The phrase "a body within" is correct and usable in written English.
It can be used in contexts discussing anatomy, physical presence, or metaphorical interpretations of identity or existence.
Example: "The artist's sculpture depicted a body within a larger structure, symbolizing the connection between the individual and the universe."
Alternatives: "an entity inside" or "a figure within".
"He created a body within a body.
A medical school has to accept a body within six days of death, although typically it is embalmed within three.
Regarding the soul as a body within another body, science envisions it as dissolving when the body dissolves.
Police investigating the disappearance of the children's author Helen Bailey have found what is believed to be a body within the grounds of her home in Royston, Hertfordshire.
The new policy was introduced in December, when the House of Bishops, a body within the church, published a list of recent decisions.
Deceleration injury, impact injury to a body within or upon a rapidly moving object caused by the forces exerted when the object is brought to a sudden halt.
After getting a death certificate -- Alison and Doug had Caroline's pediatrician sign off on one -- a family is free to do what it wants with a dead body within a reasonable amount of time.
Further still, beyond other skeletal remains scattered by vultures, lies a third body within a wood and wire cage.
The architecture of synaptic connections makes it possible to introduce reagents into the presynaptic terminals by diffusion from a cell body within a short time.
The position of the RDD as a research body within a government body (the Ghana Health Service) had important implications for the scope of the research evidence and the outcomes from the project.
Insects, being poikilotherms, do not use their metabolism to maintain a body temperature within narrow ranges, contrary to homeothermic animals.
