Intro to Neuro

Question 1

Components of CNS

Answer 1

• Cerebrum
• Diencephalon
• Cerebellum
• Brain Stem (midbrain, pons, medulla oblongata)
• Spinal Cord

Question 2

The CNS is surrounded by 3 connective tissue membranes called ____

Answer 2

meninges

Question 3

What are the layers of mininges from inside out?

Answer 3

pia, arachnoid, dura mater

Question 4

what are the leptomeninges?

Answer 4

pia + arachnoid mater

Question 5

what is the pachymeninx?

Answer 5

dura mater

Question 6

Structure

Dura mater

Answer 6

Cranial dura - double layer (includes spinal dura)
Spinal dura continuous with inner cranial dura

Question 7

what is the space between pia and arachnoid maters?

Answer 7

subarachnoid space

Question 8

what is the subarachnoid space filled with?

Answer 8

cerebrospinal fluid

Question 9

what is the space between arachnoid and dura maters?

Answer 9

subdural space

Question 10

what is the space outside the dura?

Answer 10

epidural space

Question 11

subdural space and epidural space are ____ ____

Answer 11

potential spaces

Question 12

Components of PNS

Answer 12

processes of CNS forming cranial nerves, and spinal nerves

Question 13

cranial nerves are associated with the ____

Answer 13

brainstem

Question 14

spinal nerves are associated with the ____

Answer 14

spinal cord

Question 15

connective tissue layer covering each myelinated neuron

Answer 15

endoneurium

Question 16

Groups of nerve fibers form ____

Answer 16

fascicles

Question 17

connective tissue layer covering fascicles

Answer 17

perineurium

Question 18

fascicles bound together form a ____

Answer 18

nerve

Question 19

connective tissue layer covering nerves

Answer 19

epineurium

Question 20

layers of a neuron

Answer 20

neurons [endoneurium] -> fascicles [perineurium] -> nerve [epineurium]

Question 21

the term ‘somatic’ refers to ____, ____, ____

Answer 21

skin, skeletal muscle, bone

Question 22

somatic efferent information is sent from the ____ to ____

Answer 22

brain to skeletal muscle for movement

Question 23

somatic afferent information

Answer 23

gathered by receptors in skin, skeletal muscle and bone, and sent to the brain for analysis

Question 24

What is another term for the visceral NS?

Answer 24

autonomic

Question 24

the term 'visceral' refers to ____, ____, ____, ____

Answer 24

smooth muscle, cardiac muscle, glands and organs

Question 25

visceral afferent information

Answer 25

gathered by receptors in smooth/cardiac muscle, glands & organs and sent to brain for analysis

Question 26

visceral efferent information

Answer 26

sent through the endocrine and autonomic NS

Question 27

what system is responsible for the feeling of hunger?

Answer 27

visceral (afferent)

Question 28

what system is responsible for the knee-jerk reflex?

Answer 28

somatic

Question 29

what system sends information from the brain to skeletal muscle for movement?

Answer 29

somatic efferent

Question 30

what system gathers information from skin to be sent to the brain?

Answer 30

somatic afferent

Question 31

what system gathers information in smooth muscle to be sent to the brain?

Answer 31

visceral afferent

Question 32

what system sends information from the brain through the endocrine and autonomic nervous systems?

Answer 32

visceral efferent