Singh's Stuff

Question 1

Multipolar neurons are usually

Answer 1

Motor neurons

Question 2

Olfactory and trochlear neurons are

Answer 2

Bipolar

Question 3

Other sensory besides olfactory and trochlear neurons as

Answer 3

Pseudo-unipolar

Question 4

When a neuron is damaged or gets old, it will often make a lot of (visible)

Answer 4

NISSL bodies (to the point in damaged that the nucleus is hard to see)

Question 5

Only neurons that divide are

Answer 5

Olfactory epithelium. (others can grow but not divide

Question 6

Movement macromolecules and organelles in the axon can be

Answer 6

Antegrade or retrograde

Question 7

Retrograde movement in the axon is from

Answer 7

Periphery to the perikaryon

Question 8

Telodendrocytes ?!?

Answer 8

There are lots of little dendites all together at the end of an axon - not sure of the actual definition of these

Question 9

A synapse can be

Answer 9

Axosomatic, axodendritic, axoaxonic

Question 10

Neurotransmitters determine the type of action (true or false)

Answer 10

False. Receptors do

Question 11

Glutamate is associated with what type of synapses

Answer 11

Excitatory

Question 12

Glycine is associated with what type of synapses

Answer 12

Inhibitory

Question 13

Astrocyte and Oligodenrocyte in the CNS correspond to

Answer 13

Satelline cells and Schwann cells in the PNS

Question 14

Function of Schwann cells in the PNS

Answer 14

Ensheath or myelinate axon bodies

Question 15

Function of the satelline cells in the PNS

Answer 15

Encapsulate neuron bodies in ganglia

Question 16

The Ologidendrocyte can myelinate

Answer 16

Multiple nerves. Unlike the schwann cells in the PNS

Question 17

2 differences between oligodendrocytes and astrocytes

Answer 17

Oligodendrocyte - small circular nucleus with few branches, Astrocyte - largest cell with ovoid nucleus

Question 18

Oligodendrocyte ensheath _____ and astrocytes ensheath _______

Answer 18

Axons, synapses

Question 19

Microglia characteristics

Answer 19

Sparse, elongated nucleus, small elongated cell with polar processes

Question 20

Function of microglial cell

Answer 20

Turns into macrophage of the CNS

Question 21

Ependymal cells

Answer 21

Line the ventricles and the choroid plexus, simple cuboidal to columnar

Question 22

Cerebellum is composed of

Answer 22

Folia and sulci

Question 23

Function of the cerebellum

Answer 23

Regulates muscle tone, posture, coordination

Question 24

Composed of 4 layers

Answer 24

Outer molecular, purkinje cell layer, Granule layer and white matter on the innermost side

Question 25

Purkinje cells send axons to and dendrites to

Answer 25

White matter and molecular layer

Question 26

Granule cells are _____ in nature

Answer 26

Excitatory

Question 27

Input fibers to cerebellum

Answer 27

Climbing and mossy fibers

Question 28

Spinal cord is divided into

Answer 28

Dorsal and ventral roots, ventral median groove, dorsal median septum and the central canal with ependymal cells

Question 29

Grey matter in the spinal cord is

Answer 29

In the center (opposite to the cerebrum)

Question 30

Ventral horn of spinal cord contains

Answer 30

Somatic efferents

Question 31

Dorsal horn of spinal cord contains

Answer 31

Interneurons for afferents (the cell bodies are outside the spinal cord though

Question 32

Lateral gray matter of spinal cord contains

Answer 32

Sympathetic pre-ganglionic neurons

Question 33

White matter in the spinal cord forms

Answer 33

Dorsal, ventral and lateral funiculi, ascending and descending tracts

Question 34

Axons (dorsal and ventral in the root)

Answer 34

Terminate or originate from the horn (depending on which direction you are going for eff or aff)