Anatomy 3
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Questions and Answers

Which muscles connect the spinous processes of the vertebrae?

  • Suboccipital muscles
  • Intertransversarii
  • Levatores costarum
  • Interspinales (correct)

Which muscles assist with respiration by elevating the ribs during inhalation?

  • Interspinales
  • Suboccipital muscles
  • Intertransversarii
  • Levatores costarum (correct)

Which muscles are located deep to the superior part of the posterior cervical region?

  • Suboccipital muscles (correct)
  • Levatores costarum
  • Interspinales
  • Intertransversarii

Which muscles are innervated by the posterior ramus of C1?

<p>Suboccipital muscles (A)</p> Signup and view all the answers

Which muscles are responsible for extension of the atlanto-occipital joint?

<p>Suboccipital muscles (B)</p> Signup and view all the answers

Which muscles are part of the deep group of anterior neck muscles?

<p>Rectus capitis lateralis, rectus capitis anterior, longus capitis and longus coli (A)</p> Signup and view all the answers

Which muscles raise the first rib during inspiration?

<p>Anterior scalene (D)</p> Signup and view all the answers

Which muscles connect the transverse processes of the vertebrae?

<p>Intertransversarii (D)</p> Signup and view all the answers

Which muscles are responsible for stabilization and lateral flexion of the vertebral column?

<p>Intertransversarii (B)</p> Signup and view all the answers

Which muscles are innervated by the ventral rami of the cervical spinal nerves?

<p>Levatores costarum (D)</p> Signup and view all the answers

Which muscles are innervated by intercostal nerves running within the rib cage?

<p>Superficial back muscles (C)</p> Signup and view all the answers

Which layer of the intrinsic back muscles is responsible for maintaining posture and controlling movements of the vertebral column?

<p>Deep layer (D)</p> Signup and view all the answers

Which group of muscles in the intermediate layer of the intrinsic back muscles extends from the sacrum all the way up the spine?

<p>Sacropinalis group (B)</p> Signup and view all the answers

Which muscle is part of the intermediate layer of the intrinsic back muscles?

<p>Erector spinae (B)</p> Signup and view all the answers

Which layer of the intrinsic back muscles is composed of the semispinalis, multifidus, and rotatores muscles?

<p>Deep layer (D)</p> Signup and view all the answers

Which muscle in the deep layer of the intrinsic back muscles is responsible for extension of the head, cervical spine, and thoracic spine when contracted bilaterally?

<p>Semispinalis (D)</p> Signup and view all the answers

Which muscle in the deep layer of the deep back muscles is best developed in the lumbar region and is responsible for stabilization of the vertebral column?

<p>Multifidus (A)</p> Signup and view all the answers

Which muscle is not part of the transversospinalis group in the deep layer of the intrinsic back muscles?

<p>Erector spinae (B)</p> Signup and view all the answers

Which muscle group of the back muscles mainly originates from the transverse processes of vertebrae and passes to the spinous processes of more superior vertebrae?

<p>Transversospinalis group (B)</p> Signup and view all the answers

Which muscle is the deepest of the three layers of the transversospinalis muscles and is best developed in the thoracic region?

<p>Rotatores (A)</p> Signup and view all the answers

Which muscles specifically act on the vertebral column and are responsible for producing its movements and maintaining posture?

<p>Intrinsic (deep) back muscles (B)</p> Signup and view all the answers

Which group of muscles in the back includes the trapezius, latissimus dorsi, levator scapulae, and rhomboids?

<p>Superficial extrinsic back muscles (B)</p> Signup and view all the answers

Which cranial nerve supplies the motor fibers to the trapezius muscle?

<p>Spinal accessory nerve (CN XI) (D)</p> Signup and view all the answers

Which muscle lies deep to the rhomboid muscles and is part of the intermediate extrinsic back muscles?

<p>Serratus posterior superior (C)</p> Signup and view all the answers

Which muscle lies deep to the latissimus dorsi and is part of the intermediate extrinsic back muscles?

<p>Serratus posterior inferior (C)</p> Signup and view all the answers

Which muscles connect the axial skeleton (vertebral column) with the superior appendicular skeleton (specifically the upper limb)?

<p>Superficial extrinsic back muscles (B)</p> Signup and view all the answers

Which muscles produce and control limb movements?

<p>Superficial extrinsic back muscles (C)</p> Signup and view all the answers

Which muscles are thin, weak muscles, commonly designated as superficial respiratory muscles, but are more likely proprioceptive rather than motor in function?

<p>Intermediate extrinsic back muscles (A)</p> Signup and view all the answers

Which muscles receive their nerve supply from the anterior rami of cervical nerves, except for the trapezius which receives its motor fibers from the spinal accessory nerve (CN XI)?

<p>Superficial extrinsic back muscles (A)</p> Signup and view all the answers

What nerves supply the intermediate extrinsic back muscles?

<p>intercostal nerves (C)</p> Signup and view all the answers

What nerves innervate the intrinsic back muscles?

<p>posterior rami of spinal nerves (C)</p> Signup and view all the answers

What nerves innervate the anterior neck muscles?

<p>anterior rami of cervical nerves (B)</p> Signup and view all the answers

What are the attachments of the spinotransverse group?

<p>SP to TVP (A)</p> Signup and view all the answers

What movements do the intrinsic superficial layer muscles perform?

<p>ipsilateral rotation and flexion and extension of the head and neck (B)</p> Signup and view all the answers

What movements do the erector spinae control?

<p>bilateral extension and unilateral lateral flexion (B)</p> Signup and view all the answers

what is the attachment points of the longissimus of the erector spinae

<p>connects TVP's (B)</p> Signup and view all the answers

Interspinals connects _____, intertransversii connects _____< and levatores costarum connect _____. These are part of the _____ group of the back muscles.

<p>Sps; TVPs; ribs to TVP's; segmental's deep group (C)</p> Signup and view all the answers

Platysma is innervated by:

<p>CN VII (B)</p> Signup and view all the answers

Movements of the SCM muscle include all except:

<p>Ipsilateral rotation (A)</p> Signup and view all the answers

SCM muscle is innervated by:

<p>CN XI (B)</p> Signup and view all the answers

Which arteries mainly supply the breast?

<p>Internal thoracic artery (D)</p> Signup and view all the answers

What is the venous drainage of the breast?

<p>Axillary veins (C)</p> Signup and view all the answers

Which nerves innervate the breast?

<p>2nd to 6th intercostal nerves (B)</p> Signup and view all the answers

What is the main arterial supply of the thoracic wall?

<p>Posterior intercostal arteries (C)</p> Signup and view all the answers

What is the venous drainage of the thoracic wall on the right side?

<p>Azygos vein (D)</p> Signup and view all the answers

Which nerves supply the intercostal muscles, skin of the chest wall, and parietal pleura?

<p>Anterior rami of the upper thoracic spinal nerves (B)</p> Signup and view all the answers

Which artery is a direct continuation of the internal thoracic artery and supplies the anterolateral abdominal wall?

<p>Superior epigastric artery (A)</p> Signup and view all the answers

What is the venous drainage of the abdominal wall?

<p>Veins parallel to the arteries (C)</p> Signup and view all the answers

What are the attachments of the spinotransverse group of muscles?

<p>Transverse processes to spinous processes (B)</p> Signup and view all the answers

Which layer of the intrinsic back muscles is responsible for maintaining posture and controlling movements of the vertebral column?

<p>Deep layer (A)</p> Signup and view all the answers

Which muscle is responsible for moving the rib superiorly during inspiration?

<p>External intercostal (C)</p> Signup and view all the answers

Which muscle is responsible for moving the rib inferiorly during expiration?

<p>Internal intercostal (A)</p> Signup and view all the answers

Which muscle is the major muscle of inspiration?

<p>Diaphragm (B)</p> Signup and view all the answers

Which muscle depresses the domes and increases the volume of the thoracic cavity?

<p>Diaphragm (D)</p> Signup and view all the answers

Which muscle group mainly originates from the transverse processes of vertebrae and passes to the spinous processes of more superior vertebrae?

<p>Transversospinalis group (B)</p> Signup and view all the answers

Which muscle group is responsible for maintaining posture and controlling movements of the vertebral column?

<p>Intrinsic deep layer muscles (D)</p> Signup and view all the answers

The esophageal foramina in the diaphragm is at _____, the aortic foramina is at ___, and the caval foramina is at ___

<p>T10; T12; T8 (A)</p> Signup and view all the answers

The diaphragm is innervated by the:

<p>phrenic nerve (C)</p> Signup and view all the answers

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