Spine and Thorax

Question 1

What muscles are in the Erector Spinae Group?

Answer 1

Spinalis-Longissimus-Iliocostalis

Question 2

What are the three primary muscles that make up the erector spinae group?

Answer 2

Spinalis, longissimus, and iliocostalis.

Question 3

Which muscle is located most medially in the erector spinae group?

Answer 3

Spinalis.

Question 4

True or False: The longissimus muscle is the longest muscle of the erector spinae group.

Answer 4

True.

Question 5

Fill in the blank: The iliocostalis muscle is primarily responsible for __________ the vertebral column.

Answer 5

extending and laterally flexing.

Question 6

What is the primary function of the multifidi muscles?

Answer 6

Stabilizing the vertebral column.

Question 7

Which muscles are responsible for rotation and extension of the spine?

Answer 7

Rotatores.

Question 8

True or False: The semispinalis capitis muscle is part of the transversospinalis group.

Answer 8

True.

Question 9

What is the primary role of the splenius capitis muscle?

Answer 9

To extend and rotate the head.

Question 10

Multiple Choice: Which muscle is NOT part of the erector spinae group? A) Spinalis B) Longissimus C) Multifidi D) Iliocostalis

Answer 10

C) Multifidi.

Question 11

Short Answer: Name one function of the longissimus muscle.

Answer 11

Extending and laterally flexing the vertebral column.

Question 12

True or False: The rotatores are larger than the multifidi muscles.

Answer 12

False.

Question 13

Fill in the blank: The __________ muscles are located between the transverse and spinous processes of the vertebrae.

Answer 13

multifidi.

Question 14

What is the origin of the splenius capitis muscle?

Answer 14

The spinous processes of the cervical and upper thoracic vertebrae.

Question 15

Multiple Choice: Which muscle primarily aids in the rotation of the head to the same side? A) Splenius capitis B) Longissimus C) Spinalis D) Iliocostalis

Answer 15

A) Splenius capitis.

Question 16

True or False: The iliocostalis muscle extends from the pelvis to the neck.

Answer 16

True.

Question 17

Short Answer: What group of muscles does the semispinalis capitis belong to?

Answer 17

Transversospinalis group.

Question 18

Fill in the blank: The erector spinae muscles are primarily responsible for __________ of the spine.

Answer 18

extension and lateral flexion.

Question 19

What is the anatomical position of the spinalis muscle relative to the longissimus?

Answer 19

Medial.

Question 20

Multiple Choice: Which muscle is primarily involved in maintaining posture? A) Rotatores B) Splenius capitis C) Longissimus D) Multifidi

Answer 20

C) Longissimus.

Question 21

True or False: The multifidi muscles span multiple vertebrae.

Answer 21

True.

Question 22

Fill in the blank: The __________ muscles assist in the fine control of spinal movements.

Answer 22

rotatores.

Question 23

Short Answer: What action do the erector spinae muscles perform when contracted?

Answer 23

They extend the vertebral column.

Question 24

What is the main difference between the multifidi and rotatores muscles?

Answer 24

The multifidi are larger and span more vertebrae than the rotatores.

Question 25

True or False: The splenius capitis is located on the anterior side of the neck.

Answer 25

False.

Question 26

Multiple Choice: Which muscle contributes to head extension? A) Iliocostalis B) Spinalis C) Semispinalis capitis D) Rotatores

Answer 26

C) Semispinalis capitis.

Question 27

Fill in the blank: The longissimus muscle is divided into three parts: thoracis, cervicis, and __________.

Answer 27

capitis.