L6 MCQ - Spinal Cord

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which artery supplies the majority of the arterial blood supply to the spinal cord?

Inferior spinal artery

Posterior spinal artery

Median spinal artery

Anterior spinal artery (correct)

Where are the posterior spinal arteries located?

On each side of the cord anteriorly

Along the anterior midline of the cord

On each side of the cord posteriorly (correct)

Along the posterior midline of the cord

How many posterior spinal arteries supply the arterial blood to the posterior region of the spinal cord?

One

Two (correct)

Four

Three

From which arteries do the posterior spinal arteries arise?

Vertebral spinal arteries Signup and view all the answers

How many longitudinal channels do the spinal cord veins drain into?

Six Signup and view all the answers

Which vein drains into the internal vertebral venous plexus?

Posterolateral veins Signup and view all the answers

Which vein lies on the anterior midline of the spinal cord?

Anterior spinal vein Signup and view all the answers

Where do the anterolateral veins lie in relation to the spinal cord?

On each side of the cord anteriorly Signup and view all the answers

Which veins drain into the posterior radicular veins?

Posterolateral veins Signup and view all the answers

How is the anterior spinal artery formed?

By union of two branches of the vertebral arteries Signup and view all the answers

Which part of the spinal cord is responsible for receiving sensory information related to pain, temperature, and touch from the dorsal root?

Substantia gelatinosa Signup and view all the answers

Which part of the spinal cord is responsible for proprioceptive signals and gives rise to the posterior spinocerebellar tract?

Nucleus dorsalis (Clarke's column) Signup and view all the answers

Which part of the spinal cord contains nerve cell groups that supply groups of muscles with similar functions?

Cell columns of lower motor neurons in ventral gray matter Signup and view all the answers

Which part of the spinal cord is responsible for receiving fibers from the dorsal white columns and is involved in senses of position and movement (proprioception)?

Nucleus proprius Signup and view all the answers

Which part of the spinal cord is responsible for carrying impulses from pain, tactile, thermal, muscle, and joint receptors?

Ascending tracts Signup and view all the answers

Which part of the spinal cord is responsible for descending signals from the cerebral cortex and brainstem, involved in control of movement, posture, muscle tone, etc?

Descending tracts Signup and view all the answers

Which region/column of the white matter of the spinal cord is located between the anterior median fissure and the anterolateral sulcus?

Anterior funiculus Signup and view all the answers

Which region/column of the white matter of the spinal cord is located between the anterolateral sulcus and the posterolateral sulcus?

Lateral funiculus Signup and view all the answers

Which region/column of the white matter of the spinal cord is located between the posterolateral sulcus and the dorsal median sulcus?

Posterior funiculus Signup and view all the answers

Which part of the spinal cord is responsible for external segmentation and carries sensory and motor information to and from the spinal cord?

Spinal nerves Signup and view all the answers

Study Notes

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on the surface and internal features, blood supply, and tracts of the spinal cord with this quiz by Dr. Siobhan McMahon. Explore its cylindrical shape, length, and location within the vertebral canal.