1. The Nervous System

2. The Reflex Arc
________ – rapid, predictable, and involuntary responses to stimuli
Reflex arc – direct route from a _______ neuron, to an ____________, to an ________
Figure 7.11a

3. Cerebral Hemispheres (Cerebrum)
Paired (left and right) superior parts of the brain
Include more than ______________________________
The surface is made of ridges (_____) and grooves (______)
Figure 7.13a

4. Lobes of the Cerebrum
__________ (deep grooves) divide the cerebrum into lobes
Surface lobes of the cerebrum
___________

5. Lobes of the Cerebrum
Figure 7.15a

6. Specialized Areas of the Cerebrum
Somatic _______ area – receives impulses from the body’s sensory receptors
Primary ______area – sends impulses to _________ ________
__________– involved in our ability to speak

7. Sensory and Motor Areas of the Cerebral Cortex
Figure 7.14

8. Specialized Areas of the Cerebrum
Figure 7.13c

9. Composed mostly of ________ ______ ________
Layers of the Cerebrum
________ matter
Outer layer
Composed mostly of ________ ______ ________
Figure 7.13a

10. Layers of the Cerebrum _______ ______
______ _____ inside the gray matter
Example: __________
____________ connects hemispheres
Figure 7.13a

11. Diencephalon Sits on top of the brain stem
Enclosed by the cerebral heispheres
Made of three parts
___________

12. Diencephalon
Figure 7.15

13. Surrounds the _______ ventricle
Thalamus
Surrounds the _______ ventricle
The relay station for _________ __________
Transfers impulses to the correct part of the cortex for localization and interpretation

14. Important autonomic nervous system center
Hypothalamus
Under the thalamus
Important autonomic nervous system center
Helps _______ ________ ___________
Controls _______ ____________
Regulates _____________

15. An important part of the limbic system (emotions)
Hypothalamus
An important part of the limbic system (emotions)
The _________ _______is attached to the hypothalamus

16. Forms the roof of the third ventricle
Epithalamus
Forms the roof of the third ventricle
Houses the ________ ____(an endocrine gland)
Includes the ________ ________– forms ______________ ___________

17. Attaches to the spinal cord Parts of the brain stem __________ _______
__________ ____________

18. Brain Stem
Figure 7.15a

19. Midbrain Mostly composed of tracts of nerve fibers
Has two bulging fiber tracts – _________ ____________
Has four rounded protrusions – ___________ ________________
Reflex centers for _______ and _________

20. The bulging center part of the brain stem
Pons
The bulging center part of the brain stem
Mostly composed of _______ ______
Includes _______ involved in the control of ____________

21. Medulla Oblongata The lowest part of the brain stem
Merges into the spinal cord
Includes important fiber tracts
Contains important control centers
______________________
__________