Terms

Question 1

Where is CSF housed?

Answer 1

subarachnoid space

Question 2

Conus Medullaris

Answer 2

most inferior, “cone-shaped” portion of spinal cord

Question 3

Filum Terminale

Answer 3

“terminal thread”; strand of fibrous tissue that extends inferiorly from apex of conus medullaris; anchors spinal cord to vertebral column

Question 4

Cauda Equina

Answer 4

“horse tail”; bundle of spinal nerve roots below conus medullaris; exits vertebral column via anterior & posterior sacral foramina after which it forms different plexuses to innervate the limbs

Question 5

Contractility

Answer 5

ability to shorten & generate force

Question 6

Excitability

Answer 6

ability to receive electrical stimulus & generate AP

Question 7

Elasticity

Answer 7

ability to return to resting length after having been lengthened

Question 8

Extensibility

Answer 8

ability to stretch back to resting length

Question 9

Twitch

Answer 9

single minimal stimulus

Question 10

Tetanus

Answer 10

maximum force resulting from repeated stimulation

Question 11

Fatigue

Answer 11

decline in muscle ability to maintain constant force of contraction in the face of long-term repetitive stimulation