1. Home
  2. Education
  3. Biology
photo of Regina Bailey

Regina's Biology Blog August 2005 Archive

By Regina Bailey, About.com Guide to Biology since 1997

Heart Anatomy: Atrioventricular Bundle

Wednesday August 31, 2005
The atrioventricular bundle carries cardiac impulses down the septum to the ventricles.

Steps of Glycolysis

Saturday August 27, 2005
Glycolysis can occur with or without oxygen. In the presence of oxygen, glycolysis is the first stage of cellular respiration. Without oxygen, glycolysis allows cells to make small amounts of ... Read More

Change Blindness

Wednesday August 24, 2005
Researchers from UCLA reveal that the parietal cortex of the brain is responsible for change blindness. Change blindness is the inability to notice major changes in a visual scene.

Brain Anatomy: Brainstem

Monday August 22, 2005
The brainstem is located at the juncture of the cerebrum and the spinal column. The brainstem relays information between the peripheral nerves and spinal cord to the upper parts of ... Read More

Resistant Bacteria Defend Against Antimicrobials

Saturday August 20, 2005
Researchers reveal that some bacteria protect themselves from the body's defense mechanisms. These bacteria sense antimicrobial peptides and release bacterial genes, which trigger the build-up of bacterial cell surfaces.

Epilepsy Linked to Malfunctioning Astrocytes

Wednesday August 17, 2005
A study suggests that epilepsy may be caused by brain cells called reactive astrocytes.

Heart Anatomy: Pulmonary Valve

Wednesday August 17, 2005
The pulmonary valve is a flap-like structure, located between the right ventricle and the pulmonary artery.

Cancer and Alcohol Link

Thursday August 11, 2005
Researchers have discovered a link between alcohol and cancer using a new chemical assay analysis method. While alcohol is not a cancer causing agent, it is believed to be metabolized ... Read More

Sabertooth DNA

Thursday August 11, 2005
After analyzing DNA from the bones of a sabertooth cat, researchers have determined that they are not directly related to modern cats.

Heart Anatomy: Tricuspid Valve

Monday August 8, 2005
The tricuspid valve is a flap-like structure located between the right atrium and the right ventricle.

Cloned Dog

Thursday August 4, 2005
Scientists have succeeded in cloning a dog using the somatic cell nuclear transfer method. The animal, named Snuppy, was cloned from the skin cells of an Afghan hound.

Brain Anatomy: Amygdala

Tuesday August 2, 2005
The amygdala is an almond shaped mass of nuclei located deep within the temporal lobes. This structure is important for determining emotional responses, especially those associated with fear.

Explore Biology

About.com Special Features

A Smarter Future

Tips that will help finance your education, excel in the classroom, and advance your career. More >

How to Ace the GRE

Being well prepared is the first step; here are more essential suggestions. More >

  1. Home
  2. Education
  3. Biology

©2009 About.com, a part of The New York Times Company.

All rights reserved.