8.6 Spinal Cord

Question 1

extends from the foramen magnum to the second lumbar vertabra

Answer 1

spinal cord

Question 2

the spinal nerves exiting ate the end of the spinal cord that resemble a horse’s tail

Answer 2

cauda equina

Question 3

white matter in each half of the spinal cord is organized into three colums

Answer 3

dorsal, vental, lateral columns

Question 4

consist of axons that conduct action potentials toward the brain

Answer 4

ascending tracts

Question 5

consist of axons that conduct action potentials away from the brain

Answer 5

descending tracts

Question 6

fluid-filled space in the center of the spinal cord

Answer 6

central canal

Question 7

neurons in the anterior horn

Answer 7

somatic motor neurons

Question 8

neurons in the lateral horn

Answer 8

autonomic neurons

Question 9

contains sensory axons

Answer 9

dorsal root

Question 10

contains motor axons

Answer 10

ventral root

Question 11

simplest reflex in which muscles contract in response to a stretching force applied to them

Answer 11

stretch reflex

Question 12

occurs when the patellar ligament is tapped and the quadriceps femoris muscle tendon and the muscles themselves are stretched

Answer 12

knee-jerk reflex or patellar reflex

Question 13

its function os to remove a limb or another body part from a painful stimulus

Answer 13

withdrawal reflex or flexor reflex