BIOL371 LESSON 1 EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS GRADED A++
What is the suture between frontal and parietal regions of the brain?
Coronal
What is the suture connecting parietal regions?
sagittal
What are the meninges?
membranes that protect the brain
What is the dura mater?
the thickest layer of meninges right below skull
What is the arachnoid mater?
spiderweb-like structures in the meninges that contain no blood vessels or nerve
structures
What is in the subarachnoid space?
cerebrospinal fluid
What is the pia mater?
innermost layer of meninges that wraps brain very tightly, contains blood vessels which
dive into perivascular space
What is the main function of CSF?
protects brain from physical/chemical damage
Where is CSF found?
, inside the central nervous system
What are the ventricles of the ventricular system?
two lateral ventricles, third ventricle, and fourth ventricle
Where does CSF circulate?
structures in the ventricular system
What does CSF do?
absorbs impact, regulates water and salt levels, dispoes of metabolic waste and
potential neurotoxins during sleep, and secretes trophic factors
What do trophic factors do?
help neurons to survive, regenerate axons/dendrites, induce birth of neurons in
hippocampus
What is the glymphatic system?
CSF is pumped into and through brain tissue using force provided by pulsing blood
vessels
How is the rate of flow in the glymphatic system modified and controlled by?
Glial cells and circadian control
How does the glymphatic system provide extra protection to the brain?
thoroughly washing brain of waste
When is more volume of CSF produced per minute?
when anaesthetics are given
What does the blood brain barrier consist of?
epithelial cells with tight junctions between them to prevent water and solute movement
What do astrocytes do for the BBB?
WITH COMPLETE SOLUTIONS GRADED A++
What is the suture between frontal and parietal regions of the brain?
Coronal
What is the suture connecting parietal regions?
sagittal
What are the meninges?
membranes that protect the brain
What is the dura mater?
the thickest layer of meninges right below skull
What is the arachnoid mater?
spiderweb-like structures in the meninges that contain no blood vessels or nerve
structures
What is in the subarachnoid space?
cerebrospinal fluid
What is the pia mater?
innermost layer of meninges that wraps brain very tightly, contains blood vessels which
dive into perivascular space
What is the main function of CSF?
protects brain from physical/chemical damage
Where is CSF found?
, inside the central nervous system
What are the ventricles of the ventricular system?
two lateral ventricles, third ventricle, and fourth ventricle
Where does CSF circulate?
structures in the ventricular system
What does CSF do?
absorbs impact, regulates water and salt levels, dispoes of metabolic waste and
potential neurotoxins during sleep, and secretes trophic factors
What do trophic factors do?
help neurons to survive, regenerate axons/dendrites, induce birth of neurons in
hippocampus
What is the glymphatic system?
CSF is pumped into and through brain tissue using force provided by pulsing blood
vessels
How is the rate of flow in the glymphatic system modified and controlled by?
Glial cells and circadian control
How does the glymphatic system provide extra protection to the brain?
thoroughly washing brain of waste
When is more volume of CSF produced per minute?
when anaesthetics are given
What does the blood brain barrier consist of?
epithelial cells with tight junctions between them to prevent water and solute movement
What do astrocytes do for the BBB?
