Laryngeal Joints & Membranes, and Ligaments #1 Flashcards
1
Q
What are the 2 laryngeal joints we learned about?
A
- Cricothyroid joint
- Cricoarytenoid joint
2
Q
Describe the Cricothyroid joint. (type of joint and function)
A
- Synovial (diarthroidial joint) that allows the thyroid to tilt downward. This stretches and tenses the vocal folds.
- Joint provides the major adjustments for change in vocal pitch.
3
Q
Cricoarytenoid joint function
A
- Involved in adduction and abduction of vocal folds
4
Q
What kind of joint is the cricoarytenoid joint?
Describe its articulation.
A
- Synovial joint (Saddle joint) allowing for rocking, gliding, and minimal rotation
- concave portion of arytenoids articulates with convex portion of cricoid lamina
5
Q
List the categories of Laryngeal Membranes and Ligaments.
A
- Extrinsic laryngeal membranes and ligaments
- Intrinsic laryngeal membranes and ligaments
6
Q
List the Extrinsic laryngeal membranes and ligaments.
A
- Thyrohyoid membrane/hyothyroid
- Hyoepiglottic ligament
- thyroepiglottic ligament
- cricotracheal membrane
7
Q
Label The Extrinsic Laryngeal Membranes & Ligaments
A
A - Thyrohyoid Membrane
B - Hyoepiglottic Ligament
C - Thyroepiglottic Ligament
D - Cricotracheal Membrane
8
Q
Describe the extrinsic laryngeal membranes and ligaments.
A
- A group of membranes and ligaments that connect the cartilages of the larynx to each other and to the hyoid bone and trachea
9
Q
What does the thyrohyoid (hyothyroid) membrane connect?
A
- Connects hyoid bone to thyroid cartilage
10
Q
What does the hyoepiglottic ligament connect?
A
- Connects epiglottis to the hyoid bone
11
Q
What does the thyroepiglottic ligament connect?
A
- Connects the epiglottis to the thyroid
12
Q
What does the cricotracheal membrane connect?
A
- Connects the cricoid cartilage to the first tracheal ring
