« previous next »
« previous next »
 

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?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Shark Circulatory System Shark Circulatory System
Current Positions of Known Dwarf Planets and SSSBs in the Outer Solar System Current Positions of Known Dwarf Planets and SSSBs in the Outer Solar System
The immune system has several different components that work in concert. The immune system has several different components that work in concert.
Empathy draws a more positive response from the patient because it is based on the willingness of th Empathy draws a more positive response from the patient because it is based on the willingness of th
Process Flow Diagram of a Dual-Stage Pressure System Process Flow Diagram of a Dual-Stage Pressure System
A typical bus system showing module CAN communications and twisted pairs of wire. A typical bus system showing module CAN communications and twisted pairs of wire.
Video: Phases of mitosis

For a complete list of videos, visit our video library