Regional Anatomy Week 4 Quiz

Which muscle is only abductor of the vocal folds?

a. Lateral cricoarytenoid

b. Vocalis

c. Posterior cricoarytenoid

d. Thyroarytenoid

Posterior cricoarytenoid

The inferior border of the cricoid cartilage marks the

border between what two structures?

a. Trachea and pharynx
b. Larynx and trachea
c. Larynx and pharynx

d. Pharynx and esophagus

Larynx and trachea

What level is the larynx located at in an adult?

a. C3-C5

b. C3-C6

c. C3_С4

d. C3-C7

C3-C6

What nerve pierces the thyrohyoid membrane?

a. External laryngeal

b. Recurrent laryngeal

c. Internal laryngeal

d. Vagus

Internal laryngeal

The apex of the arytenoid cartilage articulates with what structure?

a. Thyroid cartilage
b. Epiglottis
c. Cricoid cartilage
d. Corniculate cartilage

Corniculate cartilage

What is the muscle that shortens & thickens the vocal folds to control the pitch of voice?

a. Transverse cricoarytenoid

b. Cricothyroid
c. Posterior cricoarytenoid

d. Thyroarytenoid

Thyroarytenoid

What structure does the inferior thyroid artery originate from?

a. Thyrocervical trunk
b. External carotid artery

c. Internal carotid artery

d. Thyroid ima

Thyrocervical trunk

Select which is correct in thyroid & parathyroid function.

a. Calcitonin is stimulated by falling blood Ca2+ and PHT is stimulated by rising blood Cal+ levels.

b. Calcitonin is stimulated by rising blood Ca2+ and PHT is stimulated by falling blood Ca2+ levels

c. PHT stimulates a decrease in Ca2+ in the intestines

d. Normal blood calcium levels is about 15mg/150ml

Calcitonin is stimulated by rising blood Ca2+ and PHT is stimulated by falling blood Ca2+ levels

What is the anatomical name for the false vocal cords?

1. Vocal fold (true vocal cord)

2. Vestibular fold

Vestibular fold

What muscle's motor function is supplied by the external laryngeal nerve?

a. Transverse arytenoid
b. Thyroarytenoid
c. Posterior cricoarytenoid

d. Cricothyroid

Cricothyroid

The muscular process of the arytenoid cartilage articulates to what two muscles?

a. Cricothyroid and transverse arytenoid

b. Posterior and lateral cricoarytenoid
c. Vocalis and thyroarytenoid
d. Lateral cricoarytenoid and transverse arytenoid

Posterior and lateral cricoarytenoid

Which muscle is an intrinsic laryngeal muscle?

a. Stylohyoid
b. Vocalis
c. Mylohyoid
d. Pharyngeal constrictors

Vocalis

Which nerve supplies sensory innervation from the laryngeal inlet to the vocal folds?

a. Inferior laryngeal nerve

b. Internal laryngeal nerve

c. External laryngeal nerve

d. Recurrent laryngeal nerve

Internal laryngeal nerve

Does the recurrent laryngeal nerve supply sensory innervation to structures above or below the vocal folds?

a. Above

b. Below

Below

Which answer best describes the arch of the cricoid cartilage?

a. Narrow and posterior

b. Narrow and anterior

c. Wide and posterior

d. Wide and anterior

Narrow and anterior