« previous next »
« previous next »
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

The internal organization of cells, tissues, organs, and organ systems in a mammal. The internal organization of cells, tissues, organs, and organ systems in a mammal.
ON and OFF Ganglion Cells ON and OFF Ganglion Cells
Hematopoiesis: Blood cells are formed from stem cells under the influence of hormones such as ... Hematopoiesis: Blood cells are formed from stem cells under the influence of hormones such as ...
Periodic oscillations of the levels of glycolytic intermediates in yeast cells undergoing glycolysis Periodic oscillations of the levels of glycolytic intermediates in yeast cells undergoing glycolysis
Spermatogenesis and oogenesis in animal cells Spermatogenesis and oogenesis in animal cells
Video: Regulation of GFR: three methods, autoregulation & autoregulation via myogenic mechanism

For a complete list of videos, visit our video library