Ivy Tech Aphy 201: Chapter 12 - Muscles
Muscle cells are surrounded by a plasma membrane called the ___________. It is
enveloped by a thin connective tissue layer.
A. Endomysium
B. Sarcolemma
C. Perimysium - ANS-B. Sarcolemma
The thin connective tissue layer that envelopes the sarcolemma is called the
_________________.
A. Epimysium
B. Perimysium
C. Endomysium - ANS-C. Endomysium
Skeletal muscles are attached to bone on each end by tough connective tissue
________.
A. Joints
B. Cells
C. Tendons - ANS-C. Tendons
True or False:
The prime mover of any skeletal movement is called the antagonistic muscle. -
ANS-False. It is the agonist muscle.
Flexors and extensors that act on the same joint to produce opposite actions are called
_______________ muscles.
A. Agonistic
B. Antagonistic
C. Pessimistic
D. None of these are correct. - ANS-B. Antagonistic
Which of the following is NOT a function of skeletal muscle?
A. Produce movement
, B. Maintain posture and body position
C. Stabilize joints
D. Generate heat
E. Affect metabolism
F. Modify chemical structure - ANS-F. Modify chemical structure.
What are the three types of muscle? - ANS-Skeletal, cardiac, and smooth
What muscle is considered striated and involuntary? - ANS-Cardiac muscle
(Remember, you can't make your heart beat)
What muscle is considered striated and voluntary? - ANS-Skeletal muscle
What muscle is considered non-striated and involuntary? - ANS-Smooth muscle
What is the correct organization of muscle?
A. Muscle, fascicles, muscle fibers, myofibrils, thick and thin filaments
B. Myofibrils, muscle fibers, thick and thin filaments, fascicles, muscles
C. Muscle, muscle fibers, fascicles, myofibrils, thick and thin filaments - ANS-A. Muscle,
fascicles, muscle fibers, myofibrils, thick and thin filaments
Skeletal muscle contain _____ mitochondria
A. No
B. Three
C. Many
D. One - ANS-Many
In the structure of skeletal muscle, A bands are _____.
A. Dark
B. Light
C. None of the above. - ANS-A. Dark
In the structure of skeletal muscle, I bands are _____.
A. Light
B. Dark
C. None of the above. - ANS-A. Light
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 lydiaomutho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.