human anatomy chapter 10 part 2

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1

which muscle is the muscle that elevates the ribs?

internal intercostal

2

A four-month old infant wrinkles the brow to study a new toy. What muscles is the infant contracting?

corrugator supercilii

3

Which of the following does NOT insert on the hyoid?

sternothyroid

4

John is sitting with Marcy on his left and Abby on his right, and he contracts his left lateral rectus and his right medial rectus eye muscles. Which person is he looking at?

marcy

5

What would be the result if the muscles of the pharyngeal constrictors were damaged?

It would be difficult to push food from the pharynx into the esophagus.

6

The digastric muscle __________.

is innervated by the trigeminal nerve (V) and facial nerve (VII)

7

The fibers of the iliocostalis muscle are divided into which three regions?

lumbar, thoracic, and cervical

8

The buccinator muscle is innervated by the

facial nerve

9

At its insertion (unlike at its origin), the buccinator muscle __________.

attaches to fibers of another facial muscle

10

The buccinator muscle __________.

compresses the cheeks

11

The entire length of longissimus muscle extends from the mastoid process of the temporal bone to the __________.

sacrum

12

The masseter muscle originates on the __________.

medial surfaces of the maxilla and the zygomatic arch as well as the inferior border of the zygomatic arch

13

The masseter is innervated by the _____________ branch of the trigeminal nerve.

mandicular