Chpt. 15: Nervous System (Brain)

what are the major parts of the brain?

• cerebrum

• cerebellum

• midbrain

• pons

• medulla oblongata

what are the layers of the meninges?

1) dura mater = most superficial
2) arachnoid mater
3) pia mater = deep

what is the longitudinal fissure? where is it? function?

• right down middle of cerebrum

• splits brain into two hemispheres (L&R)

identify and describe layers under the skull

two important parts of dura mater

• falx cerebri: separate 2 hemispheres

  • tentorium cerebelli: separates cerebrum/cerebellum

• falx cerebelli: hemispheres of cerebellum

what are the spaces of between the skull and brain? what are some potential injuries that could occur in each space?

list order ventricle circulation system

what is the function of the CSF (cerebral spinal fluid)?

• cushioning

• nourishment

• waste removal

identify color matters of the brain

• gray matter: superficial layer

• white matter: inner most layer

  • CNS: cluster of neurons = nucleus, bundles of axons = tract

  • PNS: ganglions, nerves

difference between sulcus and gyrus

• sulcus: shallow crack

• gyrus: top layer of wrinkles

identify and describe function of each lobe in the brain

identify and describe function of the different cortex/insula

identify and describe function of inside parts of brain/cerebrum

functions of the two parts of limbic system

• hippocampus: memory formation

• amygdala: emotions

identify and describe functions of parts of diencephalon

**correction: inferior colliculi = auditory reflex