____________________ Are Structures in Veins That Prevent the Blood from Flowing

question 228

Short Answer

____________________ are structures in veins that prevent the blood from flowing backward.

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Definitions:

Menstrual Period

The monthly shedding of the uterine lining in females of reproductive age, accompanied by bleeding through the vagina.

Renal Problem

Any disorder or condition that affects the functioning of the kidneys.

Waxy

Having the characteristics of wax; often used to describe a texture or appearance, such as skin that looks or feels like wax.

Safranin

A bright red dye used in histology and cytology for staining cell nuclei, indicating chromatin and nucleoli.