slide1
Download
Skip this Video
Download Presentation
Biology 323 Human Anatomy for Biology Majors Lecture 18 Dr. Stuart S. Sumida

Loading in 2 Seconds...

play fullscreen
1 / 37

Biology 323 Human Anatomy for Biology Majors Lecture 18 Dr. Stuart S. Sumida - PowerPoint PPT Presentation


  • 134 Views
  • Uploaded on

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

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Biology 323 Human Anatomy for Biology Majors Lecture 18 Dr. Stuart S. Sumida' - bruis


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

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?)

slide11

Carotid Sheath:

  • Carotid Artery
  • Jugular Vein
  • Vagus Nerve
  • Do you remember what foramina these pass through?!
slide19

Superior Pharyngeal

Constrictor (attaches to

Pterygomandibular raphe’)

Middle Pharyngeal

Constrictor (attaches to

Hyoid bone)

Inferior Pharyngeal

Constrictor (attaches to

Thyroid and cricoid cartilages)

phonation articulation
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)
slide30

Glottis

closed

Epiglottis

Vocal folds

strap muscles aid in phonation

Sternothyroid

(depresses larynx)

Thyrohyoid

(depresses hyoid or

raises larynx)

Geniohyoid

(elevates hyoid or

depresses jaw)

Sternohyoid

(depresses hyoid)

“Strap” MusclesAid in Phonation

Sternum

slide32

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

phonation articulation1
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)
slide35

Anterior

Posterior

slide36

Anterior

Posterior

slide37

Posterior

Anterior

ad