Stapedial Branch of Posterior Auricular Artery - Human Anatomy

Human Anatomy

In humans, the stapedial artery is normally present in the fetus where it connects what is to become the external and internal carotid arteries. Part of the carotid artery system, it originates from the dorsal branch of aortic arch. Its superior supraorbital branch becomes the middle meningeal artery, while its infraorbital and mandibular branches fuses with the external carotid artery and later become the internal maxillary artery. Its trunk atrophies and is replaced by branches from the external carotid artery.

In rare cases, the embryonic structure is still present after birth in which case it is referred to as a persistent stapedial artery (PSA). While the prevalence of this anomaly is unknown, it has been estimated to be present in 1 of 5.000 people.

Read more about this topic:  Stapedial Branch Of Posterior Auricular Artery

Other articles related to "human anatomy, anatomy, human, humans":

Human Anatomy - Approaches - Superficial Anatomy
... Superficial anatomy or surface anatomy is important in human anatomy being the study of anatomical landmarks that can be readily identified from the contours or other reference points on the ... With knowledge of superficial anatomy, physicians gauge the position and anatomy of deeper structures ... Common names of well known parts of the human body, from top to bottom Head – Forehead – Jaw – Cheek – Chin Neck – Shoulder Arm – Elbow – Wrist ...
Science And Inventions Of Leonardo Da Vinci - Natural Science - Human Anatomy - Dissection
... as an artist, he was given permission to dissect human corpses at the hospital Santa Maria Nuova in Florence ... Together with Marcantonio, he prepared to publish a theoretical work on anatomy and made more than 200 drawings ... Among the detailed images that Leonardo drew are many studies of the human skeleton ...
Biofeedback - Organizations - Certification
... the complete General Biofeedback Blueprint of Knowledge and study of human anatomy and physiology ... Applicants may demonstrate their knowledge of human anatomy and physiology by completing a course in human anatomy, human physiology, or human biology provided by a regionally-accredited ...
Anatomical Terms Of Location - Directional Terms - Medical (human) Directional Terms - Why Zootomy and Androtomy Terms Differ
... forward motion, the dorsal/ventral axis is oriented to the anatomy of the vertebrate torso, and the superior/inferior axis is oriented to gravity ... Humans, however, have the rare property of having a torso oriented perpendicular to their direction of forward motion—while their head orientation remains ... This makes the dorsal/ventral axis on humans redundant with the anterior/posterior axis, and the inferior/superior axis necessary ...

Famous quotes containing the words anatomy and/or human:

    Man is a shrewd inventor, and is ever taking the hint of a new machine from his own structure, adapting some secret of his own anatomy in iron, wood, and leather, to some required function in the work of the world.
    Ralph Waldo Emerson (1803–1882)

    Women generally should be taught that the rough life men must needs lead, in order to be healthy, useful and manly men, would preclude the possibility of a great degree of physical perfection, especially in color. It is not a bad reflection to know that in all probability the human animal has endowments enough without aspiring to be the beauty of all creation as well as the ruler.
    Caroline Nichols Churchill (1833–?)