testis
Example Sentences
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In the cell, it binds to other DNA, leading to testis formation, according to the National Library of Medicine.
From Los Angeles Times ● Mar. 26, 2026
Four additional genes are active only in the testis and are essential for sperm production.
From Science Daily ● Mar. 20, 2026
Previous research has shown that STK33 is enriched in the testis and is specifically required for the formation of functional sperm.
From Science Daily ● May 23, 2024
"In humans, differently from other animal species and lower mammalians, testis are located outside of the abdomen. This contributes to the maintenance of an organ temperature 2º to 4° C below core body temperature."
From Salon ● Mar. 28, 2024
A male that I examined had one atrophied testis.
From Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz by John M. Legler
On average, the optimal temperature of the testes - where sperm is stored - should be two to four degrees lower than the average body temperature of 37 degrees.
From BBC ● Feb. 25, 2026
Instead, a subtle form of natural selection within the testes appears to give certain mutations a reproductive advantage, allowing them to become more common during sperm formation.
From Science Daily ● Oct. 19, 2025
In the brain, sexual differentiation starts before birth and results from a combination of sex chromosomes in brain tissue, sex hormones produced by the testes or ovaries and the environment.
From Salon ● Apr. 22, 2025
Researchers found high levels of microplastics in human and dog testes.
From Los Angeles Times ● May 23, 2024
Young rats exposed to methoxychlor had extraordinarily small testes.
From "Silent Spring" by Rachel Carson
