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Table of ContentsView AllTable of ContentsAnatomyFunctionAssociated ConditionsTests Table of ContentsView All View All Table of Contents Anatomy Function Associated Conditions Tests The diencephalon has a central location within the human brain sitting just above the brain stem. It is divided into four main structures—the thalamus,hypothalamus, epithalamus, and subthalamus. The diencephalon is involved in many crucial bodily functions including coordinating with theendocrine systemto release hormones, relaying sensory and motor signals to the cerebral cortex, and regulating circadian rhythms (the sleep wake cycle)....

Table of ContentsView AllTable of ContentsAnatomyFunctionAssociated ConditionsTests Table of ContentsView All View All Table of Contents Anatomy Function Associated Conditions Tests Theepididymisis a long, coiled tube that transports sperm from the testes to the vas deferens. The epididymis consists of three parts: During their journey through the various parts of the epididymis, sperm mature and gain the ability to swim. Because of its role in sperm transport and maturation, functional and structural issues with the epididymis can be associated with infertility or reduced fertility....

Table of ContentsView AllTable of ContentsAnatomyFunctionConditionsTreatment Table of ContentsView All View All Table of Contents Anatomy Function Conditions Treatment The esophagus is an organ that connects the back of the throat (or pharynx) with the stomach. It is the muscular channel that delivers food, liquids, and saliva to the rest of the digestive system. Ericsphotography/Getty Images The esophagus is an organ in yourdigestive systemthat is made from layers of muscle and tissue....

Table of ContentsView AllTable of ContentsLocationFunctionConditionsTreatments Table of ContentsView All View All Table of Contents Location Function Conditions Treatments This article will go over the anatomy and function of the eustachian tube. You will also learn about conditions that can affect the auditory tube. Ninepence / Getty Images Where Is the Eustachian Tube? The eustachian tube is located in a part of the head and neck called theparapharyngealspace. It runs from the front wall of the middle ear to the side wall of the top part of the throat (nasopharynx)....

Table of ContentsView AllTable of ContentsAnatomyFunctionAssociated ConditionsRehabilitation Table of ContentsView All View All Table of Contents Anatomy Function Associated Conditions Rehabilitation There are two sets of intercostal muscles within the rib cage. External intercostals can be found on the surface, just below the skin, and provide muscle contractions which assist with inhalation. Internal intercostals can be found in the layer of muscles directly below the external intercostals. Internal intercostals assist with exhalation and moving the ribs and chest cavity back to their original position....

The external jugular vein is a superficial vein of the neck that drains blood from theparotid gland, most of the scalp, and side of the face, then back to the heart. It also assists with blood flow down from the head when other major veins, like theinternal jugular vein, are compressed or blocked. Complications affecting the external jugular vein are relatively rare. SHUBHANGI GANESHRAO KENE / Getty Images Anatomy All veins carry deoxygenated blood from the organs, muscles, and other structures back to the heart....

Table of ContentsView AllTable of ContentsAnatomyFunctionAssociated ConditionsTests Table of ContentsView All View All Table of Contents Anatomy Function Associated Conditions Tests The fallopian tubes transport eggs from the ovaries to the uterus. They are important parts of the female reproductive system. Fertilization normally happens in the fallopian tubes. The fallopian tubes are also known asoviductsoruterine tubes.Medical procedures that block the fallopian tubes can be used as a form of permanent contraception, or sterilization....

Table of ContentsView AllTable of ContentsAnatomyFunctionAssociated ConditionsRehabilitationFrequently Asked Questions Table of ContentsView All View All Table of Contents Anatomy Function Associated Conditions Rehabilitation Frequently Asked Questions The fibula is the slender long bone that is attached next to and a little below thetibia(shinbone). It bears very little body weight. The fibula provides lateral stability for the lower leg and acts as a tie rod to increase the range of motion for the ankle, especially lateral and medial rotation of the foot....

Table of ContentsView AllTable of ContentsDevelopmentAnatomyConditions Affecting ItDiagnosisSupporting FunctioningTreatment Table of ContentsView All View All Table of Contents Development Anatomy Conditions Affecting It Diagnosis Supporting Functioning Treatment The frontal lobe is the front portion ofthe brainand the largest of the four major lobes of the cerebral cortex. It controls thinking skills, reasoning, self-control, and motor function. A person has left and right frontal lobes. Dementiaoften involves gradually worsening damage to the frontal lobe of the brain, and many different neurological conditions can also affect the frontal lobe—including stroke, brain tumors, and head trauma....

Table of ContentsView AllTable of ContentsAnatomyFunctionAssociated ConditionsTreatment Table of ContentsView All View All Table of Contents Anatomy Function Associated Conditions Treatment “Ganglia” is the plural of the word “ganglion.” Ganglia are clusters of nerve cell bodies found throughout the body. They are part of theperipheral nervous system (PNS)and carry nerve signals to and from thecentral nervous system (CNS). Ganglia are divided into two broad categories: the sensory ganglia and the motor ganglia (which are associated with the autonomic nervous system)....

Table of ContentsView AllTable of ContentsAnatomyFunctionConditionsRehabilitationFrequently Asked Questions Table of ContentsView All View All Table of Contents Anatomy Function Conditions Rehabilitation Frequently Asked Questions The calf is composed of two muscles, the soleus and the gastrocnemius, which is a large muscle located in the back of your lower leg. The gastrocnemius muscle is an important mover of your lower leg and is responsible for normal walking and running actions. The gastrocnemius joins the soleus to form theAchilles tendon, the large tendon that attaches to your heel bone....

Table of ContentsView AllTable of ContentsAnatomyFunctionAssociated Conditions Table of ContentsView All View All Table of Contents Anatomy Function Associated Conditions The geniculate ganglion is a collection of sensory neurons of thefacial nerve, which is theseventh cranial nerve(CN VII). The ganglion is located in a bony structure that’s called the facial canal. It receives fibers from several components of the facial nerve, then sends out fibers to multiple muscles, glands, the tongue, and other structures....

Table of ContentsView AllTable of ContentsAnatomyFunctionAssociated ConditionsManagement Table of ContentsView All View All Table of Contents Anatomy Function Associated Conditions Management The glossopharyngeal nerve, which is also called the ninth cranial nerve, has both sensory (sensation) functions and motor (movement) functions in the body, as well as specialized sensory function and parasympathetic function. The glossopharyngeal nerve is involved in taste, salivation, swallowing, and speech. It also provides nerve supply to the tonsils and middle ear and regulates blood flow to the brain....