100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Anatomy and Physiology II 102: Neurology Review Questions (Intro to Nervous System) CA$25.19   Add to cart

Exam (elaborations)

Anatomy and Physiology II 102: Neurology Review Questions (Intro to Nervous System)

 14 views  0 purchase

Intro to Nervous System 1. The function of the nervous system is to integrate and control the other body systems. Explain how the nervous system does this. Nervous system processes information and sends out signals to the muscles and glands, which causes a response. 2. List the 2 parts of th...

[Show more]

Preview 4 out of 32  pages

  • January 30, 2021
  • 32
  • 2020/2021
  • Exam (elaborations)
  • Questions & answers
All documents for this subject (16)
avatar-seller
Welch1
Intro to Nervous System

1. The function of the nervous system is to integrate and control the other body systems.
Explain how the nervous system does this.
Nervous system processes information and sends out signals to the muscles and glands, which
causes a response.

2. List the 2 parts of the central nervous system.
Brain and the spinal cord

3. How are the parts of the central nervous system protected?
Brain is protected by the skull, and the spinal cord is protected by the vertebrae.

4. How do the central nervous system and the peripheral nervous system interact?
CNS sends signals/impulses to & receives signal/impulses from PNS.

5. What is included in the peripheral nervous system?
All other nerves - spinal nerves that project from either side of the spinal cord, and cranial
nerves that connects to the brain.

6. What are the 2 divisions of the peripheral nervous system?
PNS can be divided into Sensory/Afferent division, and Motor/Efferent division.

7. Describe the movement of nerve impulses in the peripheral nervous system.
PNS receives nerve impulses from the sensory organs via afferent division, and relays signals
from CNS to muscles and glands via efferent division.

8. What are the 2 divisions of the efferent division of the peripheral nervous system?
Efferent division is further broken down into:
- Somatic Nervous System: Voluntary
- Autonomic Nervous System (ANS): Involuntary

9. What is controlled by the somatic and autonomic nervous systems?
Somatic nervous system controls the skeletal muscles, skin and joints.
Autonomic Nervous system controls the glands and the smooth muscles of the internal organs.

10. What are the 2 divisions of the autonomic nervous system?
Autonomic Nervous System is broken down into:
- Sympathetic division (excitable)
- Parasympathetic division (relaxing)


11. What is the function of the sympathetic nervous system?

,Sympathetic Nervous System activates and prepares the body for strenuous muscle activity,
stress and emergency.
12. What is the function of the parasympathetic nervous system?
Parasympathetic Nervous System lowers activity, operates during normal situations, permits
digestion and conserve energy.




Neurons

13. Identify the parts of the neuron shown in the diagram below.

,a. Dendrites


b. Cell body


c. Nucleus


d. Axon


e. Myelin sheath


f. Schwann cells


g. Node of Ranvier


h. Axon Terminal




14. List 3 unusual characteristics of neurons.


Characteristics of neurons:


- They do not go through mitosis


- Can survive only a few minutes without oxygen

, - Can last an entire lifetime


- Requires an enormous amount of fuel


15. List the 3 parts of a neuron.


All neurons consists of a cell body, axon and dendrites.


16. Describe the structure and function of the neuron cell body.


Cell body contains nucleus and other organelles, but no centrioles.


One of cell body's main function is to manufacture neurotransmitters, which are the chemicals stored
in the secretory vesicles. Cell body also synthesizes all nerve products.


17. Describe the structure and function of the dendrite.


Dendrites are the receiving end of neurons, and are connected to the cell body. Dendrites are the
many extensions from the cell body, which receives information from other neurons, thus,
conducting nerve impulses towards the cell body.


18. Describe the axon, including the number in each neuron, function, structure and organelles.


Axons conducts nerve impulses away from the cell body, to its own axon terminals, where it's
transmitted to another neuron's dendrites. Axons can vary in length, from very short to as long as 3
feet (from the spine to the big toe). Axons are composed of cells like the cell body, but lack rough
endoplasmic reticulum (ER), depending on the cell body for necessary parts.


19. Describe the composition and function of Schwann cells.


Schwann cells exits only in the PNS, and they are mainly composed of a fatty white layer called the
myelin sheath, which are rolled around the axon of peripheral nerve. This myelin sheath protects and
insulates the axon, and helps increase the speed of nerve impulses along the axon.


20. Describe the location and function of the Nodes of Ranvier.

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 Welch1. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$25.19. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67474 documents were sold in the last 30 days

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

Start selling
CA$25.19
  • (0)
  Add to cart