Nervous System and Spinal Cord Quiz

What is the maximum width of the adult spinal cord?

• 45 cm

• 14 mm

• 31 segments

• Cervical enlargement

Which areas of the spinal cord have the greatest gray matter?

• Cervical enlargement

• Lumbar enlargement

• Dorsal root ganglia

• Ventral roots

What is the function of the dorsal roots in the spinal cord?

• Bring sensory information into the spinal cord

• Control somatic and visceral effectors

• Contain the cell bodies of sensory neurons

• Form a single spinal nerve

What is the function of the ventral roots in the spinal cord?

• Bring sensory information into the spinal cord

• Control somatic and visceral effectors

• Contain the cell bodies of sensory neurons

• Form a single spinal nerve

How many pair of spinal nerves are there?

• 45

• 14

• 31

• 3

What is the function of the spinal meninges?

• Protect the spinal cord from damage

• Deliver oxygen and nutrients to the spinal cord

• Cushion and provide shock absorption

• All of the above

Which layer of the spinal meninges is the outermost covering of the spinal cord?

• Dura mater

• Arachnoid

• Pia mater

• Epidural space

What is the function of the epidural space?

• Contains loose connective tissue

• Contains blood vessels

• Provides stability to the dura mater

• Acts as a shock absorber

What is the subarachnoid space filled with?

• Cerebrospinal fluid

• Blood vessels

• Adipose tissue

• Collagen fibers

What is the function of the denticulate ligaments?

• Prevent lateral and longitudinal movement

• Bridge between the arachnoid and pia mater

• Surround individual axons

• Bundle axons in compartments