Exam (elaborations)
EXPH 386 EXAM 3 OE COMPLETE QUESTIONS AND ANSWERS (VERIFIED)
- Course
- Institution
EXPH 386 EXAM 3 OE COMPLETE QUESTIONS AND ANSWERS (VERIFIED)
[Show more]
Content preview
EXPH 386 EXAM 3 OE COMPLETE QUESTIONSAND ANSWERS (VERIFIED)
neuromuscular system
ANSWER = coordination and integration of the muscles and the nerves that supply them
cell body (soma)
ANSWER = action potential begins here, dictates the critical firing rate of the action potential
dendrites
ANSWER = neural branches that receive impulses and conduct them toward the cell body
axon
ANSWER = deliver action potentials to the motor endplate of the muscle. larger ______ = faster
conduction velocities
myelin sheath
,ANSWER = lipoprotein membrane that wraps around the axon, acts as an electrical insulator
schwann cells
ANSWER = create or deposit the myelin sheath
nodes of ranvier
ANSWER = interrupt the myelin sheath every 1-2 mm along the axon
salutatory conduction
ANSWER = allows the action potential to jump from node to node
slower
ANSWER = if no myelin were present, conduction velocities would be a lot ....
nerve terminal branches
ANSWER = multiple extensions of the axon that innervate individual muscle fibers
motor endplate / neuromuscular junction
ANSWER = interface between the end of the axon @ the terminal branch and the muscle fiber
,multinucleated cylindrical cells (fibers)
ANSWER = skeletal muscles of the body are composed of ___________ _________ ______ (_______)
which run parallel to each other. Force is directed along the long axis
fiber length
ANSWER = can vary from a few mm in small muscles (eye) to approx. 30 cm in large muscles (leg)
connective tissue layers associated with skeletal muscle
ANSWER = endomysium
perimysium
fasiculus
epimysium
tendons
periosteum
endomysium
ANSWER = wraps each muscle fiber and separates it from others
perimysium
ANSWER = bundle surrounding up to 150 fibers
, fasiculus
ANSWER = large bundle of fibers
epimysium
ANSWER = surrounds the entire muscle
tendons
ANSWER = extension of the epimysium at the ends of the muscle connecting to bone
periosteum
ANSWER = bones outermost covering; tendons connect the muscle to this
skeletal muscle structures
ANSWER = sarcolemma
basement membrane
sarcoplasm
sarcoplasmic reticulum
sarcolemma
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 Estudyr. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73314 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now