Functional Anatomy Of The Trunk Trivia Quiz

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| By SkimOT2014

SkimOT2014

Community Contributor

Quizzes Created: 7 | Total Attempts: 3,851

Questions: 11 | Attempts: 388 | Updated: Mar 20, 2023

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Human being's trunk refers to the whole body structure from head to toe that support the body in its functions. Functional anatomy of the trunk is a comprehensive quiz on the functions of the different body parts.

Questions and Answers

1.

The abdominals are most active when:
- A.
  
  The shoulders are behind the hips
- B.
  
  The shoulders are in front of the hips
Correct Answer
A. The shoulders are behind the hips

Explanation
When the shoulders are behind the hips, it creates a posterior pelvic tilt, which activates the abdominal muscles. This position helps to stabilize the spine and maintain proper alignment. The abdominals have to work harder to prevent the hips from tilting forward and to maintain a neutral spine. On the other hand, when the shoulders are in front of the hips, it creates an anterior pelvic tilt, which lengthens and relaxes the abdominal muscles. This position can lead to poor posture and decreased abdominal activation.

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2.

The purpose of the abdominal wall and lateral trunk is to: (check all that apply)
- A.
  
  Support viscera
- B.
  
  Respiratory assist
- C.
  
  Trunk control (lateral flexion, rotation, posterior movement - leaning back)
- D.
  
  Balance of vertebral column
- E.
  
  Pull pelvis into anterior tilt
- F.
  
  Accentuate lumbar lordosis
Correct Answer(s)
A. Support viscera
B. Respiratory assist
C. Trunk control (lateral flexion, rotation, posterior movement - leaning back)

Explanation
The purpose of the abdominal wall and lateral trunk is to support the viscera, assist in respiration, and provide trunk control, including lateral flexion, rotation, and posterior movement (leaning back). These functions help maintain the balance of the vertebral column and pull the pelvis into an anterior tilt. Additionally, they accentuate lumbar lordosis, contributing to the overall stability and mobility of the trunk.

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3.

What is the normal range of motion of the cervical portion of the spine?
- A.
  
  Flexion: 40 / Extension: 75 / Lat. Flex.: 35-45 / Rotation: 45-50
- B.
  
  Flexion: 105 / Extension: 60 / Lat. Flex.: 20 / Rotation: 35
- C.
  
  Flexion: ---- / Extension: ----- / Lat. Flex.: 20 / Rotation: 5
- D.
  
  Flexion: 140 / Extension: 140 / Lat. Flex.: 75-85 / Rotation: 90
Correct Answer
A. Flexion: 40 / Extension: 75 / Lat. Flex.: 35-45 / Rotation: 45-50

Explanation
The normal range of motion of the cervical portion of the spine includes flexion of 40 degrees, extension of 75 degrees, lateral flexion of 35-45 degrees, and rotation of 45-50 degrees. This means that the neck can bend forward and backward, tilt to the sides, and rotate to some extent within these ranges.

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4.

What is the normal range of motion of the thoracic portion of the spine?
- A.
  
  Flexion: 40 / Extension: 75 / Lat. Flex.: 35-45 / Rotation: 45-50
- B.
  
  Flexion: 105 / Extension: 60 / Lat. Flex.: 20 / Rotation: 35
- C.
  
  Flexion: ---- / Extension: ----- / Lat. Flex.: 20 / Rotation: 5
- D.
  
  Flexion: 140 / Extension: 140 / Lat. Flex.: 75-85 / Rotation: 90
Correct Answer
B. Flexion: 105 / Extension: 60 / Lat. Flex.: 20 / Rotation: 35

Explanation
The normal range of motion of the thoracic portion of the spine includes flexion of 105 degrees, extension of 60 degrees, lateral flexion of 20 degrees, and rotation of 35 degrees.

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5.

What is the normal range of motion of the lumbar portion of the spine?
- A.
  
  Flexion: 40 / Extension: 75 / Lat. Flex.: 35-45 / Rotation: 45-50
- B.
  
  Flexion: 105 / Extension: 60 / Lat. Flex.: 20 / Rotation: 35
- C.
  
  Flexion: ---- / Extension: ----- / Lat. Flex.: 20 / Rotation: 5
- D.
  
  Flexion: 140 / Extension: 140 / Lat. Flex.: 75-85 / Rotation: 90
Correct Answer
C. Flexion: ---- / Extension: ----- / Lat. Flex.: 20 / Rotation: 5
6.

What is the normal range of motion of the total spine?
- A.
  
  Flexion: 40 / Extension: 75 / Lat. Flex.: 35-45 / Rotation: 45-50
- B.
  
  Flexion: 105 / Extension: 60 / Lat. Flex.: 20 / Rotation: 35
- C.
  
  Flexion: ---- / Extension: ----- / Lat. Flex.: 20 / Rotation: 5
- D.
  
  Flexion: 140 / Extension: 140 / Lat. Flex.: 75-85 / Rotation: 90
Correct Answer
D. Flexion: 140 / Extension: 140 / Lat. Flex.: 75-85 / Rotation: 90

Explanation
The normal range of motion of the total spine includes flexion, extension, lateral flexion, and rotation. Flexion refers to the forward bending of the spine, while extension refers to the backward bending. Lateral flexion refers to the side bending of the spine, and rotation refers to the twisting movement. The correct answer states that the normal range of motion for flexion is 140 degrees, for extension is 140 degrees, for lateral flexion is 75-85 degrees, and for rotation is 90 degrees.

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7.

Subtle postural shifts will completely change muscle activity.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Subtle postural shifts can indeed have a significant impact on muscle activity. Even small adjustments in posture can alter the distribution of forces and load on different muscles, leading to changes in muscle activation patterns. This means that even slight changes in body position can result in different muscles being engaged or disengaged. Therefore, it is accurate to say that subtle postural shifts can completely change muscle activity.

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8.

Patients who are _________________ will have trouble dissociating their muscle actions.
- A.
  
  Weak or posturally insecure
- B.
  
  Freezing their degrees of freedom
- C.
  
  Spastic
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
Patients who are weak or posturally insecure, freezing their degrees of freedom, or spastic will have trouble dissociating their muscle actions. This means that they will have difficulty in coordinating and controlling their muscle movements, leading to impaired motor function.

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9.

Your patient is sitting in neutral. You place an object behind him, and he has to lean back to grab it. Your patient's abdominals are working _________.
- A.
  
  Eccentrically
- B.
  
  Concentrically
Correct Answer
A. Eccentrically

Explanation
When the patient is sitting in a neutral position and leans back to grab the object, their abdominals are working eccentrically. Eccentric muscle contractions occur when the muscle lengthens while generating force, as opposed to concentric contractions where the muscle shortens while generating force. In this scenario, the abdominals are lengthening as the patient leans back to reach the object, while still actively contracting to control the movement and prevent falling.

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10.

You're sitting in a recliner watching TV. You accidentally drop the remote. You have to lean forward to grab it. In this scenario, your abdominals are working ______________.
- A.
  
  Eccentrically
- B.
  
  Concentrically
- C.
  
  They're not working. I would leave the remote on the floor.
Correct Answer
B. Concentrically

Explanation
In this scenario, your abdominals are working concentrically. This means that they are contracting and shortening in order to bring your torso forward and allow you to grab the remote.

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11.

You're sitting in a neutral position. You turn/rotate your body to the right. The internal obliques on the _____ side of the body are working as well as the external obliques on the ________ side of your body.
- A.
  
  Right / Left
- B.
  
  Left / Right
Correct Answer
A. Right / Left

Explanation
When acting unilaterally, internal obliques turn the vertebral column to the same side. The external obliques, when working unilaterally, turn the vertebral column to the OPPOSITE side.

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Current Version
Mar 20, 2023

Quiz Edited by
ProProfs Editorial Team
Mar 09, 2014

Quiz Created by
SkimOT2014

Functional Anatomy Of The Trunk Trivia Quiz

The abdominals are most active when:

The purpose of the abdominal wall and lateral trunk is to: (check all that apply)

What is the normal range of motion of the cervical portion of the spine?

What is the normal range of motion of the thoracic portion of the spine?

What is the normal range of motion of the lumbar portion of the spine?

What is the normal range of motion of the total spine?

Subtle postural shifts will completely change muscle activity.

Patients who are _________________ will have trouble dissociating their muscle actions.

Your patient is sitting in neutral. You place an object behind him, and he has to lean back to grab it. Your patient's abdominals are working _________.

You're sitting in a recliner watching TV. You accidentally drop the remote. You have to lean forward to grab it. In this scenario, your abdominals are working ______________.

You're sitting in a neutral position. You turn/rotate your body to the right. The internal obliques on the _____ side of the body are working as well as the external obliques on the ________ side of your body.

You're sitting in a neutral position. You turn/rotate your body to the right. The internal obliques on the _ side of the body are working as well as the external obliques on the ____ side of your body.