100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Biol 1303 Chapter 13 Notes $8.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. University Of Houston - Downtown
  4.  
  5. BIOL 1303

Class notes

Biol 1303 Chapter 13 Notes

 0 purchase

This is a comprehensive and detailed note on Chapter 13; the nervous system III;spinal cord and spinal nerves for Biol 1303. *Essential Study Material!!

Preview 2 out of 6  pages

Document information

  • September 20, 2024
  • 6
  • 2017/2018
  • Class notes
  • Prof. chad
  • All classes

Subjects

Written for

All documents for this subject (10)

Seller

avatar-seller
anyiamgeorge19

Reviews received

Content preview

BIOL 1303 Lecture Outline
Nervous System III- Spinal Cord and Spinal Nerves
Chapter 13
I. Functions

A. Spinal nerves: carry sensory information to and motor information from the CNS

B. Spinal cord: help maintain homeostasis with quick reflexive responses to stimuli and carry
sensory and motor information to and from the brain

II. Protection of Spinal Cord

A. Veterbral column

1. bone of vertebrae provide physical protection

2. spinal cord lies within the vertebral canal (vertebral foramina)

B. Meninges: three layered connective tissue covering of the brain and spinal cord

1. epidural space

a. between the vertebrae and dura mater

b. cushion of fat and CT

2. dura mater

a. most superficial

b. dense irregular CT

3. subdural space

a. between dura mater and arachnoid mater

b. filled with interstitial fluid

4. arachnoid mater

a. collagen and elastic fibers

5. subarachnoid space

a. between arachnoid mater and pia mater




-1-

, b. filled with cerebrospinal fluid

6. pia mater

a. thin connective tissue

b. highly vascular

c. adheres to surface of brain and spinal cord

d. denticulate ligaments

1. thick extensions of pia mater that fuse with arachnoid and dura mater

2. protect against shock and sudden displacement (hold SC to dura mater)

7. HINT: PAD= Pia, Arachnoid, Dura

C. Cerebrospinal fluid (CSF)

1. provides cushioning of CNS

2. in subarachnoid space, ventricles of brain, and central canal of SC

3. ependymal cells produce and circulate CSF

III. Structure of Spinal Cord

A. Location

1. inferior to brain

2. connect to medulla oblongata

3. within the vertebral canal

B. Longitudinal Section

1. cervical enlargement (C4-T1): nerves of upper limbs arise here

2. lumbar enlargement (T9-T12): nerves of lower limbs arise here

3. conus medullaris: between L1 and L2, termination of SC

4. cauda equine: “horse tail” nerve axons that arise from the inferior SC and continue
down vertebral canal before exiting



-2-

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 or Stuvia-credit 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 anyiamgeorge19. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $8.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

66184 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$8.99
  • (0)
Add to cart
Added