Unit 13 Lecture Study Guide – Nervous System Part Ii

1. What are the 2 major divisions of the Nervous System?

Central vs. Peripheral

2. What are the 2 major divisions of the central nervous system (CNS)?

Brain and spinal cord

3. What are the 2 major divisions of the peripheral nervous system (PNS)?

Somatic and autonomic

4. Differentiate between the autonomic and somatic nervous systems.

Somatic is nerves to/from spinal cord and autonomic is when you control the involuntary functions

5. List the 3 types of neurons found in the PNS and their function.

Motor: CNS to muscles and organs; Sensory receptors to CNS; Interneurons: connections within CNS

6. Differentiate between the sympathetic and parasympathetic nervous system. Be sure to include at least 3 examples of responses controlled by each.

Sympathetic: Fight or flight, releases adrenaline and noradrenaline, increases heart rate and blood pressure, increases blood flow to skeletal muscles

Parasympathetic: rest and digest, calms body to conserve and maintain energy, lowers heartbeat, breathing rate, blood pressure

7. What is lateralization and how are body functions affected by it?

It is when the left and right sides of the brain are separated; the left side controls the language while the right side contains math and music

8. Describe the principle of contralateral organization.

When sensory data crosses over in pathways leading to the cortex

9. List the 4 lobes of each hemisphere and its basic functions.

Frontal: important planning and sequencing areas, Broca’s area for speech

Parietal: hand-eye coordination, eye movements, and attention

Occipital: contains primary visual cortex

Temporal: speech, face, word recognitions, and memory formation

10. What is the corpus callosum? What happens if it is cut?

Major pathway between hemispheres, hemispheres cant exchange data

11. What is the conjunctiva?

Membrane which produces mucous that lubricates the eye and prevents dryness

12. List the function and location of the following structures:...