Exam #3 - Thoracic Musculature

Question 1

What 3 major ligaments of the vertebral column limits flexion?

Answer 1

1. Ligamentum flavum
2. Supraspinous ligament
3. Infraspinous ligament

Question 2

Limits contralateral lateral flexion and forward flexion

Answer 2

Intertransverse ligament

Question 3

Limits extension or excessive lordosis in the cervical & lumbar regions + Reinforces the anterior sides of the intervertebral discs

Answer 3

Anterior longitudinal ligament

Question 4

Limits flexion + Reinforces the posterior sides of the intervertebral discs

Answer 4

Posterior longitudinal ligament

Question 5

Strengthen the apophyseal joints

Answer 5

Capsules of apophyseal joints

Question 6

Thickest ligament in the lumbar region

Answer 6

Ligamentum Flavum

Question 7

Loose in the near-neutral position but become increasingly taut at the extremes of all other positions

Answer 7

Capsules of the apophyseal joints

Question 8

Spinal muscles (6)

Answer 8

1. Longissimus Thoracis
2. Spinalis Thoracis
3. Semispinalis Thoracis
4. Multifidus
5. Rotatores Thoracis
6. Intertransversarii

Question 9

Extremity muscles (3)

Answer 9

1. Pectoralis major
2. Latissimus dorsi
3. Serratus anterior

Question 10

**Primary **muscles in forced expiration (4)

Answer 10

1. Abdominal muscles
2. Internal intercostal (posterior)
3. Transversus thoracis
4. Transverse intercostals (intimal)

Question 11

Primary muscles for Inspiration (4)

Answer 11

1. Diaphragm
2. Levator costarum
3. External intercostals
4. Internal intercostals

Question 12

Accessory muscles for Inspiration (7)

Answer 12

1. Scaleni
2. SCM
3. Trapezius
4. Serratus anterior & posterior (superior & inferior)
5. Pectoralis major & minor
6. Latissimus dorsi
7. Subclavius

Question 13

Accessory muscles for forced expiration (4)

Answer 13

1. Latissimus dorsi
2. Serratus posterior inferior
3. Quadratus lumborum
4. Iliocostalis lumborum