100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
BMSC 207 Muscles Final Test (Questions & Answers) Rated 100% Correct!! $8.39   Add to cart

Exam (elaborations)

BMSC 207 Muscles Final Test (Questions & Answers) Rated 100% Correct!!

 5 views  0 purchase
  • Course
  • BMSC 207 Muscles
  • Institution
  • BMSC 207 Muscles

Why are the ends of the A band the darkest region of the sarcomere? - ️️the thick and thin filaments overlap Skeletal muscle moves a bone at a joint, such as flexing the forearm at the elbow. How is the opposite action produced (for example, extension at the elbow)? - ️️an Agonistic mus...

[Show more]

Preview 2 out of 7  pages

  • October 25, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BMSC 207 Muscles
  • BMSC 207 Muscles
avatar-seller
PatrickKaylian
BMSC 207 Muscles Final
Why are the ends of the A band the darkest region of the sarcomere? - ✔️✔️the thick
and thin filaments overlap

Skeletal muscle moves a bone at a joint, such as flexing the forearm at the elbow. How
is the opposite action produced (for example, extension at the elbow)? - ✔️✔️an
Agonistic muscle produces the opposite movement

Satellite cells lie just outside the muscle ____________________ - ✔️✔️fiber
membrane

What do satellite cells do when they become active? - ✔️✔️differentiate into muscle
when needed for muscle growth and repair

what type of muscle is unstriated? - ✔️✔️smooth muscle

The entire muscle is enclosed in a _____________________ sheath - ✔️✔️connective
tissue

Name the components of a whole muscle in order from greatest to smallest -
✔️✔️Whole muscle - Muscle fascicles - Muscle fibers - Myofibrils - Actin - Thin
filaments


the cell membrane of a muscle is called the - ✔️✔️sarcolemma

the enlarged end regions of the sarcoplasmic reticulum are called the - ✔️✔️terminal
cisternae

The cytosol between the myofibrils contain many ___________ and _________ -
✔️✔️glycogen granules, mitochondria

What type of muscle makes up 40% of bodyweight? - ✔️✔️Skeletal Muscle


________ forms thick filaments and ________ forms the thin filaments - ✔️✔️myosin,
actin

Myosin acts as an ATPase - explain what this means. - ✔️✔️the enzyme hydrolyzes
ATP into ADP and Pi creating the energy needed for movement

The _________ produces much of the ATP for muscle contraction - ✔️✔️mitochondria

, As contraction takes place, actin and myosin ______________ length - ✔️✔️do not
change


In a neuromuscular junction, synaptic vesicles in the motor neuron contain what
neurotransmitter? - ✔️✔️acetylecholine

which ion channels open when an action potential arrives at the axon terminal? -
✔️✔️voltage gated calcium channels

what type of transport is used to release ACh into the synaptic cleft? - ✔️✔️exocytosis

What type of channels open when ACh binds to receptors in the synaptic cleft? -
✔️✔️Chemically gated sodium channels

How is ACh removed from the synaptic cleft? - ✔️✔️acetylcholinesterase

Calcium ions are stored here, they from the ___________ go into the cytosol during an
action potential - ✔️✔️terminal cisternae

What does myasthenia gravis cause? - ✔️✔️weakness and rapid fatigue of skeletal
muscles

how do action potentials propagate down to the interior of the muscle fibers? -
✔️✔️along the t-tubule network

The DHP receptor and ________ receptor are mechanically linked - ✔️✔️ryanodine

how is the conformation of the DHP receptor changed? - ✔️✔️an action potential
comes down the t-tubule

Besides mechanically, how else can Ryanodine receptors be activated? - ✔️✔️Calcium
induced calcium release

Where do calcium ions bind to after being released from the RyR? - ✔️✔️troponin

The movement of tropomyosin after the binding of calcium reveals what? - ✔️✔️myosin
binding sites on the actin

The myosin _______ binds to the active binding sites on actin - ✔️✔️head

ATP ________ results in the myosin head pivoting around into the cocked state -
✔️✔️hydrolysis

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 PatrickKaylian. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $8.39. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67096 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
$8.39
  • (0)
  Add to cart