glándula prostática

glándula prostática

A gland surrounding the urethra at the base of the bladder. It secretes most of the seminal fluid that is expelled with sperm cells during ejaculation.

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Company: Palomar College
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glándula

의료관리; 병원

A group of cells that secrete a substance for use in the body (example, the thyroid gland). The term gland may also refer to a group of cells that collects materials from the ...

enfermedad endémica

인류학; 자연 인류학

A disease that remains at a more or less constant frequency of affected individuals in a population all of the time. Examples: hypertension, tooth decay, and malaria.

polimorfismo

인류학; 자연 인류학

A genetic trait controlled by more than one allele, each of which has a frequency of 1% or greater in the population gene pool. See balanced polymorphism.

termoluminiscencia (TL)

인류학; 자연 인류학

A radiometric dating method based on the fact that trace amounts of radioactive atoms, such as uranium and thorium, in some kinds of rock, soil, and clay produce constant low ...

modelo de asimilación

인류학; 자연 인류학

A hypothesis to explain the origin of modern Homo sapiens. It proposes that the first modern humans evolved in Africa, but when they migrated into other regions they did not ...

potasio-argón

인류학; 자연 인류학

A radiometric dating method based on the fact that potassium-40 in volcanic rock decays into argon-40 and calcium-40 at a known rate. The half-life of potassium-40 is ...

pedernal

인류학; 자연 인류학

A kind of hard, rock with a glassy opaque appearance. It was a favorite raw material for many prehistoric humans for the manufacture of tools such as knives and scraping ...