Category: Human body
  • Company:
  • Product:
  • Acronym-Abbreviation:
More
Collect to Blossary

Other Languages:

More

Member comments

You have to log in to post to discussions.

Related terms

platysma muscle
Anatomy; Muscular

The platysma is a superficial muscle that overlaps the sternocleidomastoid. It is a broad sheet arising from the fascia covering the upper parts of the pectoralis major and ...

platysma muscle
Anatomy; Human body

The platysma muscle is a broad sheet of muscle arising from the pectoral (chest) and deltoid (shoulder) muscles and rises over the collarbone (clavicle), proceeding upward in a ...

muscle
Anatomy; Gross anatomy

A part of the body that can shorten or contract to produce movement. In humans and other vertebrates, muscles contract automatically.

muscle
Health care; Arthritis

Fibrous tissue in the body that holds us upright and gives the body movement, including movement that we consciously initiate (such as waving a hand) and movement we are scarcely ...

muscle
Biology; Zoology

Bundle of contractile cells which allow animals to move. Muscles must act against a skeleton to effect movement.

muscle
Fitness; Weight loss

Muscle is the tissue of the body which primarily functions as a source of power. There are three types of muscle in the body. Muscle which is responsible for moving extremities ...

abdomen
Anatomy; Human body

The part of the body cavity below the chest, from which it is separated by the diaphragm.

bone marrow
Anatomy; Human body

The soft blood-forming tissue that fills the cavities of bones and contains fat and immature and mature blood cells, including white blood cells, red blood cells and platelets.

meninges
Anatomy; Human body

A series of membranous layers of connective tissue that protect the central nervous system (brain and spinal cord).

medulla oblongata
Anatomy; Human body

The base of the brain, which is formed by the enlarged top of the spinal cord. This part of the brain directly controls breathing, blood flow and other essential functions.

olfactory nerve
Anatomy; Human body

A nerve that registers smells by carrying the impulses for the sense of smell from the nose to the brain.

optic nerve
Anatomy; Human body

The optic nerve connects the eye to the brain. It carries the impulses formed by the retina, the nerve layer that lines the back of the eye and senses light and creates impulses. ...

Terms in the News

Featured Terms

Harry8L
  • 0

    Terms

  • 0

    Blossaries

  • 1

    Followers

Industry/Domain: Computer Category: PC peripherals

Printer

Type of peripheral device that produces hard copies of information generated by a computer on paper and other media

Contributor

Featured blossaries

World's Deadliest Diseases

Category: Science   1 8 Terms

HaCLOWNeen

Category: Culture   219 10 Terms

Browers Terms By Category

TERMS

SOCIAL

EXTRAS

SOLUTIONS