HIGHER CENTER: Spinal Cord Flashcards
SUBDIVISION OF THE SPINAL CORD: 5 levels of the spinal cord
8 nerves
controls tissues or parts of body and muscles of the upper extremities
cervical
SUBDIVISION OF THE SPINAL CORD: 5 levels of the spinal
12 spinal nerves
innervates the chest and abdomen
chest area
thoracic neurons in spinal cord/controls abdominal muscles
thoracic
SUBDIVISION OF THE SPINAL CORD: 5 levels of the spinal
5 Spinal nerves
innervates the lower extremities
lower extremities and pelvic region but mostly controls the lower extremities
lumbar
SUBDIVISION OF THE SPINAL CORD: 5 levels of the spinal
5 spinal nerves
for the bowel, bladder, and sexual function
controls the pelvic region
sacral
sensory in function
afferent signals
destruction —> anasthesia (without sensation)
dorsal horn of the spinal cord
POSTERIOR HORN OF THE SPINAL CORD
motor in function
efferent signals
destruction —-> paralysis
ventral horn of the spinal cord
ANTERIOR HORN OF THE SPINAL CORD
REXED LAMINAE
Sensory Laminae;
Located
Dorsal/Posteriorly
LAMINA 1-6
REXED LAMINAE
Both sensory and motor (But more on Motor)
Lateral Horn/Intermedio Lateral Column (not horn)
LAMINA 7
REXED LAMINAE
located ventral anteriorly
ventral Horn/Anterior Horn
MOTOR
Phlegia (Paralysis)
LAMINA 8-9
REXED LAMINAE
surrounds the central canal/No known function
LAMINA 10