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
dlinn [17]
3 years ago
5

Smooth ER of a muscle cell:

Medicine
1 answer:
Maksim231197 [3]3 years ago
5 0

Answer: B. Sarcoplasmic reticulum

Explanation: The sarcoplasmic reticulum is the name given to the organelle in the muscle cell, in charge of the storage and regulation of the intracellular calcium levels. It is the smooth endoplasmic reticulum in muscle cells, it means that it does not have ribosomes in its surface.

Option A. Incorrect. A SARCOMERE is the functional and anatomic unit of the striated muscle (skeletal muscle and heart muscle). This word comes from the greek: <em>sarkos (meat), meros (part). </em>That is reason you could find other structures of the muscle cell with this root (SARCO...).

Option C. Incorrect. "Arcolemma" this word does not exist. But if it refers to SARCOLEMMA, this word means: <em>sarko (meat), lema (cortex) </em>in greek<em>. </em>It is the plasma membrane of the muscle cells.

Option D. Incorrect. The SARCOPLASM, comes from the greek: <em>sarko (meat), plasm (matter). </em>This structure is the citoplasm of the muscle cells.

In conclusion, the word SARCOPLASMIC RETICULUM, refers to a <em>structure of the muscle cell, </em>that in this case, is the RETICULUM or the SMOOTH ER.

You might be interested in
What is the percentage of white blood cells?
Elena L [17]

Answer:

There is more than one kind of white blood cell

Explanation:

there is more than one type of white blood cells, for example Neutrophils normal percentage 40 to 60%, Lymphocytes 20 to 40%, and Monocytes 2 to 8%

3 0
2 years ago
Read 2 more answers
#1 True or False: Body Growth and Brain Development in Infancy and Toddlerhood (pp. 162–174) Directions: Read each of the follow
rodikova [14]

Answer:

Since there are so many true and false questions, the answers and their short explanation, are as follows:

1. False. Children tend to gain weight from birth till they reach the 2-year line and from then on, into middle childhood, they tend to trim down.

2. False. The reverse is true. When skeletal age is used to measure body development, epsecially bone growth, it is African American children that have a slight advantage over their Caucasian counterparts.

3. True. Between childhood and adolescence, the body prunes about 40% of the synapses that have been formed by the brain, as they will not be necessary later in development. This helps to prepare the brain for what it will become later in life.

4. False. Young children, and especially infants, need to move, and are anxious in small spaces. both of these diagnostic procedures require the child to be static, and that is not possible. This is why EEG is a more common procedure to be used; it allows children to be sitting with their parents and to move.

5. True. The cerebral cortex continues growing from childhood into adolescence, and it develops more rapidly than any other region of the brain as it is the one that is most stimulated during those years.

6. False. The cerebral cortex has two hemispheres but each one specializes on certain activities. This does not mean that both do not colaborate in all tasks, but each has specialized tasks to perform.

7. True. Plasticity is a characteristic of the young brain. However, even during childhood, if injury occurs, this does not mean there will not be consequences. It just means that the brain is able to cope with the deficiency and establish mechanisms of compensation that the adult brain cannot do.

8. True. The period between 6 months and 2 years is especially active in development of social, physical and emotional skills. So understimulation and the lack of proper resources and support systems does cause problems in development.

9. False. This is basically a myth. Overstimulation of the child´s brain will not ensure they are more proficient or better, and much less that they become superbabies.

10. True. The more social contact a baby has, paired with genetics of course, the more stimulated the brain becomes and the more development is benefited. And the more developed a baby´s brain is, the further interaction he/she will have with his/her environment, to increase development.

8 0
3 years ago
What are the symptoms of undifferentiated connective tissue disease?
Shalnov [3]

Symptoms of undifferentiated connective tissue disease:

- Low fever

- Hair loss

- Rashes

- Sores or swelling inside of your mouth

- Dry mouth

If you experience any of these symptoms, go to the hospital as soon as possible.

6 0
2 years ago
The pulse site located on the thumb side of the wrist is called:
Anon25 [30]

Answer:

d. Radial

Explanation:

Pulse which can be felt in the areas of body where the artery present there is close to surface of the skin and to bone. Common pulse sites include carotid, temporal, brachial, radial, etc.

<u>The radial pulse is the pulse which is located at the thumb site of wrist in the body. It is located approximately 1 inch above base of thumb. The site is the most common site for measuring pulse rate.</u>

4 0
3 years ago
Regulation of metabolic pathways is crucial during industrial processes, explain why and how?
cestrela7 [59]

Answer:

n biochemistry, a metabolic pathway is a linked series of chemical reactions occurring within a ... The degradative process of a catabolic pathway provides the energy required to ... Glycolysis results in the breakdown of glucose, but several reactions in the ... Metabolic pathways are often regulated by feedback inhibition. hope this help

Explanation:

5 0
2 years ago
Other questions:
  • Lymph from the intestinal lymph trunks drains into the ____________ and contains _________
    5·1 answer
  • Discuss the importance of collaborating with members of
    10·1 answer
  • A person who is severely allergic to nuts eats a candy bar without knowing that it contains finely chopped peanuts. Soon after m
    10·1 answer
  • A 32 year old woman comes to her primary care provider for a return visit with the chief complaint of joint pain and swelling fo
    5·1 answer
  • Levels of Organization
    11·1 answer
  • Which of the following best describes nonessential amino acids?
    10·1 answer
  • Messages in the
    13·1 answer
  • Cardiovascular disease risk is greatest for people who tend to store body fat in the _______________.
    12·1 answer
  • You see an infomercial reporting dramatic weight loss with a new dietary supplement. Since you have been looking for a way to sh
    5·1 answer
  • Mae has fought a chronic condition for many years and is now on hospice. When her nurse notices her lack of desire to eat, restl
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!