True or False. Action potential is generated and propagated along the sarcolemma and down the transverse tubules. Neurotransmitter is released and diffuses across the synaptic cleft and attaches to ACh receptors on the sarcolemma. Action potential triggers the release of Ca2 from the terminal cisternae of the sarcoplasmic reticulum.

Answers

Answer 1
Answer:

Answer:

  • Option- True

Explanation:

  • Action potential is generated and propagated along the sarcolemma and down the transverse tubules. Neurotransmitter is released and diffuses across the synaptic cleft and attaches to ACh receptors on the sarcolemma. Action potential triggers the release of Ca2 from the terminal cisternae of the sarcoplasmic reticulum.
Answer 2
Answer:

Answer:

False incorrect sequence.

Explanation:

1,Stimulus reaches the presynaptic  neuron membrane.

2.Calcium channels opens, and calcium ion diffuses into the neurone.

3.Vessicles of neurotransmitter acetycholine fused with the membrane of presynaptic neuron,   Neurotransmitter is released and diffuses across the synaptic cleft and attaches to ACh receptors on the sarcolemma.

4 The arrival of Action potential opens Na+ channels  in the sacolemma.

5, Na+ diffuses in causing depolarization  of the sacolemma,which  causes action potential to spreads along it length.

6. Action potential is generated and propagated along the sarcolemma and down the transverse tubules.

7. Action potential triggers the release of Ca2 from the terminal cisternae of the sarcoplasmic reticulum

8.Calciumion binds  to tropin, tropomyosin exposes the myosin-binding sites,cross-bridges is formed , and sacomere formed.


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1. Hot coffee is stirred with a spoon, the spoon gets hot due to _______________. 2. A chair is placed several feet from a fire in a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of_______________. 3. A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to _______________.

Answers

Answer:

1) Conduction.

Heat transfers to a spoon as the heat energy is passed from the coffee to the spoon through conduction.

2) Radiation

The heat on the glass surface gets radiated into the chair which causes the chair to warm up.

3) Convection

The globs are hot and less dense, which rises to the top whereas the cold globs are more dense which causes it to settle down.

Final answer:

1. Hot coffee warms the spoon through conduction,  

2. a chair warms through radiation from the fireplace,

3. decorative lamp globs rise through convection.

Explanation:

1. Hot coffee is stirred with a spoon, the spoon gets hot due to conduction. 

2. A chair is placed several feet from a fire in a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of radiation. 

3. A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to convection. 

Learn more about Heat Transfer here:

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Which of the following is a way your body fights a bacterial infection?Fever
Shivers
Sweats
Increased heart rate

Answers

Answer:

The Correct Answer is  

"Fever"

Explanation:

These are some benefits of Fever such as:  

  • Fever fights with Infections.
  • Fever slows down bacterial and viral growth.
  • Fever increases white blood cells which chase the bacteria.
  • Fever increases the acute phase response.
  • Fever increase speed recovery time.
  • Fever protect the body from the bacterial infection.

     

Increased heart rate

A 911 call is made to police. Upon arrival to a crime scene, investigators discover the body. Instar I and Instar II maggots are found on the body. What was the approximate PMI of the victim? (Assume normal temperatures and conditions)

Answers