449894
Descripción
Fichas por sophiakostich, actualizado hace más de 1 año
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Creado por sophiakostich
hace alrededor de 12 años
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| Pregunta | Respuesta |
| What is the name of the fascia in the neck that ensheaths the strap and SCM musles but is deep to platysma? | Investing fascia. |
| What are the three major compartments in the neck? What are the fascial layers surrounding them called? | Vertebral --> prevertebral fascia Visceral --> Pretracheal fascia Vascular --> carotid sheath |
| Which facial muscle is responsible for the look of horror? What nerve innervates it? | Platysma. Facial nerve (VII) |
| What is another name used for the strap muscles? | Infrahyoid muscles. |
| What is the function of the strap muscles? | Positioning larynx and trachea in neck. Depression of hyoid after swallowing. |
| What are the primary venous channels of the superficial neck? | External jugular and anterior jugular veins. |
| What two veins come to together posterior to the angle of the mandible to for the external jugular vein? | Posterior auricular vein and retromandibular vein. |
| Which vein does the external jugular vein drain into? | The subclavian vein. |
| A - submental triangle B - Submandibular triangle C - muscular triangle D - carotid triangle | |
| What structures make up the borders of the anterior triangle? | Anterior edge of SCM laterally. Inferior border of mandible superiorly. Midline of neck medially. |
| Name the four suprahyoid muscles. | Stylohyoid, digastric (anterior and posterior bellies), mylohyoid, geniohyoid. |
| Stylohyoid. Facial nerve. | |
| Mylohyoid inferiorly and geniohyoid on top. | |
| What's the origin, insertion and innervation of the geniohyoid muscle? | Origin - inferior mental spine on inner surface of mandible. Insertion - body of hyoid Innervation - branch from anterior ramus of C1 |
| Name the four infrahyoid/strap muscles. | Sternohyoid, omohyoid, sternothyroid, thyrohyoid. |
| What is the function of the infrahyoid muscles? Where do they insert? | Function - depress hyoid after swallowing. Insert - hyoid bone |
| What is the innervation of the SCM? | Spinal accessory nerve. |
| What provides the innervation to the infrahyoid muscles? | The ansa cervicalis. |
| Thyrohyoid muscle. Origin - thyroid cartilage Insertion - hyoid bone | |
| Where does the common carotid artery originate on the left and right? | Right - from brachiocephalic trunk Left - from aorta |
| Where in the neck does the common carotid artery bifurcate? What does it bifurcate into? | Bifurcates at superior border of thyroid cartilage into external carotid and internal carotid arteries. |
| From superior to inferior: Maxillary, occipital, ascending pharyngeal, superior thyroid | |
| What are the two terminal branches of the ECA? | Maxillary and superficial temporal arteries. |
| Name the four nerves which pass through the anterior triangle? | Glossopharyngeal nerve (IX), Facial nerve (VII), Vagus nerve (X), Accessory nerve (XI) |
| Vagus nerve (X) | |
| Which two vessels supply the thyroid gland? | Superior thyroid artery from the ECA. Inferior thyroid artery from thyrocervical trunk (from subclavian). |
| Name the two smaller triangles of the posterior triangle of the neck. | Occipital triangle superiorly and omoclavicular or subclavian triangle inferiorly |
| What structures form the borders of the posterior triangle of the neck? | Anterior border - posterior edge of SCM Posterior border - anterior edge of trapezius Inferior border - middle third of clavicle |
| What is the origin of the SCM? | Origin of sternal head - upper part of anterior surface of manubrium Origin of clavicular head - superior surface of medial third of clavicle |
| What is the insertion of the SCM? | Insertion of sternal head - lateral half of super nuchal line Insertion of clavicular head - lateral surface of mastoid process |
| Which two major vessels pass through the posterior triangle? | External jugular vein and subclavian |
| What nerve passes through the posterior triangle? It also innervates trapezius and SCM. | Spinal accessory nerve (XI) |
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