modules 6 and 7

Question 1

from soma to terminals

Answer 1

Anterograde Transport

Question 2

from terminals to atom hillock

Answer 2

retrograde transport

Question 3

Multipolar neurons

Answer 3

most abundant in the body

Question 4

Difference between electrical junction and chemical junction

Answer 4

Electrical- Gap junction

Chemical- more numerous synaptic cleft

Question 5

Snare protein

Answer 5

on membrane of vesicle and cell that fuse the membrane and the cell together causing exocytosis

Question 6

nicotinic type two ligand gated channel

Answer 6

Neuron to neuron

Na+ channel on the post synaptic membrane

Question 7

Nicotinic type one

Answer 7

Neuron to muscle

Question 8

Ipsp

Answer 8

Hyperpolarization

Question 9

Epsp

Answer 9

Depolarization

Question 10

Temporal summation

Answer 10

many signals through one

Question 11

spatial summation

Answer 11

Faster

signals through many different

Question 12

if ion are close to the hillock then the signal will be

Answer 12

Strong

Question 13

Astrocyte

Answer 13

• provides nutrients from blood to neuron
• forms blood brain barrier
• Glycogen storage
• Soak up K+ from ECF

Question 14

Ependymal Cells

Answer 14

• produce cerebral spinal fluid

- line the ventricles

Question 15

Microglial cell

Answer 15

Respond to infections

-eat damage cells in the brain

Question 16

Oligodendrocytes

Answer 16

Provides myelin sheaths for many axons at one time in the CNS

Question 17

Satellite cells

Answer 17

Protect the soma

PNS

Question 18

what shortens in a sarcomere

Answer 18

H-zone and the I-band

Question 19

What does a bullet travel through before it hits your bone

Answer 19

Epimysium- fasiculous- perimysium- fascicoli-endomysium- muscle fiber

Question 20

sarcolemma

Answer 20

muscle cell membrane

Question 21

DHPR

Answer 21

Hit with action potential will open hole in the Sarcplasmic reticulum and allows Ca++ to flow out

Question 22

Serca pump

Answer 22

Ca++ ATPase pump

Question 23

Duchenne Muscular Dystrophy

Answer 23

Wheelchairs are needed at 7-12 years of age

Doesn’t have Dystrophin

Question 24

Dystrophin

Answer 24

transfers energy from the shortening of sarcomeres to the entire muscle

Question 25

where does the cross bridge form?

Answer 25

between the myosin head and the g-actin site

Question 26

A-band

Answer 26

length on the myosin

Question 27

I-band | Will it shorten?

Answer 27

made of actin with a z disk in the middle | Will shorten in length

Question 28

terminal cisterna

Answer 28

terminal ends of the SR

Question 29

Triad?

Answer 29

two terminal cisterna and a t- tubule

Question 30

what is inside of the t-tubule?

Answer 30

ECF

Question 31

lag phase

Answer 31

starts when an Action potential is propagated and hits the calcium voltage gated channel in the presynaptic-- ends when calcium binds to troponin

Question 32

Moter unit

Answer 32

one motor neuron and all muscle fibers

Question 33

what makes up the CNS | Everything else?

Answer 33

Brain and Spinal cord | PNS

Question 34

Biopolar neuron

Answer 34

Retna and olfactory system | Sensory

Question 35

Multipolar

Answer 35

99% of all neurons Efferent motor

Question 36

Unipolar

Answer 36

sensory and afferent

Question 37

Neurons

Answer 37

send electrical signal and propigate action potentials

Question 38

Astrocyte

Answer 38

Cover surfaces of neurons and blood vessels that supply neurons Protect from heavy metals Regulate ECF levels Blood brain barrier

Question 39

What forms the blood brain barrier?

Answer 39

Astrocyte

Question 40

where is the astrocytes located

Answer 40

CNS

Question 41

Glial cells

Answer 41

anything that is not a nueron

Question 42

Microglia

Answer 42

gets rid of cellular junk

Question 43

Oligodendrocytes

Answer 43

makes myelin in the CNS

Question 44

Satellite cell

Answer 44

Same at a astrocyte, but located in the PNS

Question 45

What disease if no oligodendrocytes?

Answer 45

MS

Question 46

Dendrites are always ------

Answer 46

Post-synaptic

Question 47

temporal summation

Answer 47

one presynaptic with signals coming in close succession

Question 48

spatial summation

Answer 48

multipule presynaptic

Question 49

hypertrophy

Answer 49

muscle fibers get bigger