Mod 6 - Nervous system overview – BRAIN Flashcards
Role of meninges
Covers the outside surface of the brain, offering protection
What are the three layers of meninges that cover the brain ? (The layers are the same as in the spinal cord)
Dura mater - outter layer
Arachnoid mater - middle layer
Pia mater - Clings tightly to the surface of the brain
(DAP)
What are the four chambers of the brain called?
Ventricles
What is the name of the clear colourless fluid bathing the brain and spinal cord, and what is its role?
Cerebrospinal fluid (CSF) - Acts as a cushion for the brain, and constantly flows through the CNS, providing nourishment and helping to remove metabolic wastes
How is cerebrospinal fluid (CSF) produced?
Formed from blood by the choroid plexus
What are the four major regions the brain is divided into?
Cerebrum, diencephalon, cerebellum, brainstem
What divides the cerebrum into right and left cerebral hemispheres?
A deep groove called longitudinal fissure
What connects the two hemispheres of the cerebrum?
Corpus callosum
What is the role of the gray matter within the cerebrum?
Play a role in the control of movement
Why are there surface folds on the brain?
Allow more gray matter to be packed into the small area of the skull
Your ability to think, remember, feel, use judgment, and move can be credited to the
Cerebrum
What is the role of the frontal lobe?
Governs voluntary movements, memory, emotion, decision-making, reasoning and aggression
What is the role of the parietal lobe?
Receives and interprets bodily sensations, and proprioception (awareness of the body’s position)
What is the role of the temporal lobe?
Hearing, smell, learning, memory, emotional behavior, and visual recognition
What is the role of the insula?
Perception, motor control, self-awareness, and cognitive functioning
