Facts about blood vessels
By: Jose Juan Gutierrez
The blood vessels form part of the circulatory system. The circulatory system comprises a continuous system of tubes, which transports nutrients, oxygen, and water to millions of body cells and carries away waste material, including carbon dioxide (CO2) from the body. The major types of...
Brain structures that play a role in the fear response
By: Alicia M Prater PhD
The fear response is a complex cascade of chemical and electrical signaling triggered by the autonomic nervous system, the involuntary part of the central nervous system. Involved in fear is the fight or flight response, which extends the emotion of fear to physical manifestations, such...
Role of the NMDA receptor in brain injury
By: Alicia M Prater PhD
NMDA receptors are a type of glutamate receptor in the brain. They have been found to play a role in the neurological damage that occurs after a stroke as well as irreversible neuron death after traumatic brain injury. However, these receptors are also important to...
Anatomy of the human elbow
By: Alicia M Prater PhD
The elbow joint is created by three bones - one from the upper arm and two from the lower arm. Its construction allows it to act like a hinge or to rotate via the shoulder joint and crossover of the lower two bones. The elbow...
What is microchimerism?
By: Viven Yeo
Microchimerism is the presence of a small number of cells in an individual that originate from another genetically different individual. These cells contain the DNA of the genetically different individual and may have consequences for human health.Causes of microchimerism The most common cause of...
Facts about blood vessels
By: Norvin Adlawan
Blood vessels, as its name suggests, are vessels that carry blood to different parts of the human body. These intricate ducts act as the conduit of blood so that oxygen and nutrients can be delivered to the tissues. Without the complex networks of blood vessels...
The human vestibular system: A sense of balance
By: Mike Meyers - 680586
The vestibular system is a critical component of the human body. It provides a sense of balance, gives humans an awareness of motion, and performs other critical functions by working with other systems such as the visual system. But what is the vestibular system? How...
Vesalius's approach to human anatomy
By: Poppy Sunderland
Andreas Vesalius (1515–1564) was a Flemish physician who revolutionized the practice of anatomy and changed the way people thought about the human body. Born into a family of physicians and pharmacists, Vesalius began practicing medicine at a time when the approach to the human...
What is microchimerism?
By: M E Skeel
Microchimerism is a medical term and the best way to understand the word is to break it down. The term comes from the word chimera which, in Greek mythology was a fire-breathing monster with the head of a lion, the body of a goat, and...
Structure and function of the stomach
By: Alicia M Prater PhD
The human stomach is a major organ of the gastrointestinal tract and found in the upper left quadrant of the abdomen. This organ system is involved in digestion. Starting with the entry of food via the mouth, it travels down the esophagus to the stomach...

 

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