Chapter 8 Endocrinology Flashcards Preview

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Flashcards in Chapter 8 Endocrinology Deck (37)
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1

4 Glial cells of CNS

Ependymal
Astrocytes
Microglia
Oligodendrocytes

2

2 Glial cells of PNS

Schawnn cell
Satellite cell

3

What cell helps in the blood-brain barrier?

astrocytes CNS

4

2 structures of CNS

brain
spinal cord

5

2 Structures of PNS

Cranial nerves - originate from the brain
Spinal nerves - originate from spinal cord

6

If you touch something and you fell its hot, the signal is efferent or afferent?

Afferent

7

If you are stressed out before an exam, what pathway is involved?

Sympathetic division of the ANS from the efferent neurons.
Your heart may beat faster, sweat...

8

I carry feedback information to somatic integration centers in the CNS from the PNS.

Somatic sensory division

9

Para or Sympa
Secretion of epinephrine and norepinephrine by the adrenal glands

Sympa

10

Para or Sympa
Respiratory system: decrease diameter of airways

Para

11

Para or Sympa
Eye: constriction of pupil

Para

12

Para or Sympa
Urinary system: increase urine production

Para

13

I am an excitable cell that conduct impulses (functional cells)

Neuron

14

In the neuron, I receive signal.

dendrite

15

In the neuron, I carry outgoing information.

axon

16

I am an insulin independent cell.

neuron in the brain.

17

True of false:
Neurons are permeable to Sodium and potassium ?

true,
they need transporters

18

In pharmacology, we use the help of a specific arrangement of fat molecules to carry the drug...

Liposome

19

How do you call an action potential that jumps between node of ranvier?

A saltatory conduction

20

How does an electrical synapse pass the signal?

directly from the cytoplasm of one cell to another through the pores of gap junction protein.
Information can flow in both directions through most gap jct, but in some current can flow in only one direction.

21

Where do electrical signal mainly occur?

In neurons of the CNS

They are also found in glial cells, in cardiac and smooth muscle, and in nonexcitable cells that use electrical signals such as the pancreatic beta cell.

22

Chemical synapses
How does in carry info?

With the help of neurocrine molecules
Synapses

23

Neuro.. and neuro...
act as paracrine signals and autocrine signals.

Neurotransmitters and neuromodulators
P.254

24

A neuron may terminate on one of three structure

muscle
gland
neuron

slide 70

25

I am a tiny bulge at the end of a terminal branch of a presynaptic neuron>s axon that contains vesicles housing neurotransmitters.

synaptic knob

26

Neurocrine receptors can be divided into 2 categories

Receptor-channels
GPCR

27

FAST OR SLOW
GPCR
Receptor-channels

GPCR : slow
Receptor-channels : fast

28

Can GPCR regulate the openning of a channel?

yes

29

All neurotransmitters bind to

Specific receptor types
except NO

30

3 arrangement of synapses
+draw them

Axodendritic
Axosomatic
Axoaxonic