The adrenal gland is one of a number of hormone-producing organs that make up the endocrine system. Gary Thibodeau, PhD, author of the book, "The Human Body in Health and Disease," describes the adrenal gland as consisting of two individual...
There is one adrenal gland on top of each kidney. The gland is made of two parts. The adrenal medulla is the inner part of the gland. The adrenal cortex is the outer part. It makes up 90 percent of the gland and has three areas which are referred...
An adrenal gland is found on the upper edge of each kidney, where it is attached to the kidney. Composed of two parts, the inner part of the gland is called the adrenal medulla. The outer part is the adrenal cortex. There are three areas, or...
There is more to the sport of bodybuilding than just lifting weights and posing. The endocrine system plays a vital role in how bodybuilders obtain their final appearance. The adrenal cortex secretes many different steroid hormones that regulate...
The human brain is the most complex organ in the body. Rapid events occur within the brain that allow you to interact with your environment. Reaching to grasp a cup of coffee seems like an easy task. However, the underlying cortical processes...
The auditory cortex is divided into three separate parts: the primary, the secondary and the tertiary auditory cortex. The primary auditory cortex, located in between the two others, is mainly composed of two areas named the Brodmann areas 41 and...
The Babolat Drive Z-Lite is a light weight tennis racquet designed for comfort and easy maneuverability. Tennis players who are looking for power, control and spin potential will find the Drive Z-Lite a great choice.
The eyes, nose, ears, tongue and skin contain sensory receptors or specialized nerve endings that act as sense detectors. Sensory receptors transfer detected stimuli to regions of the brain that allow people to perceive the sensory information....
The brain consists of different regions that have distinct functions but communicate with each other. The brain consists of the cerebral cortex, brain stem and cerebellum. The cerebral cortex is further broken down into four lobes: the frontal,...
The brain consists of three functional regions, which developed at differing times over the course of human evolution. The newest and most complex area of the brain is the forebrain, which consists of the cerebrum and its underlying support...
Memory is a complex function that involves multiple steps, starting with the input of the stimulus to the brain and ending with independent memory retrieval. Georgia Tech states that human memory is made up of three basic stages: sensory memory,...
Hearing a sound and detecting its origin sparks a complex cascade of neurological processes in areas of the brain responsible for discerning sound, vision and object location. Brain regions, such as the temporal cortex, occipital cortex, posterior...
The cerebrum is the large upper area of the brain, which is physically divided at the midline into the right and left hemispheres. Within each hemisphere are five distinct regions, the insula, and the frontal, temporal, occipital and parietal...
Nicotine is an addictive substance that causes changes in the brain. According to the Mayo Clinic, nicotine produces mood-altering effects in the brain in addition to potential health problems. The brain is comprised of nerve cells that...
Movements, both voluntary and involuntary, are coordinated by multiple regions of the brain. The different parts of the brain communicate with each other to carry out the desired movement. If damage occurs to one part of the brain that affects...
In "The Cognitive Neurosciences III", there are over 1000 pages devoted to explaining the relationship between mind and brain. At the most general level, human cognitive processing occurs in the cortex, the outer layer of the brain composed of...
The brain is an incredibly complex organ, responsible for managing everything from breathing and physical coordination to logic, language and artistic expression. While all animals have brains, they don't all possess the higher reasoning and...
Many neuroscientists believe that hostility is related to fear and anxiety. It is a response to threatening stimuli. The parts of the brain involved in mediating hostile behavior in humans are within a circuit classically known as the limbic...
The hair you see on your body is basically dead. That is why it doesn't hurt when you get your hair cut at the salon. However, the actual structure of hair is quite complex. Hair is composed of a hard, fibrous protein called keratin. Each strand...
The human brain, or encephalon, is composed of the forebrain, the midbrain and the hindbrain. The forebrain includes the cortex, the latest to appear in evolutionary development, and deeper structures. The cortex is responsible for the higher...
The adrenal glands are an integral part of the endocrine system, which means that they make hormones that are secreted into the bloodstream. Adrenal glands have a profound affect on tissues throughout the body. Adrenal gland activity is controlled...
Adrenal glands are small glands, about 1/4 inch by 3 inches, located on top of each kidney on both sides of the body. These glands combine the adrenal cortex and the adrenal medulla. According to the University of Maryland Medical Center, the...
There is no doubt the brain is a magnificent organ capable of intricate thoughts and endless possibilities. As the chief organ in charge of body functioning, it dictates everything from how you think to how you feel, and ensures that your organs...
The brain is the home of complex processes such as memory, language and attention. Neuroscientists have long believed that these higher-order functions are associated with distinct areas in the brain. But no single area in the brain is responsible...
The adrenals are a pair of triangular glands that sit atop each kidney. Each adrenal has two main tissues: the medulla and the cortex. The medulla secretes two hormones, epinephrine and norepinephrine, which stimulate the body's response to...
The adrenal glands are located in the trunk of the human body, where they rest like caps over the top of the kidneys. These organs are responsible for the production of hormones that influence the levels of sodium, glucose and antibodies in the...
The brain can be divided in to several regions based on physiological characteristics and physical divisions. The central nervous system is generally broken into the fore-brain which includes the cerebrum, the mid- and hind-brain which include the...
Alzheimer's disease is defined by the National Institutes of Health (NIH) as a degenerative brain disease. Most patients start exhibiting symptoms after they reach the age of 60. Alzheimer's disease affects the brain through exponentially greater...
Androgen hormones include a group of hormones, such as testosterone and dihydrotestosterone, produced in the male testes, female ovaries and adrenal glands. Although these hormones regulate male sexual development and physical characteristics,...
Low activity in the prefrontal cortex is one of the main causes of adult ADHD. There are also possibilities of ADHD being passed genetically. Learn how to live with adult ADHD in this free video.
Exercise releases dopamine, which really helps the symptoms of ADHD. Learn how to exercise to control your disorder in this free video clip from a medical professional.
Numerous medication treatment options are available for adults with ADHD including stimulants and anti-depressants. Learn how to live with adult ADHD in this free video.
Adrenal gland cancers are rare cancers occurring in the endocrine tissue of the adrenal glands and are characterized by overproduction of adrenal gland hormones. Learn about the symptoms and treatment options in this video.
Comfortable and supportive hiking shoes are essential for day hikes. Learn how to pick hiking shoes in this free hiking video.