What substance couples electrical excitation to muscle contraction?

Answers

Answer 1

Answer:

Answer:

Calcium ions.

Explanation:

Calcium ions is stored in the sarcoplasmic reticulum of the muscle fibers. Calcium plays an important role in the muscle contraction.

Smooth muscles use calcium for the phosphorylation of myosin that couples the electrical excitation and initiates muscle contraction. The process of cross bridge cycle occurs in the muscle contraction.

Thus, the answer is calcium.

Related Questions

Describe the process of emulsification. Name the substance which performs this job. Name the organ that synthesizes this substance. Name the organ which stores and concentrates this substance. How does this substance get into the duodenum of the small intestine? g
Which is not one of the common causes of infertility? A. Abnormally large eggs (hyperovaminemia) B. Declining hormone levels that occur with aging C. Low sperm count D. Irregular ovulation
Division of the term psychosis into its component parts produces which combination?
A 52-year-old woman reports a skiing fall. She walks into the aid station and complains of double vision. She reports that she fell and landed on hard packed snow on her face. You suspect she has a: A) retinal detachment. B) blowout fracture. C) impaled object in her eye. D) significant head injury.
The patients states that she had a heart attack 2 years ago What medical term would you document in her PMHx? HINT: expand the abbreviation !

A 19-year-old college sophomore comes to the emergency room because he has noticed a sudden onset of severe shortness of breath. It occurred while he was playing basketball. He is normally healthy and is a nonsmoker. He is an alert, thin, tall male in moderate discomfort secondary to respiratory distress. On physical examination of the lungs, the following is noted: hyperresonant to percussion over the left lung field; decreased to absent breath sounds on the left side and no adventitious sounds; decreased tactile fremitus on the left side. Based on the history and physical examination findings, what is the most likely diagnosis?

Answers

Answer:

Collapsed Lung (Pneumothorax)

Explanation:

"A pneumothorax is a collection of free air in the chest outside the lung that causes the lung to collapse.

[...]In some instances, the lung continues to leak air into the chest cavity and results in compression of the chest structures, including vessels that return blood to the heart. This is referred to as a tension pneumothorax and can be fatal if not treated immediately.

Examination of the chest with a stethoscope reveals decreased or absent breath sounds over the affected lung. The diagnosis is confirmed by chest X-ray."

Reference: George Schiffman. “Pneumothorax (Collapsed Lung): Symptoms, Causes & Treatment.” RxList, 2019

Which of the following is NOT a functional classification for joints? Which of the following is NOT a functional classification for joints? synarthrosis amphiarthrosis diarthrosis cartilaginous

Answers

Answer:

Cartilaginous

Which organ performs the given function? The roof of the mouth separates the oral cavity from the nasal cavity. The is flexible and closes off the nasal cavity when you swallow.

Answers

Soft palate

The soft palate is composed of muscle and connective tissue, which give it both mobility and support. This palate is very flexible. When elevated for swallowing and sucking, it completely blocks and separates the nasal cavity and nasal portion of the pharynx from the mouth and the oral part of the pharynx.

Final answer:

The palate separates the oral cavity from the nasal cavity, and comprises of two parts: the hard palate at the front and the soft palate at the back. The soft palate is flexible and closes off the nasal passage when we swallow.

Explanation:

The organ that separates the oral cavity from the nasal cavity is the palate. The palate comprises of two sections: the hard palate at the front, made of bone and the flexible soft palate at the back that closes off the nasal cavity when we swallow.

Essentially, the palate plays a significant role in our ability to eat and speak correctly. When we swallow, the soft part of the palate seals off the nasal passages, ensuring food and liquid pass from the oral cavity to the esophagus avoiding the nasal cavity.

Learn more about Palate here:

brainly.com/question/32080364

#SPJ6

Medical errors play a big role in health care. Understanding a health care professional's role in the communication of medical errors is critical to an organization. After reading Chapter 8 in your textbook, explain in detail your role in reporting a medical error. What aspects do you need to consider? Who/what/where/when and how is this error reported?

Answers

Answer:

Explanation:

The error was respirator

Describe four types of
animal cell and plant cell

Answers

~!+~!+~!+!+~!+~!+~!+~+!+~+!+~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+~!+~+!+~+!~+!+~+!~+!~+!~+!~+!~+!~+!~+!~+!~+~!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~

Hello! If this answer doesn’t fulfill all of your questions, or it doesn’t have the exact information you are looking for, I apologize. But, I will try to help you to my best ability! <3

Answer:

Plants have three tissue types: ground, dermal, and vascular. Animals have four: epithelial, connective, muscle, and bone.

Again, hope this helps! Good luck! :D

~!+~!+~!+!+~!+~!+~!+~+!+~+!+~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+~!+~+!+~+!~+!+~+!~+!~+!~+!~+!~+!~+!~+!~+!~+~!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~+!~

A patients pulse oximetry reading is 92%. What is the bestmethod of oxygen administration for this patient?

Answers

Answer:

A low flow oxygen supply

Explanation:

92% is the threshold for hypoxia, meaning that below 92% a person may need Oxygen supply. Depending of each patient's level of saturation, there are different types of devices and pressures, the lower the Oxygen concentration the more the pressure needed, for 92% a patient may require a low pressure system, such as nasal cannula for supply from 24 to 40% of Oxygen concentration. The second option is a face mask, which provides between 28% and 50%.

Other Questions

What is Inflammation and what is the underlying mechanism?

If you enjoy wasting time, is that time really wasted?If someone with multiple personalities threatens to kill himself, is it considered a hostage situation?If you try to fail and succeed, then which have you done?CHOSE WILDLY BUT RIGHT ANSWER

______________ (hormone) stimulates secretion of estrogen from the ovaries during the first half of the ovarian cycle.

A new experimental treatment for major depressive disorder that does not induce seizures, called _____, involves stimulation of certain regions of the brain with magnetic impulses of various frequencies.