1 / 37

Biology 323 Human Anatomy for Biology Majors Lecture 18 Dr. Stuart S. Sumida

Biology 323 Human Anatomy for Biology Majors Lecture 18 Dr. Stuart S. Sumida. From the Head to the Neck (or was it from the body to the neck?). Carotid Sheath: Carotid Artery Jugular Vein Vagus Nerve Do you remember what foramina these pass through?!. Superior Pharyngeal

bruis
Download Presentation

Biology 323 Human Anatomy for Biology Majors Lecture 18 Dr. Stuart S. Sumida

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Biology 323 Human Anatomy for Biology Majors Lecture 18 Dr. Stuart S. Sumida From the Head to the Neck (or was it from the body to the neck?)

  2. Carotid Sheath: • Carotid Artery • Jugular Vein • Vagus Nerve • Do you remember what foramina these pass through?!

  3. Superior Pharyngeal Constrictor (attaches to Pterygomandibular raphe’) Middle Pharyngeal Constrictor (attaches to Hyoid bone) Inferior Pharyngeal Constrictor (attaches to Thyroid and cricoid cartilages)

  4. Phonation(Speaking)

  5. Phonation & Articulation • Glottis closes • Recurrent laryngeal nerve from CN X • Air is forced through the glottis • Vocal folds vibrate and produce a constant tone (phonation) • Pitch of the tone depends on: • Diameter, length, tension of vocal folds (CN X)

  6. Glottis closed Epiglottis Vocal folds

  7. Sternothyroid (depresses larynx) Thyrohyoid (depresses hyoid or raises larynx) Geniohyoid (elevates hyoid or depresses jaw) Sternohyoid (depresses hyoid) “Strap” MusclesAid in Phonation Sternum

  8. X Pathways of the Vagus Nerve (CN X) Sensory Parasympathetic Jugular foramen Branchial Motor Hyoid bone Pharyngeal Constrictor Muscles Laryngeal Muscles Thyroid cartilage (Laryngeal cartilage) Cricoid cartilage Recurrent laryngeal nerve Esophagus

  9. Phonation & Articulation • The tone is articulated into voice. • Tone depends on: • Size and shape of the oropharynx and nasopharynx • Position of jaw (CN V3), tongue (CN XII), and lips (CN VII)

  10. Test yourself and identify the following structures…

  11. Anterior Posterior

  12. Anterior Posterior

  13. Posterior Anterior

More Related