Branchiomeric Muscles Of A Cat

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Companatomy

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1/13 Questions

The masseter muscle is responsible for elevation of the ____________ . (specific bone)

About This Quiz

This quiz is designed to help students recognize the branchiomeric muscles of a cat. It will also help them learn the origins, insertions, and actions of these muscles.

2.

The muscle labeled "A" is the ________ muscle.

Explanation
The muscle labeled "A" is the digastric muscle. The digastric muscle is a paired muscle located in the neck and is named for its two bellies. It is responsible for opening the mouth and depressing the mandible, as well as elevating the hyoid bone during swallowing and speaking.

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3.

This muscle is the most posterior of the trapezius group:

Explanation
The spinotrapezius muscle is the most posterior muscle in the trapezius group. The trapezius group consists of three muscles: the spinotrapezius, acromiotrapezius, and clavotrapezius. The spinotrapezius muscle is located at the posterior aspect of the trapezius group, making it the furthest back. It originates from the spinous processes of the thoracic vertebrae and inserts onto the spine of the scapula. Its main function is to retract and stabilize the scapula.

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4.

The clavotrapezius, labeled "A" in the picture above, protracts the __________ .(specific bone)

Explanation
The clavotrapezius muscle, labeled "A" in the picture, is responsible for protracting the humerus bone. Protraction refers to moving the bone forward or bringing it closer to the midline of the body. Therefore, the clavotrapezius muscle plays a role in moving the humerus bone forward.

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5.

The ___________ muscle, which is responsible for turning the head while the clavicle is stationary, is located dorsolateral to the sternomastoid.

Explanation
The cleidomastoid muscle is responsible for turning the head while the clavicle is stationary. It is located dorsolateral to the sternomastoid muscle.

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6.

True or false: The masseter and the temporalis both work toward the same action.
- True
- False
Correct Answer

A. True

Explanation

true- they both work toward elevating the mandible

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7.

ID the muscle labeled "B" in the picture.
- Temporalis
- Digastric
- Masseter
- Pterygoideus Externus
Correct Answer

A. Masseter

Explanation

The correct answer is Masseter. The muscle labeled "B" in the picture is the masseter muscle. The masseter is a powerful muscle located in the jaw region. It is responsible for closing the jaw and is one of the main muscles involved in chewing.

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8.

The insertion of the cleidomastoid is the:
- Hyoid bone
- Thyroid cartilage of the larynx
- Mastoid process of the temporal bone
- Dorsal border of the scapula
Correct Answer

A. Mastoid process of the temporal bone

Explanation

The insertion of the cleidomastoid muscle is the mastoid process of the temporal bone. The cleidomastoid muscle originates from the clavicle and inserts into the mastoid process. This muscle is responsible for various movements of the head and neck, including rotation and lateral flexion. The mastoid process is a bony prominence located behind the ear, and it provides a strong attachment point for the cleidomastoid muscle.

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9.

ID the muscle labeled "B" and give its action.
- Mylohyoid; protracts the hyoid
- Mylohyoid; elevates the floor of the mouth
- Digastric; retracts the hyoid
- Digastric; elevates the floor of the mouth
Correct Answer

A. Mylohyoid; elevates the floor of the mouth

Explanation

The correct answer is Mylohyoid; elevates the floor of the mouth. The mylohyoid muscle is responsible for elevating the floor of the mouth, which helps in actions such as swallowing and speaking. It forms the floor of the oral cavity and supports the tongue.

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10.

ID the muscle labeled "E" in the picture above.
- Cleidomastoid
- Sternomastoid
- Digastric
- Sternohyoid
Correct Answer

A. Sternomastoid

Explanation

The muscle labeled "E" in the picture is the sternomastoid muscle. This muscle is located in the neck and runs from the sternum and clavicle to the mastoid process of the skull. It is responsible for various movements of the head and neck, including rotation and flexion. The sternomastoid muscle is easily identifiable due to its prominent location and shape.

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11.

The muscle labeled "E" in the picture above is responsible for this action:
- Pulling the scapula dorsally and caudally
- Pulling the forelimb dorsocaudally
- Flexing the forearm
- Pulling the ribs in cranially
Correct Answer

A. Pulling the scapula dorsally and caudally

Explanation

The muscle labeled "E" in the picture is responsible for pulling the scapula dorsally and caudally. This means that the muscle is involved in moving the scapula in a direction towards the back and tail. It does not have any role in pulling the forelimb dorsocaudally, flexing the forearm, or pulling the ribs in cranially.

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12.

Choose the correct function of the muscle labeled "C"
- Pulls the scapula dorsally and caudally
- Flexes the forearm
- Adduct and stabilize the position of the scapulae
- Pulls forelimb dorsocaudally
Correct Answer

A. Adduct and stabilize the position of the scapulae

Explanation

The correct function of the muscle labeled "C" is to adduct and stabilize the position of the scapulae. This means that it pulls the scapulae towards the midline of the body and helps to keep them in a stable position. This muscle does not flex the forearm or pull the forelimb dorsocaudally, as stated in the other options.

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13.

The digastric muscle _________ the mandible.
- Protracts
- Retracts
- Elevates
- Depresses
Correct Answer

A. Depresses

Explanation

The digastric muscle is responsible for depressing the mandible. This means that it helps to lower the jaw bone.

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Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Apr 24, 2009

Quiz Created by
Companatomy

Branchiomeric Muscles Of A Cat

The masseter muscle is responsible for elevation of the ____________ . (specific bone)

Quiz Preview

The muscle labeled "A" is the ________ muscle.

This muscle is the most posterior of the trapezius group:

The clavotrapezius, labeled "A" in the picture above, protracts the __________ .(specific bone)

The ___________ muscle, which is responsible for turning the head while the clavicle is stationary, is located dorsolateral to the sternomastoid.

True or false: The masseter and the temporalis both work toward the same action.

ID the muscle labeled "B" in the picture.

The insertion of the cleidomastoid is the:

ID the muscle labeled "B" and give its action.

ID the muscle labeled "E" in the picture above.

The muscle labeled "E" in the picture above is responsible for this action:

Choose the correct function of the muscle labeled "C"

The digastric muscle _________ the mandible.