A & P

Question 1

What is the only floating bone in body besides patella (knee cap)?

Answer 1

Hyoid Bone

Question 2

What is the leaf-like cartilage that acts as a protective structure when it inverts to cover the laryngeal opening during swallowing?

Answer 2

Epiglottis

Question 3

What is the largest of the laryngeal cartilages?

Answer 3

Thyroid Cartilage

Question 4

What ride on the high-backed upper surface of the cricoid cartilage, forming the posterior point of attachment for the vocal folds?

Answer 4

Arytenoid cartilages

Question 5

What sit at the apex of the arytenoid cartilages, horn-like shaped?

Answer 5

Corniculate cartilages

Question 6

What are paired wedge-shaped rods embedded within the aryepiglottic folds

Answer 6

Cuneiform Cartilages

Question 7

What is the complete ring sitting on top of the trachea, on lateral view it gives the appearance of a signet ring (back arches up relative to the front)?

Answer 7

Cricoid cartilage

Question 8

Name the 3 parts of the hyoid bone.

Answer 8

1. Greater horns
2. Lesser horns
3. Corpus (body)

Question 9

What do the 2 vocal processes on the arytenoids connect to?

Answer 9

Thyromuscularis and Thyrovocalis muscles

Question 10

Name the 5 layers of the vocal folds

Answer 10

1. Epithelium-Thin sheet of squamous
(Lamina Propria-which is comprised of three different tissues)
2. Superfical Layer
3. Intermediate Layer
4. Deep Layer
5. Thyroarytenoid muscle

Question 11

What are the ventricular folds?

Answer 11

a. k.a. false (vocal) folds, vestibular folds
- thick folds of mucous membrane
- above true vocal folds
- not used in normal phonation

Question 12

What 4 functions of the larynx are there?

Answer 12

1. RESPIRATION = breathing for life (open glottis)
2. PROTECTION with cough reflex: Close, then open glottis with help of respiratory system
3. PROTECTION during swallowing: Close glottis with help of respiratory system
4. PHONATION with voice: Close/open
   glottis and adjust vocal fold tension

Question 13

What 3 planes does the rib cage move on inspiration?

Answer 13

1. Vertical dimension is increased by the contraction of the dome-shaped diaphragm.
2. Transverse (side to side) dimension is increased by raising of the curved ribs.
3. Anterior-posterior dimension is increased by simultaneous forward and upward movement of the sternum.