Exam (elaborations)
NR 603 Week 1 Questions with 100% Correct Answers | Latest Update 2024 | Rated A+
- Course
- Institution
NR 603 Week 1 Questions with 100% Correct Answers | Latest Update 2024 | Rated A+
[Show more]
Content preview
NR 603 Week 1 Questions with 100%Correct Answers | Latest Update 2024 |
Rated A+
differentiate between the lateral and medial motor systems - ✔✔lateral =
distal //fine motor
- lateral corticospinal tract
- rubrospinal tract
medial = proximal //gross motor
- anterior corticospinal tract
- reticulospinal tract
- tectospinal tract
- vestibulospinal tract
,discuss the lateral corticospinal tract in terms of axons - ✔✔90% axons cross
in pyramidal decussation (medulla)
discuss the anterior //medial corticospinal tract in terms of axons - ✔✔8%
axons cross in spinal cord + 2% axons from lateral corticospinal tract that do
NOT cross in pyramidal decussation (medulla)
innervates everything, but ONLY tract that innervates fine motor movements e.g.
hands
discuss the reticulospinal tract - ✔✔medial motor system
brainstem = automatic responses e.g. postural control
discuss the tectospinal tract - ✔✔medial motor system
, turning eyes/head to orient peripheral
discuss the vestibulospinal tract - ✔✔medial motor system
balance/postural control reactions
define somatotopy - ✔✔point-for-point correspondence of an area of the body
to a specific point on the CNS e.g. motor/sensory cortex homunculus
where does the rubrospinal tract originate? - ✔✔red nucleus in midbrain
where does the rubrospinal tract decussate? - ✔✔ventral tegmental in midbrain
where does the tectospinal tract originate? - ✔✔superior colliculus in midbrain
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 Examsplug. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.24. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
71498 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now