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Ch. 9 The Muscular System
Amerman - Human Anatomy & Physiology 2nd Edition
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822Not the one you use?Change textbook
All textbooksAmerman 2nd EditionCh. 9 The Muscular SystemProblem 6b
Chapter 9, Problem 6b

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.
The orbicularis oris muscle is located around the eye.

Verified step by step guidance
1
Step 1: Understand the anatomy of the orbicularis oris muscle. The orbicularis oris is a circular muscle located around the mouth, not the eye. It is responsible for movements such as puckering the lips.
Step 2: Compare the orbicularis oris muscle with the orbicularis oculi muscle. The orbicularis oculi is the circular muscle located around the eye, responsible for closing the eyelids.
Step 3: Evaluate the statement provided. The statement claims that the orbicularis oris muscle is located around the eye, which is anatomically incorrect.
Step 4: Correct the false statement. The corrected statement should read: 'The orbicularis oris muscle is located around the mouth.'
Step 5: Confirm the accuracy of the correction by reviewing anatomical references or diagrams to ensure proper understanding of muscle locations.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Orbicularis Oris Muscle

The orbicularis oris is a complex muscle that encircles the mouth. It is responsible for movements such as closing the lips, puckering, and shaping the lips during speech. This muscle plays a crucial role in facial expressions and oral functions, distinguishing it from other facial muscles.
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Anatomical Location

Anatomical location refers to the specific position of structures within the body. Understanding the correct location of muscles like the orbicularis oris is essential for studying human anatomy. In this case, the orbicularis oris is located around the mouth, not the eye, highlighting the importance of precise anatomical terminology.
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True or False Statements

True or false statements are assertions that can be evaluated for their accuracy. In the context of anatomy, these statements help reinforce knowledge by requiring students to identify correct information. Correcting false statements, as in the provided question, aids in reinforcing learning and understanding of anatomical facts.
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Related Practice
Textbook Question

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

The main action of the zygomaticus major and minor muscles is to pull the corners of the mouth up to produce smiling.

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Textbook Question

The action of the biceps brachii muscle on the hinge joint of the elbow is an example of which kind of lever system?

a. First class

b. Second class

c. Third class

d. Fourth class

833
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Textbook Question

Which eye muscle passes through the trochlea and turns the eye inferiorly and laterally?

a. Lateral rectus muscle

b. Inferior rectus muscle

c. Inferior oblique muscle

d. Superior oblique muscle

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Textbook Question

Which function is being fulfilled by a muscle that holds a bone steady during movement?

a. Antagonist

b. Synergist

c. Supinator

d. Fixator

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Textbook Question

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

The buccinator muscle pulls the cheeks in, producing sucking movements.

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Textbook Question

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

The temporalis and occipitalis muscles are attached to each other by the epicranial aponeurosis.

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