Anatomy of the Spine and Trunk

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Questions and Answers

Which structure listed is NOT considered part of the pelvic girdle?

  • Sacrum
  • Ilium
  • Ischium
  • Coccyx (correct)

What anatomical feature connects the two hip bones posteriorly?

  • Hip joint
  • Iliofemoral joint
  • Pubic symphysis
  • Sacroiliac joint (correct)

Which of the following ligaments is NOT considered a spinal column ligament?

  • Posterior longitudinal
  • Supraspinous
  • Anterior longitudinal
  • Subspinous (correct)

The cervical vertebra located directly beneath the first cervical vertebra (atlas) is known as the:

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

What is the name of the ligament that spans from one side to the other of the vertebral foramen of the axis (C2)?

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

Which muscle is most likely involved in lumbar spine rotation?

<p>Transverse abdominis (C)</p> Signup and view all the answers

In which region(s) of the spinal column does the greatest amount of lateral flexion occur?

<p>Cervical spine and lumbar spine (C)</p> Signup and view all the answers

Which muscle of the cervical spine flexes, laterally flexes, and rotates the cervical spine, and has attachments to the mastoid process, clavicle, and cervical vertebrae?

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

Considering its stable attachment to the ilium, which action would MOST likely be performed by the quadratus lumborum muscle regarding the spinal column?

<p>Lateral flexion (C)</p> Signup and view all the answers

The area between the cervical region and the diaphragm of the trunk is known as the:

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

What region of the trunk is defined as the area between the diaphragm and the hips?

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

What characteristics distinguish cervical vertebrae from other vertebrae?

<p>Bifurcated spinous processes (D)</p> Signup and view all the answers

What unique feature is present on the second cervical vertebra (C2) that is not found on any other vertebra?

<p>Odontoid process (C)</p> Signup and view all the answers

The first cervical vertebra is also known as the:

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

Which type of vertebrae is known for being the largest in size and featuring short, blunt spinous processes?

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

Which muscle is primarily responsible for respiration?

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

During quiet inspiration, which muscle group assists the diaphragm?

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

Which muscle group assists the abdominal muscles during forced expiration?

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

What is the name of the distal portion of the sternum?

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

How many pairs of true ribs form part of the thorax structure?

<p>7 (B)</p> Signup and view all the answers

Flashcards

Coccyx

The coccyx, or tailbone, is NOT part of the pelvic girdle.

Sacroiliac joint

The posterior connection of the two hip bones.

Subspinous ligament

The subspinous ligament is not a ligament of the spinal column.

Axis

The cervical vertebra sitting beneath the first cervical vertebra.

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Transverse ligament

This ligament crosses from one side to the other of the vertebral foramen of the axis (C2).

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Transverse Abdominis

The transverse abdominis muscle is most likely to be involved in the rotation of the lumbar spine.

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Lateral Flexion

Greatest amount of lateral flexion in the spinal column takes place in the cervical and lumbar spine.

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Suprasternal notch

The manubrium of the sternum contains the suprasternal notch.

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Sternum

A major muscle of the cervical spine that flexes, laterally flexes, and rotates the cervical spine.

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Diaphragm

The primary muscle of respiration.

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External Intercostals

A muscle group which assists the diaphragm during quiet inspiration.

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Internal Intercostals

During forced expiration, which muscle group assists the abdominal muscles?

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Xiphoid process

The distal portion of the sternum.

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Thorax

The trunk area between the cervical region and the diaphragm.

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Abdomen

The trunk area between the diaphragm and the hips.

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Bifurcated spinous processes

Cervical vertebrae are distinguished by their bifurcated spinous processes.

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Odontoid Process

A distinguishing feature of the second cervical vertebra.

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Atlas

The first cervical vertebra.

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Lumbar Vertebrae

These vertebrae are the largest in size and feature short, blunt spinous processes.

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Lateral flexion

The most stable attachment to the ilium causes this muscle's most likely action, lateral flexion.

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Study Notes

  • Coccyx is not part of the Pelvic Girdle
  • The posterior connection of the two hip bones is the sacroiliac joint
  • The subspinous ligament isn't considered a ligament of the spinal column
  • The cervical vertebra sitting beneath the first cervical vertebra is the axis
  • The transverse ligament crosses from one side to the other of the vertebral foramen of the axis (C2)
  • The transversus abdominis muscle is most likely to be involved in rotation of the lumbar spine
  • The greatest amount of lateral flexion in the spinal column takes place in the cervical and lumbar spine
  • A major muscle of the cervical spine that flexes, laterally flexes, and rotates the cervical spine has attachments to the mastoid process of the skull, the clavicle and the thoracic vertebrae
  • The quadratus lumborum muscle's most likely action regarding the spinal column is lateral flexion
  • The area between the cervical region and the diaphragm in the trunk is known as the thorax
  • The area between the diaphragm and the hips pertaining to the trunk is known as the abdomen
  • The cervical vertebrae are distinguished from other vertebrae by their bifurcated spinous processes
  • The second cervical vertebra is unique due to its odontoid process
  • The first vertebra is also known as the atlas
  • Lumbar vertebrae are the largest in size and feature short, blunt spinous processes
  • The diaphragm is the primary muscle of respiration
  • The external intercostals assist the diaphragm during quiet inspiration
  • The internal intercostals muscle group assists the abdominal muscles during forced expiration
  • The xiphoid is the distal portion of the sternum
  • There are 7 pairs of true ribs making up the thorax structure
  • The Pericardium is not considered a layer of cells that make up the walls of the ventricles of the heart
  • Twelve vertebrae have ribs attached to them
  • There are 2 floating ribs
  • The head of a rib articulates with the vertebra
  • The manubrium of the sternum has a suprasternal notch which is an anatomical landmark
  • Proper hand position during cardiopulmonary resuscitation is stressed to avoid possible facture of the xiphoid of the sternum
  • The base of the heart is located at the superior (upper) end of the heart
  • Air passing through the respiratory tree ends ultimately in the air sacs
  • Regurgitation is a condition that occurs when a heart valve fails to fully close
  • Diaphragm: Chief muscle of respiration
  • After passing the inguinal ligament distally, the external iliac artery does not become known as the hypogastric artery (False)
  • The spinal cord ends approximately at level L1 of the spinal column
  • The inferior vena cava empties into the heart
  • The phrenic nerve innervates the diaphragm
  • The motor area of the brain is located in the precentral gyrus
  • The descending aorta is initially known as the thoracic aorta
  • The medulla oblongata is also known as the myelencephalon
  • The pulmonary arteries are the two largest arteries of the heart
  • The middle cerebral artery is the vessel most commonly involved in an epidural hematoma, although trauma can lacerate any artery supplying the brain with blood.
  • The lumbosacral plexus supplies the major nerves that serve the entire lower extremity (True)
  • The common iliac artery divides into the external and internal iliac arteries (True)
  • The deep veins of the head are the internal jugular vein and the vertebral vein (True).
  • The respiratory center in the brain is found in the medulla oblongata (True).
  • The autonomic nervous system is actually two systems known as the sympathetic (craniosacral) system and the parasympathetic (thoracolumbar) system (False).
  • The internal carotid artery is the anterior branch of the common carotid artery and supplies blood to the brain and meninges (True).

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