Human Anatomy

What is a duplex kidney October 19

Each kidney usually has one ureter connecting it to the bladder. According to The Children's Hospital of Philadelphia, people with a duplex kidney have an extra ureter that either empties directly into the bladder or connects to the other ureter. If

What are the names of the pulmonary capacities October 14

Spirometry values are important in the calculation of lung volumes that cannot be determined directly and are useful in pulmonary function tests, according to The Merck Manual Professional Edition. Functional residual capacity is the sum of residual

Why are veins blue October 10

There are several reasons why an object is the color it appears. Two main reasons are the absorption and scattering properties of the material being distinct from those of the incoming wavelengths of the light that illuminates it. Blood looks red bec

What does the ileum do October 8 reports that the last section of the ileum, the terminal ileum, is where B12, other water soluble vitamins and nutrients passed on from the jejunum are absorbed. The ileum is the last of three sections of the small intestine, and it i

How do neurons transmit information September 16

Three examples of inhibitory neurons are seratonin, GABA and dopamine. Seratonin regulates several areas of the brain and nervous system, including sleep cycle, mood and pain management. GABA is an inhibitory neurotransmitter that is often released i

How does the inner ear control dizziness September 16

Inside each loop is a flexible structure called a cupula, which stretches across the duct like a drum head. In back of the cupula are sensory hair cells that have tiny extensions, called stereocilia, brushing against the cupula. When the head turns,

How does the human shoulder joint work September 16

The human shoulder comprises three bones: clavicle, scapula and humerus, or more commonly known as the collarbone, shoulder blade and upper arm bone, respectively. The shoulder joint, otherwise referred to as the glenohumeral joint, consists of only

How long can a person survive without food September 16

In 1981, Bobby Sands dies after 66 days of a hunger strike. Other stories have emerged of stranded hikers surviving upwards of 50 to 60 days. Without food, the body succumbs to hunger and starts to eat away at muscle tissue and fat for energy. Some b

What does a hemoglobin A1C chart show September 15

The A1C test is used in diabetes management, explains the NIDDK. If the amount of sugar entering the bloodstream is consistently high, some of the glucose attaches to the hemoglobin. Because red blood cells have a life span of three months, the A1C t

How is hemoglobin converted to hematocrit September 15

Traditionally, medical personnel use either of these two numbers to determine anemia. Of the two, the hematocrit value requires less specialized equipment and is the quicker option, according to "Clinical Methods: The History, Physical, and Laborator

What is the largest vein in the human body September 15

What is the largest vein in the human body
The superior vena cava drains the exhausted blood from the head, neck, arms and chest. The inferior vena cava receives blood from the veins of the abdomen and lower extremities. These veins ...

How many organs are inside the human body September 15

An organ is a structure with at least two kinds of tissues that work together for a particular purpose. In addition to the vital organs, the skin is also an important organ, as it keeps out potentially harmful viruses, bacteria and pathogens. It is t

What does the immune system do September 15

The immune system detects and reacts to certain indicators, such as the danger-associated molecular patterns and the pathogen-associated molecular patterns, and it responds by sending innate and adaptive immune cells. The immune cells communicate by

What causes a high red blood cell count September 15

Other secondary causes of a high red blood cell count include smoking, kidney transplants, and living at higher altitudes where the air has less oxygen, according to Mayo Clinic. Anabolic steroids, dehydration and carbon monoxide poisoning are additi

Where are fat cells located September 14

The main purpose of the fat cells inside of the human body is to store excess energy obtain from food. They are also used to protect vital organs and nerve tissues. Once a person's body uses all of the energy obtain from regular food intake, then it

What are dysmorphic features September 14

Many of these types of features can be genetic, passed from parent to child, or they can be a type of ethnic identifier. One such example of an ethnic identifier is the different eye appearances between Asians and other races around the world. These
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