within skeletal muscle cells, what extends from one z disc to the next and constitutes one contractile unit?

Answers

Answer 1

Answer:

What is a Sarcomere

Explanation:

A sarcomere is the basic structural and functional unit of skeletal muscle because it is the smallest portion of skeletal muscle capable of contracting. Each sarcomere extends from one Z disk to an adjacent Z disk.

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Related Questions

spermatogenesis and oogenesis are the only processes in the body where

Answers

Answer:

meiosis takes place

Explanation:

which weight-loss drug increases the release of norepinephrine?

Answers

Phentermine (adipex)

in the kidney, tubular reabsorption refers to the movement of fluid and solutes where?

Answers

Answer:

In the kidney, tubular reabsorption refers to the movement of fluid and solutes from the: tubular fluid into the blood.

Explanation:

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Miss Hawaii

how soon after laparoscopic gallbladder surgery can you go back to work

Answers

Answer:

6 to 8 weeks

Explanation:

Most people can go back to work or their normal routine in 1-2 weeks. But it may take 4-6 weeks for an open surgery.

what is the meaning of oral hygiene​

Answers

Oral hygiene is the aspect of dental care which covers keeping your teeth and gums as clean and healthy as possible and free of disease. Regular brushing and flossing daily to clean in between your teeth helps to ensure your smile will last a lifetime.

Explanation:

Also known as dental hygiene, oral hygiene consists of a routine of cleaning your teeth and gums. Proper oral care helps lead to healthy teeth, healthy gums, and fresh breath.

what structures keep blood from flowing from the ventricles to the atria

Answers

Answer: The tricuspid valve opens into your right ventricle, and the mitral valve opens into your left ventricle.  So the structures are the two valves (tricuspid and mitral valves).

Explanation: I hope this helps :) You've got this!

what happens in the uterus that differentiates the fetus into either male or female?

Answers

Answer:

hope this helps <3

Explanation:

The fetus appears to be sexually indifferent, looking neither like a male or a female. Over the next five weeks, the fetus begins producing hormones that cause its sex organs to grow into either male or female organs. This process is called sexual differentiation.

X- or Y-chromosome sperm have an equal chance of fertilizing an ovum. If sperm fuses an ovum, the zygote becomes masculine. When sperm-carrying X combines an ovum, a female zygote develops.

Which body system differentiates a male from a female?

The only human organ system that differs significantly between males and females is the reproductive system. Male and female embryonic structures that would eventually form the reproductive system begin similarly, but by birth, the reproductive systems have differentiated.

At fertilization, the embryo's chromosomal sex is determined. Humans need 6 weeks to show the earliest evidence of sex distinction, though.

An ovum has an equal chance of being fertilized by X- or Y-chromosome sperm. The zygote develops into a male when Y sperm combine with an ovum. A female zygote forms when an ovum and sperm-carrying X unite.

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why is it important that only low levels of oxygen are prescribed for patients with chronic obstructive pulmonary disease?

Answers

Answer:

getting more oxygen can help you breathe better and live longer.

Explanation:

personal experience.
Pain assessment is complex because pain is both a sensory and an __personal experience
A.)objective
B.) neurological
C.) emotional
D.) interpretive

Answers

Answer:

emotional

Explanation:

what physical properties could be used to separate iron filings from table salt

Answers

Answer:

you could use either magnets or dissolve the salt, really just depends if you wanna keep the salt which I would suggest not doing

which feature of the muscle tissue shown here is shared with skeletal muscle tissue?

Answers

Answer: striations.

Explanation:

what food can eat on the morning of colonoscopy prep day

Answers

Answer:

Water can get boring, so keep a variety of clear liquids on hand. On the day before your colonoscopy — when you're restricted to clear liquids — you can have popsicles, Jell-O, clear broth, coffee or tea (without milk or creamer), soft drinks, Italian ice, or Gatorade. But take nothing with red, blue, or purple dye.

Explanation: Hope this helps at least a little bit :)

what female reproductive system body part carries the egg cell to the uterus?

Answers

The ovaries produce egg cells that then travels through the Fallopian tubes into the endometrial cavity. The egg(s) plant itself(s) onto that wall waiting to be fertilized. (There is a process of fertilization, or another way to say it, sex, or how to make a baby)If that egg(s) get fertilized l, there is another process called pregnancy in the female body.

heart sound __________ is thought to result from the transition from expansion of the empty ventricles to their sudden filling with blood.

Answers

Answer:

Heart sound S3, if it occurs, is thought to result from the transition from expansion of the empty ventricles to their sudden filling with blood.

Explanation:

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Miss Hawaii

which of the following is a function of norepinephrine?

Answers

Answer:

Mobilize the brain and body for action

curare blocks action at acetylcholine synapses and causes paralysis. this drug is an example of an

Answers

Answer:Antagonist, which is a drug that inhibits the production of a chemical in the body. This is the opposite of an agonist drug.

which client statement indicates a good understanding of the nutritional modifications needed to manage hypertension?

Answers

Answer:

"Limiting my salt intake to 2 grams per day will improve my blood pressure."

Explanation:

Which client statement indicates a good understanding of the nutritional modifications needed to manage hypertension?

"I should eliminate caffeine from my diet to lower my blood pressure."

"A glass of red wine each day will lower my blood pressure."

"If I include less fat in my diet, I'll lower my blood pressure."

"Limiting my salt intake to 2 grams per day will improve my blood pressure."

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describe how age affects the respiratory system

Answers

Answer:

The effects of aging on the respiratory system are similar to those that occur in other organs: maximum function gradually declines. Age-related changes in the lungs include Decreases in peak airflow (how quickly someone can exhale) and exchange of carbon dioxide and oxygen Decreases in measures of lung function?

how to relieve sciatic nerve pain during pregnancy

Answers

Answer:

Use a warm compress on the spot where you feel the pain.

When you can, take a break off of your feet. Resting in a comfortable position can ease some leg and lower back pain.

Sleep on the side of your body that’s pain-free. For example, if you feel pain on your left side, lie down on your right side. That's still okay, even though the "best" sleeping position for pregnant women is typically said to be the left side.

For extra comfort at night, use a firm mattress with plenty of back support. You can also place a pregnancy pillow or a regular pillow between your legs to help keep the pelvis in better alignment and take some pressure off the sciatic nerve.

Try to avoid sitting for long stretches. Take frequent walking breaks and try alternating between your desk (or the couch) and a Pilates ball.  

Do some pelvic tilts with your Kegel exercises. They’ll help strengthen your core muscles and can help reduce inflammation.

Try swimming. It can take off some of the pressure, since the buoyancy of the water temporarily relieves the spine of the pregnancy weight.

Consider acupuncture, chiropractic adjustments or therapeutic prenatal massage. All can potentially offer relief, just be sure to work with a trained and licensed practitioner. Customized physical therapy regimens can be helpful too.  

Try to gain pregnancy weight at a steady pace. A major jump in pounds could put undue pressure on the sciatic nerve. Though the amount you should gain is specific to you, women who were a normal BMI before getting pregnant should generally aim to gain around 3 to 4 pounds in the first trimester, up to 14 more pounds in the second trimester and about 10 more pounds in the third trimester, for a total weight gain in pregnancy of 25 to 35 pounds.

If the pain is severe, talk to your doctor. She may recommend acetaminophen in a dosage that will take the edge off the pain but keep you and your baby safe.

Explanation:

what are the four organs of the integumentary system

Answers

Answer:

The integumentary system is an organ system consisting of the skin, hair, nails, and exocrine glands.

Explanation:

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an individual has homeowners insurance that covers up to $400,000, a personal auto insurance that covers up to $100,000 and an umbrella policy that covers up to $1,000,0000. an accident occurred in the person’s front yard in which a child was trying to catch a baseball and wanted to avoid the car and was hit in the face with the ball. the child was concussed and had a broken jaw from the ball and his medical expenses added up to $500,000. what is covered from insurance?

Answers

The $500,000 from medical expenses should be completely covered, $400,000 should be covered by the homeowners insurance and the remaining $100,000 should be covered by the umbrella policy.

Insurance covers expenses related to specific accidents or situations. In the case of homeowners insurance this covers:

Damages to your house or propertyMedical expenses if an accident occurs on your property

On the other hand, car insurance covers:

Damages to your carMedical expenses due to car accidents

Finally, the umbrella policy will cover the expenses if these exceed the limit of other insurances.

This means, in the case of an accident with a kid that was trying to avoid the car:

The homeowner's insurance should cover most of the expenses. This is $400,000 as this accident is related to an accident that occurred on the property, not a car accident.The umbrella policy should cover the remaining expenses or $100,000.

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what is the difference between albuterol inhaler and salbutamol inhaler

Answers

Answer:

Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease). It is also used to prevent asthma brought on by exercise.

Explanation:

signals from the _________ sense do not pass through the thalamus but go more directly to the limbic system

Answers

The signals from our sense of smell do not pass through the thalamus and instead go more directly to the limbic system.

The thalamus is a small structure located just above the brain stem with the function of relaying motor and sensory signals. The thalamus works in conjunction with the cerebral cortex, to whom it relays said signals, which explains its location in between the cerebral cortex and the midbrain. It is able to carry out these functions due to a network of nerves that connects it to its neighboring structures.

The limbic system is a group of neural structures that serve to:

Process and regulate emotionsForm and store memoriesControl sexual urgesParticipate in the process of learning  

The signals from our sense of smell do not pass through the thalamus. They instead travel down their corresponding sensory nerve, the first cranial nerve known as the olfactory nerve, and go more directly to the limbic system.

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The different types are muscle, nervous, connective, and epithelial.

Answers

Epithelial tissue provides a covering such as skin, the linings of the various passages inside the body.Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. The main functions of epithelia are protection from the environment, coverage, secretion and excretion, absorption, and filtration.

Nerve tissue is made up of nerve cells (neurons) and is used to carry "messages" to and from various parts of the body. Theyre found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. ... The cells in nervous tissue that generate and conduct impulses are called neurons or nerve cells. These cells have three principal parts: the dendrites, the cell body, and one axon.

Hope this helped you, have a good day bro cya)

how does the advancement of medical technology increase the number of medical ethical issues that arise?

Answers

Answer: here is the link to read ab it! its very helpful https://journalofethics.ama-assn.org/article/ethics-age-medical-device-technologies/2007-02

Explanation:

8. What type of doctor would you be if you completed a bachelor's degree, medical school, and a
medical residency. (1 point)

• phD
• MD
• EdD
• all of the above

Answers

Hello there!

The answer to your question is MD.

If you complete a bachelor's degree, medical school, and a medical residency, you wil be an MD.

Hope this helps!

~Just a joyful girl

a/an is performed to gain access to the brain or to relieve intracranial pressure.

Answers

Answer:

What is a craniotomy

Explanation:

A craniotomy is the surgical removal of part of the bone from the skull to expose the brain. Specialized tools are used to remove the section of bone called the bone flap. The bone flap is temporarily removed, then replaced after the brain surgery has been done.

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18. In the United States, which type of medicine is generally perceived as the best resource for medical help?
A. Western medicine
B. alternative medicine
C. Eastern medicine
D. mainstream medicine

Answers

Answer:

What is A. Western medicine

Explanation:

“Western Medicine”. Also known as “allopathic”, “conventional”, or “traditional” medicine, this is the most common form of health care in the United States and the western world. Western Medicine excels in the areas of testing and diagnostics.

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<3Miss Hawaii<3

Answer:

“Western Medicine”. Also known as “allopathic”, “conventional”, or “traditional” medicine, this is the most common form of health care in the United States and the western world. Western Medicine excels in the areas of testing and diagnostics.

Explanation:

What symptoms does Peter smith have and why is it important for you to recognize them

Answers

Answer:

Peter Smith have it

Explanation:

what is the relationship of the arms to the body’s core?

Answers

This ratio is approximately a one to one ratio, meaning that a person's arm span is about equal to their height. There are many more human body ratios; some are independent of age, and others change as we grow from a baby to an adult I hope this is correct
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