Nervous System

Question 1

Name the four effectors.

Answer 1

Skeletal Muscle
Smooth Muscle
Cardiac Muscle
Glands

Question 2

What is the difference between the nervous system and the endocrine system?

Answer 2

Nervous system
Quick to respond but the changes are short lived.
Voltage regulated

Endocrine system
Slow to respond but changes last long
Chemically (hormone) regulated

Both work together

Question 3

What body parts does the CNS contain?

Answer 3

Brain and the spinal cord

Question 4

3 Basic Functions of Nervous System

Answer 4

1. Sensory Function - Gathering info
2. Integration Center - processing center - (CNS)
3. Motor - Response from gathering info

Question 5

Difference between the Central Nervous system and the peripheral nervous system?

Answer 5

CNS is for integration and PNS is for sensory/motor

Question 6

What nerves are in the Peripheral Nervous system (PNS)

Answer 6

Cranial Nerves (12 pairs)

Spinal Nerves (31 pairs) - mixed nerves

• 8 cervical (C1-C8)
• 12 thoracic (T1-T12)
• 5 lumbar (L1-L5)
• 5 Sacral (S1-S5)
• 1 coccyx (C0)

Question 7

Afferent vs. Efferent

Answer 7

Afferent is sensory (delivers information to the CNS)

Efferent is motor (delivers information from CNS to an effector)

Question 8

What effector make up the somatic/autonomic nervous systems?

Answer 8

Somatic is voluntary, which is skeletal Muscle

Autonomic is involuntary, which contains
Cardiac and smooth muscle as well as glands

Question 9

Sympathetic/parasympathetic; what is the purpose and what do they do?

Answer 9

Sympathetic (fight or flight) increases HR and respiration and decreases digestion and diuresis

Parasympathetic (rest/repair) lowers HR/respiration, increases digestion and diuresis