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A/P I: CNS Part III
Brain related structures and systems
25
Anatomy
Undergraduate 2
10/11/2009

Additional Anatomy Flashcards

 


 

Cards

Term
Emotional center
Definition
Limbic System
Term
Function of Basal Nuclei
Definition
Coordinating motor movements and posture.
Term
Parts of the brain included in the Limbic System
Definition
  1. Basal nuclei
  2. Medial surface of each lobe of cebral cortex
  3. Anterior and medial nuclei of the thalamus
  4. Mammilary body of the hypothalamus
  5. The olfactory cortex

 

Term
Functions of the Limbic System
Definition
  1. Control visceral functions through ANS and endocrine system.
  2. Correlation of emotions and memory
  3. Involved in sensations of pleasure and pain.
  4. Basic survival instincts including acquisition of food, water and reproduction.
  5. Sensation of pheromones.
  6. Satisfaction center of brain at cingulate gyrus.
Term
Chemical secreted into the environment that alters the physiology of another individual.
Definition
Pheromones
Term
Connective tissue membranes that protect the brain.
Definition
Meninges
Term
Four parts of Meninges
Definition

Dura mater

Arachnoid mater

Pia mater

Spaces

Term
Dura mater
Definition
Superficial membrane of meninges
Term
Pia mater
Definition
Membrane bound tightly to the brain.
Term
Two spaces and their fluids in meninges.
Definition

Subdural: serous fluid

Subarachnoid: cerebrospinal fluid

Term
Is produced from the blood in the choroid plexus of each ventricle.
Definition
Cerebrospinal fluid (CSF)
Term
Pathway of CSF in CNS
Definition

      Lateral ventrical

--> Third ventrical

--> Fourth ventrical

--> Subarachnoid Space

--> Dural Sinuses

Term
Fluid similar to serum that bathes the brain and spinal cord and acts as a cushion around CNS.
Definition
Cerebrospinal fluid
Term
Percentage of blood supply that goes to the brain.
Definition
15-20%
Term
Has a high metabolic rate and depends on constant supply of oxygen and glucose.
Definition
Brain
Term
Interruption of blood supply to brain can lead to...
Definition
Unconciousness and irreversible brain damage.
Term
Capillary endothelial cells along with astrocytes and basement membrane that allows for selectivity.
Definition
Blood-Brain Barrier
Term
Sulcus
Definition
Grooves of the brain
Term
Gyrus
Definition
Ridges of the brain
Term
Gray matter
Definition

periferal in brain, medial in spinal cord

unmyelinated axons

Term
White Matter
Definition

Periferal in spinal cord, medial in brain.

Myelinated axons.

Term
descussation
Definition
crossing over of nerves in medulla oblongata
Term
corpus callosum
Definition
Major area of white matter that connects left and right halves of the brain.
Term
pituitary gland
Definition
Known as master endocrine gland because it regulates activities of most other glands.
Term
Neurons within the CNS maintain this to take up glucose, whereas every other area of the body uses insulin.
Definition
Na+/Glucose symports
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