Lecture 1 Flashcards
What are the three planes of disection?
Sagittal
Frontal (Coronal)
Horizontal (Transverse)
What is the name for the tilt of the midbrain and at about what angle does it tilt?
Cephalic Flexture
70-80 Degrees
Sulcus
Groove/ Valley in the brain
Gyrus
Hill/Bump in the brain
Fissure
Deep sulcus
Ipsilateral
Same side
Contralateral
Opposite side
Bilateral
both sides
Decussate or Decussation
Movement of fiber pathways across the midline connecting non-homologous structures in the Central Nervous System (CNS)
Commissure or Commissural
Fiber pathways across the midline connecting homologous structures in the CNS
What are the 4 main lobes of the brain?
Frontal
Parietal
Temporal
Occipital
What seperates the CNS from the PNS?
Bone
What is the name for incoming useful information to the CNS from the PNS?
Afferent
What is the name for information sent from the CNS back to the PNS?
Efferent
How do Primary afferent/efferent enter/leave the CNS
Ipsilaterally at the level they enter/exit
Somatic Nervous System contains?
Sensory signals
Voluntary actions
Autonomic Nervous System in made up of what other systems?
Sympathetic
Parasympathetic
Enteric
How big is a micron?
A millionth of a meter
Mininges are made up of what kind of tissue?
Connective tissue
What fluid is between the mininges? What are the names of these layers?
Cerebrospinal fluid
Subarchnoid Space & Pia Mater
What is the thickest, outer layer that provides mechanical strength and is pain sensitive?
Dura Mater
What is the second layer of meninges that is filled with a majority of the CSF? It is spider web like.
Arachnoid Space
What is the innermost later of meninges? It follows the contours of the brain.
Pia Mater
What is the normal resting pressure of CSF?
150-180 mm H2O
