Brain Anatomy Flashcards
Where is the brain located?
The cranial vault which provides protection
How much does the brain weigh?
1.3kg
What are the tissues of the brain divided into?
Grey and White matter
What is the grey matter composed of?
-Neuronal cell bodies
-Dendrites
-Unmyelinated axons
-Axon terminals
-Neuroglia
Where is the grey matter located in the brain?
On the outside of the white matter
Where is the white matter located in the brain?
On the inside to the grey matter
What is the white matter composed of?
Myelinated axons
What do the brain and spinal chord develop from?
Ectoderm (neural tube)
Where is the grey and white matter located in the spinal chord?
Grey matter is innermost and white matter is outermost (in reverse to the brain)
What does the forebrain consist of?
-Cerebrum
-Lateral Ventricles
-Thalamus
-Hypothalamus (diencephalon)
What does the hind brain consist of?
-Cerebellum
-Pona
-Medulla Oblongata
What are the three regions of the ectoderm?
-Forebrain
-Midbrain
-Hindbrain
What is the function of the cranial meninges?
To provide further protection for the brain by acting as a cushion between the brain and the skull vault
What are the meninges?
Three layers of connective tissue that surround the brain and spinal chord
