Science Source December 28, 2009 DVD

Aboriginal art in Australia's Northern Territory, painted on rock at the Nourlangie site in Kakadu National Park. This painting depicts Barrginj, wife...

This color enhanced, sagittal (from the side) MRI image of the brain shows normal anatomy including the cerebral hemispheres, the brainstem and the ce...

This color enhanced, sagittal (from the side) MRI image of the brain shows normal anatomy including the cerebral hemispheres, the brainstem and the ce...

This color enhanced, sagittal (from the side) MRI image of the brain shows normal anatomy including the cerebral hemispheres, the brainstem and the ce...

This color enhanced, sagittal (from the side) MRI image of the brain shows normal anatomy including the cerebral hemispheres, the brainstem and the ce...

View of inside of heart with catheter placed over aberrant muscular connection between left atrium and ventricle.

Illustration showing 3 causes of intravenous extravasation, the accidental administration of intravenous drugs into the surrounding tissue. 1) Needle...

Ultrasound of a fetus at 20 weeks.

Conceptual image showing a male silhouette with an electrocardiogram (EKG) superimposed.

Pre-Incan gold ceremonial tumi, from the National Museum of Anthropology and Archaeology, Peru. A tumi is a sacrificial ceremonial knife.

14" diameter red oak, struck by 3-bolt lightning strike. Path of strike ran from top of tree down to roots. Bolts ran down through cambium layer, goug...

14" diameter red oak, struck by 3-bolt lightning strike. Path of strike ran from top of tree down to roots. Bolts ran down through cambium layer, goug...

An embryo, placenta and fetal membranes after two months of development.

Dorsal view of the nerves in the forearm of a human.

Statues at Abu Simbel. Constructed during the reign of Pharaoh Ramesses II in the 13th century BC.

Nicotine patch.

Dental x-rays showing fillings in molar.

Archaeological excavation at the ancient Roman town of Heruculaneum, which, along with Pompeii, was destroyed by the eruption of Mount Vesuvius in 79...

Archaeological excavation at the ancient Roman town of Heruculaneum, which, along with Pompeii, was destroyed by the eruption of Mount Vesuvius in 79...

Blood sampling equipment: tourniquet, alcohol prep pad, syringe, sealed ID, test tubes, surgical gloves, and band-aids.

Drawing blood from a patient for testing.

Drawing blood from a patient for testing.

HIV test - yellow means positive, clear means negative.

HIV test - yellow means positive.

HIV test - clear means negative.

Normal electrocardiogram (EKG) readout during a stress test.

Drawing blood for testing.

Drawing blood from a patient for testing.

Aboriginal art in Australia's Northern Territory, painted on rock in Kakadu National Park. On the left is Namarrgon who broke the incest laws with his...

Aboriginal art in Australia's Northern Territory, painted on rock at the Nourlangie site in Kakadu National Park. This painting depicts Barrginj, wife...

Cheomseongdae ("star-gazing tower" in Korean), an astronomical observatory located in Gyeongju, South Korea. It is the oldest surviving observatory in...

Electroencephalogram (EEG) of a patient asleep and dreaming. Electroencephalography measures electrical activity created by the firing of neurons in t...

MRI Imaging. MRI (magnetic resonance imagine) is a diagnostic technique that produces cross-sectional images of parts of the body and is particularly...

Image of the base of a human brain.

Image of the base of a human brain.

Image of the base of a human brain.

Image of the right side of a human brain.

The brain stem of a human brain.

A public health nurse visits a senior citizen in her home.

Stucco mask of the Sun God Kinich Abau at Temple of the Masks in the archaeological ruins of Lamanai. Lamanai was an ancient Mayan city located in nor...

Main Temple in the pre-Columbian Mayan ruins of Tulum in Mexcio.

Fundus camera image showing the fondus oculi, blood vessels, optic disc and macula of the eye.

Reducing a child's fever.

A girl has her temperature taken with a glass thermometer.

Reducing a child's fever.

Image of an experment at a laser laboratory.

Image of an experment at a laser laboratory.

Transverse section through base of brain, with the cerebellum removed. Image shows the midbrain, cerebral aqueduct, quadrigeminal plate, olfactory ner...

Sagittal section of the human brain; shows the corpus callosum, along with the cerebellum, Medulla oblongata, pons, cerebrum, and other structures.

Image of the right side of a human brain.