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General

General nature or nature terms.

Contributors in General

General

semilunar valve

Biology; General

A valve between each ventricle of the heart and the artery connected to that ventricle.

seminal vesicles

Biology; General

Glands that contribute fructose to sperm. The fructose serves as an energy source. The structures that add fructose and hormones to semen.

seminiferous tubules

Biology; General

Tubules on the interior of the testes where sperm are produced.

sensor

Biology; General

In a closed system, the element that detects change and signals the effector to initiate a response.

sensory cortex

Biology; General

A region of the brain associated with the parietal lobe.

sensory input

Biology; General

Stimuli that the nervous system receives from the external or internal environment; includes pressure, taste, sound, light, and blood pH.

sensory neurons

Biology; General

Neurons that carry signals from receptors and transmit information about the environment to processing centers in the brain and spinal cord. Neurons carrying messages from sensory receptors to the ...

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