Lecture 6

Question 1

List the functions of the nervous system

Answer 1

Sensory, motor and cognitive

Question 2

What makes up the CNS?

Answer 2

Brain and spinal cord

Question 3

What makes up the PNS?

Answer 3

SAME DAVE.

Question 4

Number of cranial nerves?

Answer 4

12

Question 5

Number of spinal nerves?

Answer 5

31

Question 6

What is sympathetic system?

Answer 6

Fight or flight

Question 7

What is parasympathetic system?

Answer 7

Rest and digest

Question 8

What are the stages in neural tube development?

Answer 8

neural plate, neural folds, neural tube

Question 9

What are the subdivisions of cranial end of tube?

Answer 9

Tripartite brain, pentapartite

Question 10

What is the adult derivative of lumina?

Answer 10

lateral ventricles

Question 11

What is the adult derivative of floor?

Answer 11

Basal ganglia, olfactory lobes and nerves

Question 12

What is the adult derivative of roof?

Answer 12

cerebral hemispheres

Question 13

What is the adult derivative of lumen?

Answer 13

third ventricle

Question 14

What is the adult derivative of roof in diencephalon primordia?

Answer 14

epithalamus

Question 15

What is the adult derivative of walls in diencephalon primordia?

Answer 15

thalamus

Question 16

What is the adult derivative of floor in diencephalon primordia?

Answer 16

hypothalamus and infundibulum

Question 17

What is the adult derivative of floor in mesencephalon primordia?

Answer 17

tegmentum

Question 18

What is the adult derivative of roof in mesencephalon primordia?

Answer 18

tectum

Question 19

What is the adult derivative of lumen in mesencephalon primordia?

Answer 19

cerebral aqueduct

Question 20

What is the adult derivative of lumen in metencephalon primordia?

Answer 20

part of fourth ventricle

Question 21

What is the adult derivative of roof in metencephalon primordia?

Answer 21

cerebellum

Question 22

What is the adult derivative of floor in metencephalon primordia?

Answer 22

pons

Question 23

What is the adult derivative of lumen in myencephalon primordia?

Answer 23

rest of fourth ventricle

Question 24

What is the adult derivative of main part in myencephalon primordia?

Answer 24

medulla oblongata

Question 25

What is the adult derivative of roof in myencephalon primordia?

Answer 25

posterior choroid plexus

Question 26

The cell body is what type of unit?

Answer 26

trophic unit

Question 27

The dendrites are what type of unit?

Answer 27

Receptive unit

Question 28

The axon is what type of unit?

Answer 28

Conductive unit

Question 29

What are the cell body organelles?

Answer 29

nucleus, golgi apparatus, RER, ribosomes and nissl substance

Question 30

What are the characteristics of dendrites?

Answer 30

i. Branches off the cell body that carry information to the cell body ii. Usually several to many iii. Relatively short iv. Often branched v. Have receptors for neurotransmitter vi. Conduct local potentials.

Question 31

What are the characteristics of an axon?

Answer 31

i. Part of the neuron that carries information to another neuron or muscle cell ii. Usually relatively long iii. Single iv. Conducts action potential v. Cell membrane is called axolemma vi. Cytoplasm is called axoplasm

Question 32

What are the different axonal transport?

Answer 32

Anterograde, retrograde, slow transport, fast transport

Question 33

What is the only part of the neuron that is ever myelinated?

Answer 33

Axon

Question 34

What does the axon contain?

Answer 34

Mitochondria, neurofilaments, neurotubules

Question 35

Myelin is formed by what?

Answer 35

Schwann cells.

Question 36

What is the neurolemma on an axon made up of?

Answer 36

schwann cells

Question 37

Aggregation of dendrites and nerve cell bodies in the CNS is called what?

Answer 37

Nucleus

Question 38

Aggregation of dendrites and nerve cell bodies in the PNS is called PNS?

Answer 38

Ganglion

Question 39

Bundle of fibers (axons) in the PNS refers to what?

Answer 39

Nerve

Question 40

Bundle of fibers (axons) in the CNS refers to what?

Answer 40

Tract

Question 41

Tract in the CNS that crosses from one side to another refers to what?

Answer 41

Commissure

Question 42

Areas of myelinated axons refers to what?

Answer 42

white matter

Question 43

areas of unmyelinated axons, cell bodies and dendrites refers to what?

Answer 43

Gray matter

Question 44

In terms of the reflex arc what are the afferent (sensory) pathways?

Answer 44

somatic and visceral

Question 45

In terms of the reflex arc what are the efferent (motor) pathways?

Answer 45

Somatic and Visceral

Question 46

What are the components of a synapse?

Answer 46

Presynaptic membrane, synaptic cleft, postsynaptic membrane

Question 47

What are the contents of the axillary sheath?

Answer 47

Axillary artery, axillary vein and brachial plexus