100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
PNB 2XB3 - Neuroanatomy & Neurophysiology Questions and Answers | Latest Update 2024/2025 £11.03   Add to cart

Exam (elaborations)

PNB 2XB3 - Neuroanatomy & Neurophysiology Questions and Answers | Latest Update 2024/2025

 6 views  0 purchase
  • Module
  • PNB 2XB3
  • Institution
  • PNB 2XB3

How many neurons are in the human brain? ~~> about 100 billion What percentage of the brain do we use? ~~> 100% What is the brain's power in watts? ~~> 20 W What is the size of a typical neuron? ~~> 10 um (cell body diameter) What is the most common neurotransmitter? ~~&gt...

[Show more]

Preview 4 out of 76  pages

  • September 20, 2024
  • 76
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • PNB 2XB3
  • PNB 2XB3
avatar-seller
1 | P a g e | © copyright 2024/2025 | Grade A+


PNB 2XB3 - Neuroanatomy &
Neurophysiology Questions and
Answers | Latest Update 2024/2025
How many neurons are in the human brain?

✓ ~~> about 100 billion



What percentage of the brain do we use?

✓ ~~> 100%



What is the brain's power in watts?

✓ ~~> 20 W



What is the size of a typical neuron?

✓ ~~> 10 um (cell body diameter)



What is the most common neurotransmitter?

✓ ~~> Glutamate



What is the voltage of a neuron at rest?

✓ ~~> -65mV



What is the name of the neuro-electrical impulse?




Master01 | September, 2024/2025 | Latest update

, 2 | P a g e | © copyright 2024/2025 | Grade A+

✓ ~~> Action potential



What ions are involved in neuro-electrical activity?

✓ ~~> Sodium (Na+), Potassium (K+) and Chloride (Cl-)



What is the CNS?

✓ ~~> Everything within bone, spinal cord, brainstem, thalamus, cortex

etc.



What is the PNS?

✓ ~~> All parts not within bone, peripheral nerves



3 types of glial cells

✓ ~~> Astrocyte (maintain ionic environment), Oligodendrocyte

(myelinates neurons), Microglia (scavenge cellular debris)



Rostral

✓ ~~> towards the nose, top of the neuraxis



Caudal

✓ ~~> towards the tail, end of the neuraxis



dorsal



Master01 | September, 2024/2025 | Latest update

, 3 | P a g e | © copyright 2024/2025 | Grade A+

✓ ~~> towards the back



ventral

✓ ~~> towards the front/stomach



anterior

✓ ~~> in the front



posterior

✓ ~~> behind



inferior

✓ ~~> below



superior

✓ ~~> above



midline

✓ ~~> line seperating right and left



ipsilateral

✓ ~~> same side




Master01 | September, 2024/2025 | Latest update

, 4 | P a g e | © copyright 2024/2025 | Grade A+

contralateral

✓ ~~> opposite side



decussate

✓ ~~> cross the midline



proximal

✓ ~~> close to the point of reference



distal

✓ ~~> far away from the point of reference



efferent

✓ ~~> projecting away from reference



afferent

✓ ~~> projecting towards reference



medial

✓ ~~> near midline



lateral




Master01 | September, 2024/2025 | Latest update

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller ExamArsenal. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £11.03. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

66579 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£11.03
  • (0)
  Add to cart