1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lilit [14]
3 years ago
11

Place these events in the correct order of occurrence in the muscle contraction: End plate potential triggers an action potentia

l Transverse tubules convey action potentials into the interior of the muscle fiber Acetylcholine binds to receptors on the motor end plate Calcium is released from the sarcoplasmic reticulum Ligand-gated channels open leading to depolarization Calcium ions bind to troponin, which then moves tropomyosin
Biology
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0

Answer:

1. Acetylcholine binds to receptors on the motor end plate

2. Ligand-gated channels open leading to depolarization

3. End plate potential triggers an action potential  

4. Transverse tubules convey action potentials into the interior of the muscle fiber

5. Calcium is released from the sarcoplasmic reticulum

6. Calcium ions bind to troponin, which then moves tropomyosin

Explanation:

Acetylcholine (ACh) is a signaling molecule (neurotransmitter) that binds to receptors on muscle cells. This binding triggers the opening of ligand-gated sodium channels, thereby ions enter into muscle cells, which causes the depolarization of the sarcolemma and thus promotes the release of Ca2+ ions from the sarcoplasmic reticulum. The myoneural junction, also known as the motor endplate, is the site of synaptic contact between a motor axon and a skeletal muscle fiber. The endplate potential is the voltage that produces the depolarization of muscle fibers when ACh molecules bind to their receptors in the cell membrane. This depolarization spreads in the sarcolemma through transverse tubules (T tubules​) and thus generates an action potential. Finally, this action potential induces the release of Ca2+ in the sarcoplasmic reticulum, which activates troponin protein and induces muscle contraction.

You might be interested in
The ocean absorbs carbon dioxide directly from the atmosphere. How does CO2 absorption affect the ocean?
Rudiy27
Ocean plants absorb co2 just like trees do. Any co2 that’s not fixed will mess up the chemistry of the waters
4 0
3 years ago
Which of the following would not be considered a nontraditional sport
GaryK [48]

Answer:

theres no options..?

Explanation:

. . . . . . .

7 0
3 years ago
Which of the following best describes how the size and shape of a cell affect its ability to obtain nutrients from its surroundi
fredd [130]

Answer:

A smaller cell has fewer organelles dependent upon nutrient uptake and will acquire them more quickly.

Explanation:

the larger the cell the more distance matter must travel within the cell. if the cell was larger there would be a waste of space in the cell and it would take longer for proteins and enzymes to travel about the cell.

5 0
3 years ago
2. The Bionic Pancreas Until recently, diabetics could rely only on regular blood sugar checks, medications, and low-carbohydrat
ryzh [129]

Answer:

to maintain homeostasis

Explanation:

The bionic pancreas is a technology created to reduce and adjust blood sugar levels in patients with diabetes. This external device was developed by Ed Damiano's lab at Boston University. This management system is well known to maintain homeostasis by managing blood sugar levels: the bionic pancreas contains two pumps, one with insulin and the second one with glucagon for controlling the sugar levels when they change in the blood.

7 0
3 years ago
PLz help me with this question!!!!!
Dovator [93]

Answer:

asexual reproduction

Explanation:

it starts off with a single nucleus and ends up with 2, there is no obvious chromosomes or spindle fibres to suggest meiosis or mitosis

7 0
3 years ago
Other questions:
  • WILL GIVE BRAINLIEST!!!!!!!!!!
    10·2 answers
  • A woman who isn't colorblind but has an allele for color blindness reproduces with a man who has normal vision. What is the chan
    5·1 answer
  • How do fats, oils, and waxes react with water inside the body?
    9·1 answer
  • People who study the effects of human activities on Earth’s land, air, water, and living things are a. astronomers. b. environme
    6·2 answers
  • Which nucleotide is in RNA but not in DNA?
    7·2 answers
  • How many rotations dose the moon take every time it orbits around earth
    8·1 answer
  • 50 point question here answer it please
    10·2 answers
  • The business cycle illustrates the long-run fluctuations of ___.
    12·1 answer
  • Ing to nis state? Ex: physical geography, ethnic separatismc cleansing
    7·1 answer
  • (Score for Question 3: ___ of 2 points) 3. Sketch some of your observations from the lab. Answer: (Score for Question 4: ___ of
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!