BIO 201: Exam 3 Human Anatomy and Physiology I Study Guide with complete solutions |Latest 2024/2025
8 views 0 purchase
Course
BIO 201
Institution
BIO 201
3 steps of how the nervous system functions 1. Sense organs receive info
2. Brain and spinal cord process this info
3. Brain and spinal cord issue commands to muscles and gland cells
synaptic delay time from the arrival of a signal at the axon terminal of a presynaptic cell to the beginnin...
, myofibrils long protein bundles that occupy the main portion of the
i-i- i- i- i- i- i- i- i- i- i- i- i-
interior of a muscle fiber, composed of myofilaments
i- i- i- i- i- i- i-
myofilament protein microfilament responsible for muscle cell i-i- i- i- i- i- i- i- i-
contraction, composed of myosin or actin proteins i- i- i- i- i- i-
functions of each part of a muscle fiber i- i- i- i- i- i- i- i-i- i- Sarcolemma: plasma i- i-
membrane of a muscle fiber i- i- i- i-
Sarcoplasm: cytoplasm of a muscle fiber i- i- i- i- i-
Mitochondria: packed in spaces between myofibrils i- i- i- i- i-
Sarcoplasmic reticulum (SR): smooth ER that forms a network around i- i- i- i- i- i- i- i- i- i-
each myofibril-calcium reservoir
i- i-
Terminal cisternae: dilated end-sacs of SR which cross muscle fiber from
i- i- i- i- i- i- i- i- i- i- i-
one side to the other
i- i- i- i-
T tubules: tubular infoldings of the sarcolemma which penetrate through
i- i- i- i- i- i- i- i- i- i-
the cell and emerge on the other side
i- i- i- i- i- i- i-
Triad: a T tubule and 2 terminal cisterns
i- i- i- i- i- i- i-
Internal proteins: long protein bundles that occupy the main portion of
i- i- i- i- i- i- i- i- i- i- i-
the sarcoplasm
i-
Multiple nuclei: flattened nuclei pressed against the inside of the
i- i- i- i- i- i- i- i- i- i-
sarcolemma
Glycogen and Myoglobin functions Glycogen: stored in abundance
i- i- i- i-i- i- i- i- i- i-
to provide energy with heightened exercise
i- i- i- i- i-
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 AcademiaExpert. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.