Articulaciones sinoviales
Las articulaciones sinoviales son conexiones entre componentes esqueléticos en las que los elementos implicados se encuentran separados por una estrecha cavidad articular. Además de incluir una cavidad articular, estas articulaciones tienen varios rasgos característicos.
En primer lugar, una capa de cartílago, habitualmente cartílago hialino, cubre las superficies articulares de los elementos esqueléticos. En otras palabras, las superficies óseas no contactan normalmente entre sí de forma directa. Como consecuencia, cuando se ven estas articulaciones en radiografías normales, un amplio intervalo parece separar los huesos adyacentes, porque el cartílago que cubre las superficies articulares es más transparente a los rayos X que el hueso.
Una segunda característica de las articulaciones sinoviales es la presencia de una cápsula articular consistente en una membrana sinovial interna y una membrana fibrosa externa:
La membrana sinovial se fija a los márgenes de las superficies articulares en la interfase entre el cartílago y el hueso, y envuelve la cavidad articular. La membrana sinovial está altamente vascularizada y produce líquido sinovial, que se acumula en la cavidad articular y proporciona lubricación a las superficies articulares. También aparecen sacos cerrados de membrana sinovial fuera de las articulaciones, donde forman bolsas sinoviales o vainas tendinosas. Las bolsas se interponen a menudo entre estructurahttp tendones y hueso, tendones y articulaciones, o piel y hueso, y reducen la fricción de una estructura al moverse sobre otra. Las vainas tendinosas rodean los tendones y también disminuyen la fricción.
La membrana fibrosa está formada por tejido conjuntivo denso y rodea y estabiliza la articulación. Partes de la membrana fibrosa pueden verse engrosadas para formar ligamentos, que estabilizan aún más la articulación. Los ligamentos externos a la cápsula suelen aportar un refuerzo adicional.
It’s is the nature of living organisms to give birth to offspring before they die. What are the two methods used by living organisms?
Answer:
sexual and asexual reproduction im pretty sure
Radiant energy from the Sun is very important to life on Earth. It is unique
because, unlike sound waves, it can travel through
Answer:
The sound waves it can travel through the wind
What is anabolism? Give an example. What is catabolism also give an example
Answer:
Anabolism is the synthesis of complex molecules in living organisms from simpler ones together with the storage of energy.
Examples of anabolism: bone growth and mineralization, and muscle mass build-up.
Catabolism: the breakdown of complex molecules in living organisms to form simpler ones, together with the release of energy.
Examples of Catabolism: glycolysis, the citric acid cycle, the breakdown of muscle protein in order to use amino acids as substrates for gluconeogenesis, the breakdown of fat in adipose tissue to fatty acids, and oxidative deamination of neurotransmitters by monoamine oxidase.
The neuronal serotonin reuptake transporter 5HTT1 is of great interest to the pharmaceutical sector. Your lab has recently isolated two compounds that bind directly to and act as inhibitors of serotonin uptake; these inhibitors have been named L2001 and L2002. Both L2001 and L2002 seem to reduce serotonin uptake 10-fold when added to cells individually. To characterize how L2001 works, your friend has discovered that L2001 does not affect the ability of 5HTT1 to bind serotonin, but instead seems to decrease the rate at which 5HTT1 is able to change its conformation. Another graduate student in the lab has been working on how L2002 affects 5HTT1 and has determined that L2002 acts in a manner consistent with its being a competitive inhibitor of 5HTT1 (i.e. competes with serotonin for its binding site). Given this information, would you predict that adding L2001 and L2002 together to cells would have a greater effect, a smaller effect, or no effect on 5HTT1 transport compared with the addition of only one of these inhibitors onto cells? Explain
Answer:
Adding L2001 and L2002 together to cells would have a greater effect on 5HTT1 transport compared with the addition of only one of these inhibitors onto cells
Explanation:
Due to technical problems, you will find the explanation in the attached file.
5. Count the number of hydrogen ions, oxygens,
and electrons on both sides of the equation
shown. Are they the same?
Answer:
1 hydrogen ion, 2 oxygen atoms and 4elctrons
The number of hydrogen, ions, Oxygen and electrons on both sides of the equations are:
Hydrogen = 4
Oxygen = 2
Electrons on both sides are the same.
What are atoms?Atoms are the smallest unit of matter. Particles inside atoms are referred to as subatomic particles. These can be found throughout the atom in various places. The particles are charged.
A neutron is neutral, a proton is positively charged, and an electron is a negatively charged particle that revolves around the nucleus. The nucleus contains protons and neutrons.
The reaction is when hydrogen attaches with oxygen, it forms water. The formula of water is [tex]\rm H_2O[/tex].
Therefore, Hydrogen = 4, Oxygen = 2 and there are the same numbers of electrons on both sides of the equation.
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In human newborns, especially premature ones, the blood–brain barrier is not yet fully developed. Why is this one reason to pay careful attention to the diet of infants?
Question 8(Multiple Choice Worth 1 points)
(04.03 MC)
During cellular respiration, which of the following is equal to the number of atoms of carbon in glucose?
Number of atoms of oxygen in water
Number of atoms of carbon in carbon dioxide
Total number of atoms of oxygen in water and oxygen gas
Total number of atoms of carbon in sugar and carbon dioxide
Total number of oxygen in carbon dioxide and water, i think
temperature decreases at high altitude
Answer:
Higher the altitude, the thinner the atmosphere gets. The total heat content of a system is directly related to the amount of matter present, so it is cooler at higher elevations.
Here cooler means decrease in temperature.
I will award Brainliest to the person who gives the best answer.
Which came first? The chicken or the egg?
Answer:
i mean the chicken woulda had to come first to lay the egg in the first place
Explanation:
Answer:
According to scientists chicken CE first because chicken are developed form of dinosaur
and dinosaur also lay eggs. But technically egg came first because The oldest fossils of dinosaur eggs and embryos are about 190 million years old. Archaeopteryx fossils, which are the oldest generally accepted as birds, are around 150 million years old, which means that birds in general came after eggs in general.
the equation for phtotsynthesis
The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
which feature is characteristic of an upland hardwood forest?
(A) trees that are surrounded by wetlands
(B) trees that form an ecological island
(C) trees that have deep roots
(D) trees that grow in a floodplain
Answer: (C) trees that have deep roots
The characteristic feature of an upland hardwood forest is : ( C ) Trees that have deep roots
An characteristic that makes a forest an upland hardwood forest is the presence of a tree canopy which covers more than 50% of the entire forest area emanating from various tree species present in the forest.
Hardwoods have deep roots which help them to get the necessary nutrients from the soil and this type of root system generally supports the structure of the trees overtime.
Hence we can conclude that The characteristic feature of an upland hardwood forest is Trees that have deep roots
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____9. The diagram shows four living organisms.
Which statement about the organisms shown is accurate?
(A) They are all single celled and have similar organs.
(B) They are all single celled and have identical organs.
(C) They are all multicellular and have similar organs.
(D) They are all multicellular and have identical organs.
1-When you get sick, should you take an antibiotic that a friend or family member offers you (this includes your mom!)? Why or why not?
2- Let's say you're sick and your doctor prescribes you an antibiotic that you have to take for 7 days. If you feel better after 4 days, should you continue taking the antibiotic for the full dose, or stop taking it? Why or why not?
3-If you have a virus, will taking antibiotics cure your infection? Why or why not?
Answer:
1. No! You should only take antibiotics that your doctor prescribes. If you take the wrong antibiotics, or the antibiotics are not necessary, they will not make you feel better and they could contribute to antibiotic resistance by exposing populations of bacteria to antibiotics. This can lead to bacteria evolving resistance genes because of natural selection.
2. No. You must finish the course of antibiotics. By completing the treatment, you increase the odds of killing all the bacteria causing your illness. This means that there are no bacteria left that might develop resistance to the antibiotics
3, No, antibiotics only work against bacteria, and will not work against viral infections. They usually attack the bacterial cell wall, interfere with bacteria reproduction, or interfere with protein synthesis
Explanation:
I cant do this I have no clue
When a cell grows and develops is called
Answer: Cell Cycle
pls put thanks and mark as the brainliest
Please Help!!!
Logging trees is often controversial. Why would some people support logging and some people not support logging?
Answer:
1 trees produce paper and you need that to write.
2 it can be for clearing land
why would they not support because there liberals they support Joe Biden.
The federal program that provides free health care to the poor is a. Medicare. c. Social Security. b. Medicaid. d. the GI Bill of Rights. Please select the best answer from the choices provided
Which of the following statements is NOT true?
Photosynthesis converts light energy into chemical energy.
Only a few energy conversions are 100 percent efficient.
Batteries change electricity into chemical energy.
Friction between moving parts can add energy to a system.
Answer:
its the second one
Explanation:
Answer:
The correct Answer is C. Sorry I'm a little late but I'm just trying to help people
Explanation:
I got this answer right on my test so I really hope this helps.
what does anerobic mean
Answer:
living, active, or occurring only in the presence of oxygen aerobic respiration. 2 : of, relating to, or induced by aerobes aerobic fermentation
Explanation:
How could a blood test reveal what foods a person has eaten?.
please help giving braineist and 25 points.Write two or more sentences to explain how climate change can affect plants and animals.
Rising temperatures lower many species survival rates due to changes that lead to less food, less successful reproduction, and interfering with the environment for native wildlife.
Rising temperatures lead to more frequent droughts, wildfires, and invasive pest outbreaks, leading to the loss of plant species. That has numerous detrimental effects including: Lowered Productivity: Longer droughts and increased number of heat waves will stress plants, causing them to be less productive
Which statements describe the importance of the six elements found in all living things? Check all that apply
30 points plz hurryyyyyyy
Answer:
The answer is A,C,D,F
Explanation:
I got it right
how do i complete this simple sugar fructose molecule ?
Answer:
If you still need the answer here it is! good luck
Which of the following is the best explanation for why carbon easily forms
many bonds?
A. Because it forms positive ions
B. Because it has four electrons available for bonding
C. Because it forms negative ions
ОО
D. Because it has six electrons available for bonding
SUBMIT
choose a plant or animal that you think is interesting. describe some of the threats or challenges
Answer:
If I were to choose an interesting plant or animal, I'd choose a "sloth."
Explanation:
A sloth is a mammal that can be found in tropical forests, particularly in the area of Central America and South America. It is a slow-moving animal (4 m/min. to be exact) that makes it prone to several dangers.
Its slow movement may allow predators to take advantage of it because it can never run or save its own life. It is truly helpless in the face of predators.It spends most of its time hanging in trees; thus, it needs trees for survival. If a wildfire would burn the forest down, then the sloths will be homeless. Being on the ground makes them useless, since their body is made for climbing.It is also prone to being electrocuted, since it often mistook electrical lines as branches of trees.what are the functions of the smooth endoplasmic reticulum
Answer:
The smooth endoplasmic reticulum makes cellular products like hormones and lipids.
For a more in depth explanation you could state it's responsible for the synthesis of lipids, steroids, and carbohydrates, as well as the metabolism of exogenous substances, such as drugs or toxins
How many ducks are in a row
Which of the following is also known as the ecosphere as it is a sum of all the ecosystems?
a.
Atmosphere
b.
Hydrosphere
c.
Biosphere
d.
Cryosphere
Answer:
c. Biosphere
Explanation:
The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It contains all living things above and below the surface of the Earth.
How does a manager of a business determine what steps to take to make a firm
profitable?
Answer: Learn to Read Financial Statements. Calculate the Profitability of Future Projects. Find Efficiencies in Your Processes. Create Budgets and Stick to Them. Conduct Market Research. Offer Bundled Products. Dedicate Time to Training New Hires. Foster Engagement in Your Employees.
If a hurricane destroys a wetland ecosystem off the coast of south Georgia, what kind of succession follows? A.classic ecosystem
B.climax community
C.primary succession D.secondary succession
If a hurricane destroys a wetland ecosystem off the coast of south Georgia, the kind of succession which follows here is secondary succession. Thus, the correct option is D.
What is Secondary succession?Secondary succession is the succession which occurs when the severity of disturbance is insufficient to remove all of the existing vegetation and soil from a particular site. Many different kinds of disturbances, such as fire, flooding, windstorms, and the human activities such as, logging of forests can initiate secondary succession.
Secondary succession occur in regions where life existed at some period of time.
If a hurricane destroys a wetland ecosystem completely off the coast of South Georgia, then the secondary succession will take place in this ecosystem.
Therefore, the correct option is D.
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