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
madam [21]
3 years ago
8

Put these events in the correct chronological sequence.

Medicine
1 answer:
In-s [12.5K]3 years ago
8 0

Answer:

The correct answer will be:

1.  Acetylcholine binds to receptors on the motor end plate

2. Chemically-regulated ion channels open, causing depolarization

3  End plate potentials trigger action potential(s).

4. Transverse tubules convey potentials into the interior of the cell

5. Ca++ is released from the sarcoplasmic reticulum

6. Ca++ binds to troponin, pulling on tropomyosin

7. Binding sites on actin are uncovered, allowing myosin to bind and carry out power strokes

8. Force increases.

9. Ca++ is pumped (re-sequestered) into the sarcoplasmic reticulum

10.  Force decreases.

Explanation:

The muscle contraction is a highly controlled mechanism which begins at the neuromuscular junction with the release of the acetylcholine neurotransmitter. This neurotransmitter causes the depolarization of the membrane by binding to the receptors of the motor end plate which generates an action potential. This action potential is transmitted via T-tubules from sarcolemma to the sarcoplasmic reticulum.  

The sarcoplasmic reticulum releases calcium ions which binds to the troponin protein. This troponin removes the protein tropomyosin from the actin causing the rotation of the tropomyosin exposing the binding sites for myosin. The myosin binds to the actin using energy from the ATP which pulls the actin causing contraction. Another ATP binds the myosin head which weakens the bond between myosin and actin which releases the myosin which decreases the force between them decreases and the muscles relax.

You might be interested in
Insurance that will pay for injury to another driver
Harlamova29_29 [7]

Answer:

if i remember correctly from my drivers ed class its liability insurance

Explanation:

3 0
3 years ago
Read 2 more answers
All of the following are components of the negative feedback systems that control homeostasis EXCEPT
Lena [83]

The answer is c I think

5 0
3 years ago
Describe how carbohydrates are chemically digested in the small intestine. Include a discussion of brush border enzymes.
Mumz [18]

Explanation:

Digestion of carbohydrates in the small intestine -

Carbohydrates brake - down from dissachride into the monosaccharide in the small intestine .

The enzyme carbohydratase , carries out these steps where the disacchride are broken into the simpler carbohydrates , that is , the glucose .

This enzyme which is present in the microvilli of the small intestine help in the absorption of glucose have brush border appearance, which increases the surface area of absorption .

8 0
3 years ago
Some viruses can undergo lysis or lysogeny within the same host. Under what conditions might the virus favor lysis instead of ly
bezimeni [28]
<h3>Under this conditions virus might favor lysis instead of lysogeny:</h3>

- according to the state of the host cell (can switch)

- in a healthy host, the virus can multiply and create new virions.

- unhealthy host: Lack of energy permits the lysogen to incorporate DNA into the host cell, where it can wait for the cell's health to improve.

<h3>What is lysis?</h3>

A common result of viral infection is cell lysis. Cellular membranes are damaged, which causes cell death and the release of cytoplasmic substances into the extracellular environment.

<h3>What is lysogeny?</h3>

One of two viral reproduction cycles is lysogeny, sometimes known as the lysogenic cycle. The bacteriophage nucleic acid is integrated into the host bacterium's genome during lysogeny, or a circular replicon forms in the bacterial cytoplasm.

Learn more about virus here:

brainly.com/question/2495833

#SPJ4

8 0
1 year ago
One in _____middle school students has used cigarettes in the past 30 days and one in __________ high school students has used c
zhuklara [117]

Answer:

One in 14 middle school students has used cigarettes in the past 30 days and one in 4 high school students has used cigarettes in the past 30 days.

Explanation:

Source: CDC 2018

4 0
2 years ago
Read 2 more answers
Other questions:
  • What organs would be visible if you took a mid-sagittal or medial MRI of the body?
    5·1 answer
  • While playing on her swing set, 10-year-old Sally falls and breaks her right leg. At the emergency room, the doctor tells her pa
    9·1 answer
  • Molina, a 67-year-old, Hispanic widow recently from San Salvador, needed to sign an informed consent for a mastectomy. She spoke
    10·1 answer
  • a mother brings her 18 month old daughter to your office for a routine physical examination. the child has no immunizations. her
    11·1 answer
  • She nervously peered over the window. She understood in her mind that the view was supposed to be beautiful, but all she felt wa
    9·2 answers
  • What is an analogy for cerebellum
    5·1 answer
  • A patient has been experiencing severe, persistent allergy symptoms that are reduced when she takes an antihistamine. Before the
    11·1 answer
  • Yesterday your nephew was severely injured in a motorcycle accident. The provider believes there is a fracture in the thoracic s
    14·1 answer
  • a nurse is providing preoperative teaching for a client who is scheduled for creation of a sigmoid colostomy. which of the follo
    12·1 answer
  • 6. If a patient is diagnosed with secondary hypertension, this means that the:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!