Brachial Plexus Image

Brachial Plexus

What is Brachial Plexus and where is it located? An assorted group of nerve fibers that begins at the root of the neck passes through the axilla (armpit or the underarm) and enters the upper arm of the human body is called Brachial Plexus. It is a useful network of nerve fibers that supply musculature […]

Last modified on February 20th, 2018 at 6:16 am

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Picture of Hypoglossal Nerve

Hypoglossal Nerve

In the year 1800, Jean Léopold Nicolas Frédéric Cuvier known as the father of paleontology named the twelfth cranial nerve as the Hypoglossal Nerve (Cranial Nerve 12). The term Hypoglossal Nerve comes from the Greek word hypo which means “under” and the Greek word glossa that means “tongue”. The Hypoglossal Nerve (CN 12) innervates the […]

Last modified on February 15th, 2018 at 9:18 pm

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Picture of Trigeminal Nerve

Trigeminal Nerve

Trigeminal Nerve (Cranial Nerve 5) Definition The trigeminal nerve is the biggest and most intricate of the 12 cranial nerves. It is the 5th and most developed cranial nerve with a wide distribution mechanism. This is a mixed nerve performing a gamut of motor somatic and sensitive fibers linked to the face. Primarily, the nerve […]

Last modified on February 12th, 2018 at 12:25 pm

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Temporal Fossa Location

Temporal Fossa

Temporal Fossa Definition The Temporal Fossa is a shallow depression on the temporal region. It is the space on the side of the cranium held by temporal lines. It terminates below at the Zygomatic arch level. (more…)

Last modified on February 12th, 2018 at 10:25 am

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Picture of Facial Nerve

Facial Nerve

What is a Facial Nerve? The Facial Nerve, also known as the Cranial Nerve VII or the CN7 is the pathway of nerves that control the facial expressions. The facial nerves are composed of almost 10,000 neurons. Out of these, 7000 neurons are responsible for the various facial expressions we get to see in an […]

Last modified on February 10th, 2018 at 10:05 am

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Pectoralis Major Location

Pectoralis Major

What is the Pectoralis Major? The pectoralis major is a muscle that is situated in the chest region of the human body. It is a thick, fan-shaped muscle and is the most superficial one in the chest area. The bulk of the chest is made up of the pectoralis major which is why it is […]

Last modified on February 10th, 2018 at 7:45 am

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Optic Nerve Location

Optic Nerve

Optic Nerve Definition The optic nerve is the second nerve out of the twelve cranial nerves. It is a sensory paired nerve transmitting visual or sight information from the retina of the eye to the brain. The optic nerve carries the impulses from retina to the brain in the form of images. During the embryonic […]

Last modified on February 5th, 2018 at 5:59 am

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Image of Mediastinum

Mediastinum

Mediastinum Definition The mediastinum is an undefined anatomic space between the lungs that comprises a group of structures within the thorax and principal tissues of the chest excluding the lungs. It contains trachea (a section of the windpipe) heart, esophagus, cardiac nerves, phrenic, thymus, thoracic duct, and other important vessels including the aorta, which is […]

Last modified on February 5th, 2018 at 6:00 am

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Picture of Circle of Willis

Circle of Willis

The Circle of Willis is a part of the circulatory structure in the brain. It is named after Thomas Willis, the British physician. This structure is an anastomosis which is a link or a connection between two blood vessels. The Circle of Willis forms the vascular supply to the brain and the structures that surround […]

Last modified on February 5th, 2018 at 6:01 am

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Picture of Quadratus Lumborum

Quadratus Lumborum

What is Quadratus Lumborum? The Quadratus Lumborum is one of the deepest abdominal muscles and is commonly referred to as a back muscle. It is located in the posterior abdominal wall on either side of the lumbar spine and is irregular and quadrilateral in shape. The Quadratus Lumborum starts at the lowest rib and ends […]

Last modified on February 5th, 2018 at 6:01 am

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