Exam (elaborations)
HUMAN ANATOMY- SLCC EXAM REVIEW QUESTIONS AND ANSWERS
- Course
- Institution
HUMAN ANATOMY- SLCC EXAM REVIEW QUESTIONS AND ANSWERS
[Show more]
Content preview
HUMAN ANATOMY- SLCC EXAMREVIEW QUESTIONS AND ANSWERS
Transfer tubules (t-tubules) - Answer-tube that extends into sarcoplasm that enable
impulses to travel which causes the smooth ER to release; allows electrical signal to
pass to inner parts of cells calcium=muscle contraction
What are cross bridges? What is their function? - Answer-formed by myosin heads that
bind actin and myosin;
In the sarcomere what changes length during a muscle contraction? - Answer-A band
remains the same, the H and I band both shorten and the Z lines come closer together
What is the function of acetylcholine? Where is it found? - Answer-activates muscle
contractions and is found in the preganglionic sympathetic and parasympathetic
neurons of the autonomic nervous system.
Describe a cross-bridge cycle? - Answer-formed when myosin heads from thick
myofilaments bind with actin from thin myofilaments
Functional Unit of contraction is: - Answer-the sarcomere
the formation of a cross bridge is formed when - Answer-calcium ions that are released
from the smooth ER and bind to troponin
what activates the myosin? - Answer-ATP
Isometric contraction: - Answer-static muscle movement without a noticeable change in
angle of the joint; length is constant
Isotonic contraction: - Answer-Load(weight) does not change, two types are concentric
and eccentric
Excitability: - Answer-respond to stimuli, muscles can be stretched to their normal
resting length and beyond to a limited degree.
Contractility: - Answer-Stimulation to muscles that causes tension
Elasticity: - Answer-ability to return to its original length after being stretched once
tension is released
Extensibility: - Answer-the ability of a muscle to extend to a predetermined endpoint
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 biggdreamer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73243 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
