Human Physiology Chapter 9 Organization

Front 1

Spinal Cord

Root ganglion (branching out)
Horn (is the gray matter inside)
Ventral root - Carries motor (efferent)
Dorsal Root - carries sensory (afferent)

Back 1

Front 2

White matter in Spine
info to and from the brain.

Ascending tracts - the dorsal,, alot part. Back and side

Descending tracts - the ventral, small circle blue parts. alot @ the back and some on the side. Circular structure.

Back 2

Front 3

Brain's 4 lobes.
Frontal, parietal, occipital, temporal lobe.


Brain function
1. sensory system
2. cognitive system
3. behavioral system

Back 3

Front 4

Looping of axons is what you see here.

3 and 5 are superior/inferior collicoli.

Its for the 3D map of the space around you, the inferior one is a “map” of auditories.

Back 4

Front 5

Brain stem

thalamus
pons
medulla oblongata
Reticular formation (clusters of neurons inside brainstem)

Back 5

Top of spinal cord leading to "primitive brain"

Front 6

Reticular Formation
Neuromodulatory Role

Back 6

Diffuse groups of neurons.

**also involved in
arousal and
sleep cycles

automatic body functions:
breathing, BP, muscle tone, pain modulation

Front 7

Summary of All major parts
*Cerebrum
*Diencephalon
*Cerebellum
*Brain Stem

Back 7

Front 8

Diancephalon

*thalamus
*hypothalamus
*pituitary
*pineal gland

Back 8

primitive brain -= lots of reflex
functions

hypothalamus = link to rest of
body & endocrine control.

Front 9

Cerebrum (Frontal, parietal, occipital, temporal lobes)

Cerebral cortex
Basal ganglia
Limbic systems (amygdala, hippocampus)

Back 9

Front 10

Limbic System


cingulate gyrus
amygdala
hippocampus

Back 10

very primitive
links emotion to higher
order cognition/
reasoning

Front 11

Language - Broca and Wernicke's area.

a. speaking a written word

b. speaking a heard word

Back 11