Anatomy Flashcards
number of cervical spinal nerve pairs?
8
total number of spinal nerve pairs?
31
Motor axons pass through which horn?
Anterior (AM)
area of skin supplied with sensory innervation from a single spinal nerve
dermatome
skeletal muscles supplied with motor innervation from a single spinal nerve
myotome
male nipple dermatome
T4
Umbilicus dermatome
T10
posterior scalp, neck + shoulder dermatome
C2-4
upper limb dermatome
C5-T1
Lower limb, gluteal and perineum dermatome
L2-Co1
Parasympathetic outflow nerves
CN III, VII, IX + X
Sacral spinal nerves
Intervertebral discs form what length of the spine?
20-25%
ligament that connects to laminae posterior to spinal cord?
ligamentum Flavum
Where is caudal anaesthesia injected?
sacral hiatus (inferior aspect of L5)
Deepest of the meninges?
Pia Mater
Most superficial of the meninges?
Dura Mater (it’s more durable, protective)
