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Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Animal Cell Animal Cell
Comparison of normal-shaped erythro- cytes and the abnormal sickle shape noted in patients with sick Comparison of normal-shaped erythro- cytes and the abnormal sickle shape noted in patients with sick
Firing Pattern of a REM-ON Cell Firing Pattern of a REM-ON Cell
HIV cycle in an infected cell: (a) latent infection; (b) active infection. HIV cycle in an infected cell: (a) latent infection; (b) active infection.
Basal cell carcinoma Basal cell carcinoma
Checkpoints and proliferation decision points monitor the progress of the cell through the cell cycl Checkpoints and proliferation decision points monitor the progress of the cell through the cell cycl
Video: Nervous pathway to the Neuromuscular (NMJ)

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