The Brain And Meninges Of The Brain

The Brain

Meninges – connective tissue covering the brain

Dura mater – the substance that covers the brain and the spinal cord

• Endosteal layer – resembles the periosteum of bones, provides blood vessels

• Meningeal layer – dense, fibrous membrane

• Falx cerebri – a large crescent shaped fold that is amid cerebral hemispheres

• Tentorium cerebelli – horizontal large crescent crease attached to the internal surface of the occipital bone

• Falx cerebelli - a fold that divides the cerebellar hemispheres and is attached internally to the occipital bone and is small and crescent shaped

• Subdural space – an area between the dura mater and the arachnoid mater that is filled with fluid

Arachnoid mater – a shielding membrane that covers the brain

• Subarachnoid space – area between the pia mater and the arachnoid mater

• Cerebrospinal fluid – clear fluid found in brain and spinal cord

Pia mater – fragile, innermost layer of meninges

Telencephalon – the cerebrum arises from here

• Cerebral hemispheres - the divided regions of the brain

Diencephalon – sensory information; has the three subsequent parts

• Thalamus – sensory information to the cortex

• Hypothalamus – master system for endocrine system and releases or inhibits hormones to be in charge of the pituitary gland

• Third ventricle – a hollow space filled with cerebrospinal fluid; produces the cerebrospinal fluid

Mesencephalon – concerned with vision, hearing and motor functions

• Cerebral peduncles – makes of the front sides of the midbrain

• Corpora quadrigemina - two groups of colliculi with white matter on the outside and gray matter on the inside

• Mesencephalic aqueduct – contains CSF and joint the third and fourth ventricles

Metencephalon – is composed of the three...

... middle of paper ...

..., for hearing and balance

• Glossopharyngeal (IX) – posterior cranial fossa and neck, jugular foramen, allows for taste from the back third region of the tongue and general sensations like general sensations from the middle ear

• Vagus (X) – jugular foramen; motor functions and general functions; controls muscles of the hard palate; provides sensation for thoracic and abdominal viscera

• Accessory (XI) – jugular foramen and foramen magnum; motor functions, distribute muscles of the hard palate and connects to the spinal cord

• Hypoglossal (XII) – neck, oral cavity, posterior cranial fossa, hypoglossal canal, gives nerves to most of the tongue muscles and motor skills

Sources:

APR McGraw- Hill Connect http://www.merriam-webster.com/medlineplus/medial+geniculate+body http://en.wikipedia.org/wiki/Sensory_cortex

http://www.indiana.edu/~p1013447/dictionary/assn_cor.htm