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Related Concept Videos

Arteries of the Head and Neck01:26

Arteries of the Head and Neck

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The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
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Veins of Head and Neck01:19

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The blood drainage from the head and neck is primarily managed by three pairs of veins: the external jugular, internal jugular, and vertebral veins. The external jugular veins drain superficial scalp and face structures, passing over the sternocleidomastoid muscles to empty into the subclavian veins.
On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...
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Muscles of the Anterior Neck01:26

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The anterior neck muscles are the group of muscles covering the front part of the neck. These muscles are classified into three subgroups. The first one is the superficial muscles, the most visible muscles in the front of the neck. It includes the platysma and sternocleidomastoid. The second group is the suprahyoid muscles, located above the hyoid bone. This group comprises the digastric, mylohyoid, geniohyoid, and stylohyoid. Lastly, the infrahyoid muscles are found below the hyoid bone and...
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Muscles that Move the Head01:19

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The muscles that move the head are a dynamic and complex group of structures that work together to facilitate a wide range of head movements, including rotation, flexion, extension, and lateral bending.
The bilateral sternocleidomastoid, or SCM, and the suprahyoid and infrahyoid muscles are significant head flexors. The SCM muscles originate at the sternum and clavicle and attach to the mastoid process of the temporal bone. The SCM contracts bilaterally to bend the head forward, whereas...
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Atomic Mass01:52

Atomic Mass

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Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 × 10−23 g. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu). The amu was originally defined based on hydrogen, the lightest element, then later in terms of oxygen. Since 1961, it has been defined with regard to the most abundant isotope of carbon, atoms of which...
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Molar Mass01:54

Molar Mass

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The identity of a substance is defined not only by the types of atoms or ions it contains but by the quantity of each type of atom or ion. For example, water, H2O, and hydrogen peroxide, H2O2, are alike in that their respective molecules are composed of hydrogen and oxygen atoms. However, because a hydrogen peroxide molecule contains two oxygen atoms, as opposed to the water molecule, which has only one, the two substances exhibit very different properties.
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Porcine As a Training Module for Head and Neck Microvascular Reconstruction
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Head and Neck Masses.

Kenneth Yan1, Nishant Agrawal1, Zhen Gooi1

  • 1Section of Otolaryngology, Department of Surgery, University of Chicago Medicine, Chicago, IL, USA.

The Medical Clinics of North America
|October 22, 2018
PubMed
Summary
This summary is machine-generated.

Head and neck cancers are a significant health concern, often presenting with subtle symptoms like neck masses or hoarseness. Early detection by internists is crucial for better patient outcomes.

Keywords:
Cutaneous head and neck cancerHead and neck cancerHypopharyngeal cancerLaryngeal cancerMelanomaNasopharyngeal cancerOral cancerOropharyngeal cancer

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Area of Science:

  • Oncology
  • Internal Medicine

Background:

  • Head and neck cancers represent 4% of the US cancer burden annually.
  • Many cases are asymptomatic or present with nonspecific symptoms, leading to delayed diagnosis.

Purpose of the Study:

  • To increase internist awareness of common head and neck cancers.
  • To facilitate earlier detection through understanding epidemiology, clinical signs, diagnosis, and treatment.

Main Methods:

  • This is a review article.
  • It synthesizes information on epidemiology, clinical manifestations, diagnosis, and treatment.

Main Results:

  • Head and neck cancers often manifest as asymptomatic neck masses or nonspecific symptoms (hoarseness, sore throat, pain).
  • Incidental diagnosis by primary care physicians and dentists is common.

Conclusions:

  • Enhanced internist awareness of head and neck cancer signs and symptoms is vital.
  • Early detection strategies should be prioritized for improved patient prognosis.