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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 6c
Chapter 9, Problem 6c

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.

Verified step by step guidance
1
Step 1: Begin by identifying the muscles mentioned in the statement. The temporalis muscle is located on the side of the head and is involved in chewing, while the occipitalis muscle is located at the back of the head and contributes to scalp movement.
Step 2: Understand the role of the epicranial aponeurosis. It is a broad, flat tendon that connects the frontalis muscle (on the forehead) to the occipitalis muscle (on the back of the head). It does not connect the temporalis muscle to the occipitalis muscle.
Step 3: Evaluate the accuracy of the statement. Since the temporalis muscle is not connected to the occipitalis muscle via the epicranial aponeurosis, the statement is false.
Step 4: Correct the false statement. The true statement should be: 'The occipitalis muscle is attached to the frontalis muscle by the epicranial aponeurosis.'
Step 5: Review the corrected statement and ensure it aligns with anatomical knowledge of the epicranial aponeurosis and the muscles it connects.

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Key Concepts

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

Temporalis Muscle

The temporalis muscle is a fan-shaped muscle located on the side of the head, responsible for elevating and retracting the mandible during chewing. It is one of the primary muscles involved in mastication and plays a crucial role in jaw movement.
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Occipitalis Muscle

The occipitalis muscle is located at the back of the head and is part of the epicranius muscle group. It functions to pull the scalp backward and is involved in facial expressions, particularly in conjunction with the frontalis muscle, which raises the eyebrows.
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Epicranial Aponeurosis

The epicranial aponeurosis is a fibrous tissue structure that connects the frontalis and occipitalis muscles, forming a layer over the skull. It acts as a tendon for these muscles, allowing for coordinated movement of the scalp and contributing to facial expressions.
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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

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

The thick, bandlike muscle of mastication that covers much of the ramus of the mandible is the:

a. masseter muscle.

b. temporalis muscle.

c. lateral pterygoid muscle.

d. risorius muscle.

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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 orbicularis oris muscle is located around the eye.

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