Muscles of the External Ear

Q: Muscles of the ear can be grouped into one of the three major groups: rostral auricular muscle, caudal auricular muscle, and ……

A. Extraocular muscle

B. Ventral auricular muscle

C. Facial muscle

D. Orbital muscle

B. Ventral auricular muscle

Q: The …… lie on the forehead caudal to the orbit and converge toward the auricular cartilage.

A. Caudal auricular muscles

B. Rostral auricular muscles

C. Ventral auricular muscles

D. Extraocular muscles

B. Rostral auricular muscles

Q: The rostral auricular muscles act to turn the conchal fissures rostrally, stabilize the scutular cartilage, and ……

A. Erect the concha

B. Draw the external ear caudally and ventrally

C. Stabilize the pinna and make the ear rigid

D. Support the scutular cartilage

C. Stabilize the pinna and make the ear rigid

Q: The …… is the largest of the ear muscle groups, with most arising from the dorsal median raphe of the head.

A. Rostral auricular muscle

B. Caudal auricular muscle

C. Ventral auricular muscle

D. Paratidoauricularis

B. Caudal auricular muscle

Q: The caudal auricular muscles act to support the scutular cartilage, turn the conchal fissure in several directions, and ……

A. Erect the concha

B. Draw the external ear caudally and ventrally

C. Turn the conchal fissures rostrally

D. Cover the parotid gland

A. Erect the concha

Q: The …… includes the paratidoauricularis and forms the caudal-most portion of the deep sphincter of the neck.

A. Rostral auricular muscle

B. Caudal auricular muscle

C. Ventral auricular muscle

D. Levator anguli oculi medialis

C. Ventral auricular muscle

Q: The ventral auricular muscles cover the parotid gland and contract to ……

A. Turn the conchal fissures rostrally

B. Erect the concha

C. Draw the external ear caudally and ventrally

D. Stabilize the pinna and make the ear rigid

C. Draw the external ear caudally and ventrally