Muscles

Question 1

What are the intrinsic muscles of the larynx?

Answer 1

-Cricoarytenoideus dorsalis
-Cricoarytenoideus lateralis
-Cricothyroideus
-Thyroarytenoideus

Question 2

What does the cricothyroideus muscle do?

Answer 2

Tenses vocal fold

Question 3

Where is the cricothyroideus attach?

Answer 3

Cricoid cartilage to the thyroid lamina

Question 4

What is the cricothyroid muscle innervated by?

Answer 4

Cranial laryngeal nerve (branch of vagus)

Question 5

What does the cricoarytenoideus dorsalis do?

Answer 5

Opens the glottis, abduction of the vocal fold

Question 6

Where are the attachments of the CAD muscle?

Answer 6

Dorsolateral surface of cricoid cartilage to the muscular process of arytenoid cartilage

Question 7

What are the muscles of mastication?

Answer 7

Temporalis
Masseter
Pterygoid
Digastricus

Question 8

What are the attachments of the temporalis and function? Innervated by?

Answer 8

-Temporal fossa –> coronoid process of mandible
-Close jaw
-Trigeminal/CN5

Question 9

What are attachments of masseter? Function? Innervation?

Answer 9

-Zygomatic arch –> ramus of mandible
-Close jaw
-Trigeminal/ CN5

Question 10

What are attachments of pterygoid? Function? Innervated by?

Answer 10

Pterygopalatine fossa –> Ramus of mandible
Close jaw
Trigeminal/CN5

Question 11

Digastricus attachment? Innervation? Function?

Answer 11

Paracondylar process of occipital bone –> body of mandible
Open jaw
Caudal: CN7 (Facial)
Rostral: Trigeminal, CN5