Laminas

Question 1

T9-L1 houses?

Answer 1

L1-C0 segments

Question 2

Cervical enlargements? Levels

Answer 2

C5-T1

Question 3

Lumbar enlargements? Levels

Answer 3

L1-S3

Question 4

Dura mater is innervated by?

Answer 4

Recurrent meningeal nerve

Question 5

Subarachnoid space contains?

Answer 5

CSF; Enlarged to form lumbar cistern

Question 6

2 derivatives of Pia mater

Answer 6

Denticulate ligaments; Filum terminale

Question 7

Moter neurons function?

Answer 7

to
 skeletal,
 smooth,
cardiac 
muscle
 and
glands


Question 8

Motor neurons located?

Answer 8

Lateral horn and Ventral horn

Question 9

Motor neurons: Lateral horn contains what type of fibers?

Answer 9

Preganglionic

Question 10

Motor neurons: Ventral horn contains what type of fibers?

Answer 10

Alpha and gamma

Question 11

Interneuron forms?

Answer 11

Circuits

Question 12

Tract neurons has axons projects to

Answer 12

Higher centers

Question 13

Propriospinal neurons has axons ascend/descend to other _____?

Answer 13

Cord segments

Question 14

Motor neurons: Skeletal muscle innervated by alpha interneurons is called?

Answer 14

Extrafusal

Question 15

Motor neurons: Sarcomeres innervated by gamma interneurons is called?

Answer 15

Intrafusal

Question 16

Tract neurons has cell bodies in? What does it help create?

Answer 16

Gray matter; white matter

Question 17

Propriospinal is communication with other cord segments, does it go to the brain?

Answer 17

No

Question 18

Lamina 1 and 2 (Substantia gelatinosa) is called, and function?

Answer 18

Process nociception and thermoreceptors (Pain and temp)

Question 19

Lamina 3 and 4 function?

Answer 19

Innocuous input. Receiving and processing touch, pressure, vibration, everything but pain and temp (innocuous). Mechanoreceptors synapse in 3 and 4

Question 20

Lamina 5 function?

Answer 20

Proprioceptive info being processed. (Spindles, joint receptors) and Visceral input

Question 21

Lamina 6 function?

Answer 21

Proprioceptive

Question 22

Lamina 1-6 are located in?

Answer 22

Dorsal horn

Question 23

C1-C3 dorsal horn is the site of convergence of _____ and cord afferents; basis for pain referral from the neck to _____ territory and vice versa.

Answer 23

Trigeminal

Question 24

Lamina 7 is located in In
intermediate
gray
and
ventral


horn
. Which will include? ( 3)

Answer 24

• Clarke’s nucleus (C8-T3 ONLY)
• Intermediate lateral cell column
• Sacral autonomic nucleus (S2,3,4)

Question 25

Lamina 8 function?

Answer 25

Proprioceptive input

Question 26

Lamina 9 has alpha and gamma motor neurons. Lateral and medial groups will innervate? Function of central?

Answer 26

Medial- Axial muscles

Lateral- Extremities

Phrenic and accessory nuclei

Question 27

Lamina 10 function?

Answer 27

Sensory input from viscera and nociceptive