_____ 1. Which cranial nerve is responsible for innervating the intrinsic and extrinsic tongue muscles? a. accessory (CN XI) b. glossopharyngeal (CN IX) c. trigeminal (CN V) d. hypoglossal (CN XII)

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 13, Problem 1DYKB

_____ 1. Which cranial nerve is responsible for innervating the intrinsic and extrinsic tongue muscles?

a. accessory (CN XI)
b. glossopharyngeal (CN IX)
c. trigeminal (CN V)
d. hypoglossal (CN XII)

Expert Solution & Answer

Summary Introduction

Introduction:

There are 12 pairs of cranial nerves which originate towards the inferior surface of the brain. The cranial nerves are a part of the peripheral nervous system. The naming of cranial nerves is based on the positions. The naming begins from the anteriorly placed nerves.

Answer to Problem 1DYKB

Correct answer:

The hypoglossal nerve innervates intrinsic tongue muscle as well as the extrinsic tongue muscles. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Option d. is given as “hypoglossal (CN XII)”. There are nine pairs of cranial nerves which have somatic functions with the autonomic or sensory roles. The CN XII has only somatic motor function. This nerve innervates the extrinsic and intrinsic tongue muscles. Hence, intrinsic and extrinsic tongue muscles are innervated by hypoglossal or CN XII.

Hence, option d. is correct.

Reasons for incorrect statements:

Option a. is given as “accessory (CN XI)”. CN XI innervates the sternocleidomastoid and trapezius muscles. Hence, option a. is incorrect.

Option b. is given as “glossopharyngeal (CN IX)”. CN IX receives touch and taste sensation from one-third of the tongue and also innervates the parotid salivary gland and pharynx muscles. Hence, option b. is incorrect.

Option c. is given as “trigeminal (CN V)”. CN V innervates the muscles of mastication and receives sensory signals from the anterior scalp, meninges, nasal cavity, oral cavity, and face. Hence, option c. is incorrect.

Hence, options a., b., and c. are incorrect.

Conclusion

The hypoglossal nerve innervates the extrinsic and intrinsic muscles of the tongue.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

After you feel comfortable with your counting method and identifying cells in the various stages of mitosis, use the four images below of whitefish blastula to count the cells in each stage until you reach 100 total cells, recording your data below in Data Table 1. (You may not need to use all four images. Stop counting when you reach 100 total cells.) After totaling the cells in each stage, calculate the percent of cells in each stage. (Divide total of stage by overall total of 100 and then multiply by 100 to obtain percentage.) Data Table 1Stage Totals PercentInterphase Mitosis: Prophase Metaphase Anaphase Telophase Cytokinesis Totals 100 100% To find the length of time whitefish blastula cells spend in each stage, multiply the percent (recorded as a decimal, in other words take the percent number and divide by 100) by 24 hours. (Example: If percent is 20%, then Time in Hours = .2 * 24 = 4.8) Record your data in Data…

What are Clathrin coated vesicles and what is their function?

How is a protein destined for the Endoplasmic Reticulum (ER), imported into the ER? Be concise.

Answer 2

Textbook Question

Chapter 13, Problem 1DYKB

_____ 1. Which cranial nerve is responsible for innervating the intrinsic and extrinsic tongue muscles?

a. accessory (CN XI)
b. glossopharyngeal (CN IX)
c. trigeminal (CN V)
d. hypoglossal (CN XII)

Expert Solution & Answer

Summary Introduction

Introduction:

There are 12 pairs of cranial nerves which originate towards the inferior surface of the brain. The cranial nerves are a part of the peripheral nervous system. The naming of cranial nerves is based on the positions. The naming begins from the anteriorly placed nerves.

Answer to Problem 1DYKB

Correct answer:

The hypoglossal nerve innervates intrinsic tongue muscle as well as the extrinsic tongue muscles. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Option d. is given as “hypoglossal (CN XII)”. There are nine pairs of cranial nerves which have somatic functions with the autonomic or sensory roles. The CN XII has only somatic motor function. This nerve innervates the extrinsic and intrinsic tongue muscles. Hence, intrinsic and extrinsic tongue muscles are innervated by hypoglossal or CN XII.

Hence, option d. is correct.

Reasons for incorrect statements:

Option a. is given as “accessory (CN XI)”. CN XI innervates the sternocleidomastoid and trapezius muscles. Hence, option a. is incorrect.

Option b. is given as “glossopharyngeal (CN IX)”. CN IX receives touch and taste sensation from one-third of the tongue and also innervates the parotid salivary gland and pharynx muscles. Hence, option b. is incorrect.

Option c. is given as “trigeminal (CN V)”. CN V innervates the muscles of mastication and receives sensory signals from the anterior scalp, meninges, nasal cavity, oral cavity, and face. Hence, option c. is incorrect.

Hence, options a., b., and c. are incorrect.

Conclusion

The hypoglossal nerve innervates the extrinsic and intrinsic muscles of the tongue.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 13, Problem 1DYKB

_____ 1. Which cranial nerve is responsible for innervating the intrinsic and extrinsic tongue muscles?

a. accessory (CN XI)
b. glossopharyngeal (CN IX)
c. trigeminal (CN V)
d. hypoglossal (CN XII)

Expert Solution & Answer

Summary Introduction

Introduction:

There are 12 pairs of cranial nerves which originate towards the inferior surface of the brain. The cranial nerves are a part of the peripheral nervous system. The naming of cranial nerves is based on the positions. The naming begins from the anteriorly placed nerves.

Answer to Problem 1DYKB

Correct answer:

The hypoglossal nerve innervates intrinsic tongue muscle as well as the extrinsic tongue muscles. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Option d. is given as “hypoglossal (CN XII)”. There are nine pairs of cranial nerves which have somatic functions with the autonomic or sensory roles. The CN XII has only somatic motor function. This nerve innervates the extrinsic and intrinsic tongue muscles. Hence, intrinsic and extrinsic tongue muscles are innervated by hypoglossal or CN XII.

Hence, option d. is correct.

Reasons for incorrect statements:

Option a. is given as “accessory (CN XI)”. CN XI innervates the sternocleidomastoid and trapezius muscles. Hence, option a. is incorrect.

Option b. is given as “glossopharyngeal (CN IX)”. CN IX receives touch and taste sensation from one-third of the tongue and also innervates the parotid salivary gland and pharynx muscles. Hence, option b. is incorrect.

Option c. is given as “trigeminal (CN V)”. CN V innervates the muscles of mastication and receives sensory signals from the anterior scalp, meninges, nasal cavity, oral cavity, and face. Hence, option c. is incorrect.

Hence, options a., b., and c. are incorrect.

Conclusion

The hypoglossal nerve innervates the extrinsic and intrinsic muscles of the tongue.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 13, Problem 1DYKB

_____ 1. Which cranial nerve is responsible for innervating the intrinsic and extrinsic tongue muscles?

a. accessory (CN XI)
b. glossopharyngeal (CN IX)
c. trigeminal (CN V)
d. hypoglossal (CN XII)

Expert Solution & Answer

Summary Introduction

Introduction:

There are 12 pairs of cranial nerves which originate towards the inferior surface of the brain. The cranial nerves are a part of the peripheral nervous system. The naming of cranial nerves is based on the positions. The naming begins from the anteriorly placed nerves.

Answer to Problem 1DYKB

Correct answer:

The hypoglossal nerve innervates intrinsic tongue muscle as well as the extrinsic tongue muscles. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Option d. is given as “hypoglossal (CN XII)”. There are nine pairs of cranial nerves which have somatic functions with the autonomic or sensory roles. The CN XII has only somatic motor function. This nerve innervates the extrinsic and intrinsic tongue muscles. Hence, intrinsic and extrinsic tongue muscles are innervated by hypoglossal or CN XII.

Hence, option d. is correct.

Reasons for incorrect statements:

Option a. is given as “accessory (CN XI)”. CN XI innervates the sternocleidomastoid and trapezius muscles. Hence, option a. is incorrect.

Option b. is given as “glossopharyngeal (CN IX)”. CN IX receives touch and taste sensation from one-third of the tongue and also innervates the parotid salivary gland and pharynx muscles. Hence, option b. is incorrect.

Option c. is given as “trigeminal (CN V)”. CN V innervates the muscles of mastication and receives sensory signals from the anterior scalp, meninges, nasal cavity, oral cavity, and face. Hence, option c. is incorrect.

Hence, options a., b., and c. are incorrect.

Conclusion

The hypoglossal nerve innervates the extrinsic and intrinsic muscles of the tongue.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

There are 12 pairs of cranial nerves which originate towards the inferior surface of the brain. The cranial nerves are a part of the peripheral nervous system. The naming of cranial nerves is based on the positions. The naming begins from the anteriorly placed nerves.

Answer to Problem 1DYKB

Correct answer:

The hypoglossal nerve innervates intrinsic tongue muscle as well as the extrinsic tongue muscles. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Option d. is given as “hypoglossal (CN XII)”. There are nine pairs of cranial nerves which have somatic functions with the autonomic or sensory roles. The CN XII has only somatic motor function. This nerve innervates the extrinsic and intrinsic tongue muscles. Hence, intrinsic and extrinsic tongue muscles are innervated by hypoglossal or CN XII.

Hence, option d. is correct.

Reasons for incorrect statements:

Option a. is given as “accessory (CN XI)”. CN XI innervates the sternocleidomastoid and trapezius muscles. Hence, option a. is incorrect.

Option b. is given as “glossopharyngeal (CN IX)”. CN IX receives touch and taste sensation from one-third of the tongue and also innervates the parotid salivary gland and pharynx muscles. Hence, option b. is incorrect.

Option c. is given as “trigeminal (CN V)”. CN V innervates the muscles of mastication and receives sensory signals from the anterior scalp, meninges, nasal cavity, oral cavity, and face. Hence, option c. is incorrect.

Hence, options a., b., and c. are incorrect.

Conclusion

The hypoglossal nerve innervates the extrinsic and intrinsic muscles of the tongue.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

There are 12 pairs of cranial nerves which originate towards the inferior surface of the brain. The cranial nerves are a part of the peripheral nervous system. The naming of cranial nerves is based on the positions. The naming begins from the anteriorly placed nerves.

Answer to Problem 1DYKB

Correct answer:

The hypoglossal nerve innervates intrinsic tongue muscle as well as the extrinsic tongue muscles. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Option d. is given as “hypoglossal (CN XII)”. There are nine pairs of cranial nerves which have somatic functions with the autonomic or sensory roles. The CN XII has only somatic motor function. This nerve innervates the extrinsic and intrinsic tongue muscles. Hence, intrinsic and extrinsic tongue muscles are innervated by hypoglossal or CN XII.

Hence, option d. is correct.

Reasons for incorrect statements:

Option a. is given as “accessory (CN XI)”. CN XI innervates the sternocleidomastoid and trapezius muscles. Hence, option a. is incorrect.

Option b. is given as “glossopharyngeal (CN IX)”. CN IX receives touch and taste sensation from one-third of the tongue and also innervates the parotid salivary gland and pharynx muscles. Hence, option b. is incorrect.

Option c. is given as “trigeminal (CN V)”. CN V innervates the muscles of mastication and receives sensory signals from the anterior scalp, meninges, nasal cavity, oral cavity, and face. Hence, option c. is incorrect.

Hence, options a., b., and c. are incorrect.

Conclusion

The hypoglossal nerve innervates the extrinsic and intrinsic muscles of the tongue.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

There are 12 pairs of cranial nerves which originate towards the inferior surface of the brain. The cranial nerves are a part of the peripheral nervous system. The naming of cranial nerves is based on the positions. The naming begins from the anteriorly placed nerves.

Answer 12

Answer to Problem 1DYKB

Correct answer:

The hypoglossal nerve innervates intrinsic tongue muscle as well as the extrinsic tongue muscles. Therefore, option d. is correct.

Answer 13

Explanation of Solution

Reason for the correct statement:

Option d. is given as “hypoglossal (CN XII)”. There are nine pairs of cranial nerves which have somatic functions with the autonomic or sensory roles. The CN XII has only somatic motor function. This nerve innervates the extrinsic and intrinsic tongue muscles. Hence, intrinsic and extrinsic tongue muscles are innervated by hypoglossal or CN XII.

Hence, option d. is correct.

Reasons for incorrect statements:

Option a. is given as “accessory (CN XI)”. CN XI innervates the sternocleidomastoid and trapezius muscles. Hence, option a. is incorrect.

Option b. is given as “glossopharyngeal (CN IX)”. CN IX receives touch and taste sensation from one-third of the tongue and also innervates the parotid salivary gland and pharynx muscles. Hence, option b. is incorrect.

Option c. is given as “trigeminal (CN V)”. CN V innervates the muscles of mastication and receives sensory signals from the anterior scalp, meninges, nasal cavity, oral cavity, and face. Hence, option c. is incorrect.

Hence, options a., b., and c. are incorrect.