Compare and contrast internal rotators and external rotators of the shoulder joint

Answers

Answer 1
Internal Rotation

Internal rotation, or medial rotation, occurs when you rotate your upper arms or your thighs toward the midline of your body. For example, if you stand in anatomical position and turn your arms and hands inward, so that your palms face your thighs, you would be internally rotating your shoulder. Several muscles in your shoulder -- namely the pectoralis major, latissimus dorsi and the deltoids -- accomplish this motion. Similarly, if you stand in anatomical position and turn your legs and feet so that your toes point inward, toward the space between your legs, you would be internally rotating your hips. Several muscles in your hips -- the gluteus minimus, gluteus maximus and piriformis -- accomplish this action.

External Rotation

When you externally rotate, or laterally rotate, your shoulder, you turn your arm and hand away from the center of your body so that your palm faces away from your thigh, when you’re standing in anatomical position. For the hip, external rotation involves turning your thigh so that your toes point out to the side. Deep within your hip, underneath your glutes, lie the muscles responsible for external rotation. Your shoulder external rotators include the poster fibers of the deltoids, the teres minor and the infraspinatus

Answer 2

The inner and outer rotators of the shoulder joint work with average and horizontal turn, separately. The inner rotator is fundamentally the subscapularis, while the outside rotators incorporate the infraspinatus and teres minor.

The shoulder joint, otherwise called the glenohumeral joint, is a multiaxial ball-and-attachment joint that empowers different developments including inner (average) and outer (sidelong) pivot. Inside revolution includes moving the front surface of the arm toward the midline of the body, essentially worked with by muscles like the subscapularis.

Alternately, outer revolution moves the foremost surface of the arm away from the midline, with muscles like the infraspinatus and teres minor assuming key parts.

The essential help for the shoulder joint comes from the rotator sleeve, a gathering of four muscles:

supraspinatus, infraspinatus, teres minor, subscapularis.

These muscles act to turn the arm as well as settle the top of the humerus inside the glenoid pit, working as unique tendons to offer primary help. Inward Rotators: SubscapularisExternal Rotators: Infraspinatus, Teres Minor


Related Questions

what is a period lasting for a few thousand years during which Earth gets warmer?

Answers

Answer:

interglacial is ur answer

Explanation:

Robert Hook discovered cells when viewing a _____ under a microscope.

box
blood
cork
plant

Answers

the answer is two cork

Answer:

Cork

Explanation:

Which of these energy resources was not created by by the Sun's energy? petroleum uranium coal

Answers

Uranium was not created by the Sun's energy.

The nuclear fusion occurred in the Sun is the responsible for the nucleosynthesis, which means the creation of elements, this is the formation of heavier nuclei from the fusion of lighter nuclei.

The heavier the element the higher the energy and temperature required. The Sun's temperature is enough for the sinthesis of lighter element. Elements from oxygen to iron require much more temperature. And elements heavier than iron (which includes uranium) needs the energy from the explosion of a Supernova.

So, the answer is uranium.

A sudden, loud noise will reflexively cause the tensor tympani muscle to __________ and cause the stapedius muscle to __________.

Answers

A sudden, loud noise will reflexively cause the tensor tympani muscle to contract, pulling on the malleus ossicle (tiny bone), and cause the stapedius muscle to contract, pulling up on the stapes ossicle.
When presented with a high-intensity sound stimulus, these two muscles contract, known as the acoustic (auditory) or stapedius reflex. The reflex decreases the transmission of vibrational energy to the cochlea, where it is converted into electrical impulses to be transmitted to the brain via the auditory nerve to then be processed.

Gee's arm was cut during an industrial accident. the blood was pouring from the wound in spurts. which type of vessel was severed?

Answers

Final answer:

The blood vessel likely severed causing blood to spurt out in Gee's injury is an artery, due to the high pressure at which arteries carry oxygen-rich blood from the heart. Immediate measures to control bleeding and seeking medical attention are crucial, and the body's automatic response includes a vascular spasm to reduce the bleeding.

Explanation:

The type of vessel that was likely severed in Gee's arm if the blood was pouring out in spurts is an artery. Arteries are blood vessels that carry oxygen-rich blood away from the heart at high pressure. This high pressure often results in blood spurting out rhythmically with the heartbeat when an artery is cut. In comparison, veins carry blood back to the heart at a lower pressure, and bleeding from a severed vein presents as a steady flow, rather than spurting.

In the case of a severe injury where an artery is severed, it is critical to control the bleeding and seek medical attention immediately to prevent severe blood loss. Emergency medical techniques such as applying pressure to the wound, using a tourniquet, or clotting agents may be employed until professional medical help is provided.

Vascular spasm is a body's natural response to injury where the smooth muscle in the walls of the blood vessel contracts to reduce blood flow and minimize bleeding. However, this is typically insufficient to deal with severe arterial bleeding, and further intervention is necessary.

Transmission of the disease to a susceptible human by handling contaminated surfaces is referred to as

Answers

The answer is Indirect transmission

Using repetition and deliberate practice to master skills and habits is essential to ________ memories.

Answers

The appropriate response is procedural memories. Procedural memory is a piece of the long haul memory that is in charge of knowing how to get things done, otherwise called engine aptitudes. As the name infers, procedural memory stores data on the best way to play out specific methods, for example, strolling, talking and riding a bicycle.
Final answer:

Using repetition and deliberate practice helps move information from short-term to long-term memory, aiding the formation of long-term memories. Techniques like elaborative rehearsal, chunking, and mnemonic devices can enhance this process.

Explanation:Repetition and Deliberate Practice in Memory Formation

Using repetition and deliberate practice to master skills and habits is essential in cementing long-term memories. This process involves moving information from short-term memory to long-term memory through active rehearsal. For example, when children learn their ABCs by singing the alphabet song over and over again. Additionally, procedural memories such as skills for riding bicycles or driving are also developed over time through repetition and practice.

Methods like elaborative rehearsal can enhance memory. This technique involves linking new information to already stored knowledge and repeating it. Lastly, another helpful strategy is chunking, where you organize information into manageable bits or chunks, such as breaking up a phone number into area codes and smaller groups of numbers.

Mnemonic devices are another effective method for aiding memory. They are especially useful when we want to remember larger pieces of information such as the order of planets in a solar system or steps of a complex mathematical operation.

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The process of copying a sequence of dna nucleotides into a complementary sequence of rna nucleotides is called

Answers

Called transcription

Explain why fungi cannot be stained by using stains that are commonly used to stain bacteria

Answers

Because cell wall of bacteria and fungi have different chemical composition

Before carbohydrates are absorbed, __________ digest disaccharides into monosaccharides

Answers

Before carbohydrates are absorbed, the enzymes sucrase, maltase and lactase digest disaccharides into monosaccharides in the small intestine. Sucrase breaks down sucrose into glucose and fructose, maltase breaks down maltose into two glucose, and lactase breaks down lactose into glucose and galactose.

Statistically, which adolescent is most apt to experience menarche first?

Answers

Rebecca, who is African American is most apt to experience menarche first.

What do you mean by menarche?

Menarche defines the onset of menstruation, which is a normal physiologic process that occurs at regular monthly intervals. Menarche typically occurs around age 12 but a few years earlier or later is completely normal. Menarche happens during a time of physical and sexual maturation in adolescence known as puberty.

Moreover, menarche is defined as the first menstrual period in a female adolescent. Menarche typically occurs between the ages of 10 and 16, with the average age of onset being 12.4 years.

Therefore, it is the stage of initiation of menstruation in the life of a female girl. it generally occurs at an age of 11-13 years. It refers to the beginning of the reproductive phase in girls.

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Explain how epithelial and connective tissues combine to form four types of membranes

Answers

Epithelial and connective tissues combine to form four types of membranes: mucous membranes (epithelial tissues are moist), serous membranes (line cavities that are not open to the outside environment), cutaneous membranes (skin that covers the surface of the body), and synovial membranes (produce synovial fluid).

What feature distinguishes adipose tissue from other connective tissues?

Answers

The extracellular material of connective tissue, which plays a major role in the ... feature that distinguishes connective tissue from the other tissues of the body.

True or false? the purkinje fibers are considered the pacemaker of the heart.

Answers

False the sinoatrial node is considered the pacemaker of the heart.

Chloroplasts are found in __________. chloroplasts are found in __________. neither plant cells nor animal cells animal cells only both plant cells and animal cells plant cells and some protists

Answers

Plant cells and some Protists

Answer:

 The correct answer about this question is PLANT CELLS AND SOME PROTISTS.

Explanation:

  Chloroplasts are organelles present in the cells of plants and other photosynthetic organisms such as algae. Algae belong to the Protista kingdom. However, in the protist kingdom there are also protozoa, which do not have the presence of chloroplasts, as they are heterotrophic beings, that is, they do not produce their food and do not have chloroplasts. Unlike algae, which present chloroplasts and perform photosynthesis.

  Main characteristics of chloroplasts:

- They are green in color due to the presence of chlorophyll. This compound wrote before is one of the responsible for photosynthesis.

- They are limited by a kind of envelope formed by two lipoprotein membranes.

- It has inside it a liquid known as stroma.

- They have DNA, RNA and ribosomes. Thus, they have the ability to perform the process of protein synthesis and multiply.

Translation and protein synthesis is taking place at the ribosome in this illustration. Where did the original instructions for this process originate?

Answers

The instruction originated from the nucleus

Answer:

DNA in nucleus

Explanation:

The recognition that two different stimuli call for two different responses is known as ____.

Answers

The answer is discrimination. It is a way of showing differentiation in terms of other categories such as things, animals, people or anything that exist. In which is connected to the statement above as it differentiates stimuli of different responses.

The cell theory is based on three major premises: Cells are the basic units of life. Each cell must come from a preexisting cell. All living things are made up of cells. Which of the following discoveries was the last to be made?

Answers

Each cell must come from a pre-existing cell.

According to the endosymbiotic theory and given the tree below, which was constructed from whole genome sequences or exemplar organisms from the three domains of life, where would be the most likely place for a branch containing the animal mitochondrial genome be connected? in other words, animal mitochondrial dna is most closely related to the complete genome of which type of organism?

Answers

Animal mitochondrial DNA is most closely related to the genome of bacteria. It is supposed that early eukaryotes engulfed bacteria according to endosybiotic theory. In bacteria there is no special organ like nucleus to hold the genome. In mitochondria also such genome can be seen.

Which particle is used to determine the atomic number of an element? A) Electron B) Neutron C) Proton D) Soutron

Answers

The answer is C proton!!!
The answer would be option C. Proton. They are used to determine the atomic number of an element.
Hope this helps!

Increased muscle fiber endurance can be affected by __________.

Answers

...the type of activity performed.

To get better  muscle endurance you need to exercise those muscles.
There are two types of increase: increase of the size of the fibers or a increase in the number of fibers (it's when the muscle fibers divide).  Either way, both this methods need training.




eating a diet rich in fibers, such as whole grain foods and oats. It can also be "affected" consistent daily exercises that strengthen and tone muscles.

How do single celled organisms, like paramecium, adapt to living in a hypotonic environment?

Answers

I believe it helps it remove excess water and prevent swelling.

Osmoregulation is a process through which do single celled organisms, like paramecium, adapt to living in a hypotonic environment.

Through a process known as osmoregulation, single-celled organisms like Paramecium adjust to life in a hypotonic environment. Osmoregulation is the control of the concentrations of water and solutes within an organism in order to preserve internal equilibrium or homeostasis.

In a hypotonic setting, the surrounding solution's solute concentration is lower than that of the Paramecium cell's cytoplasm. As a result, a concentration gradient is created where water seeks to enter the cell, possibly resulting in cell rupture or excessive swelling.

Contractile vacuoles are specialized structures seen in Paramecium. These vacuoles periodically contract, discharging the stored water from the cell, collecting extra water that enters the cell through osmosis. Through this procedure, excessive swelling is prevented, and the water balance is controlled.

Hence, osmoregulation is a process through which do single celled organisms, like paramecium, adapt to living in a hypotonic environment.

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How did the Mesozoic era end

Answers

Mesozoic era ended in the  Cretaceous period when the dinosaurs were over and death

Please select the word from the list that best fits the definition



The push or pull of one object on another


A.Gravity


B. Intertia


C. Weight

Answers

Answer: A) Gravity

Explanation:

Sample prep _____ pcr amplification _____ pcr purification _____ sequencing prep _____ dna sequencing _____ sequence analysis
a. computer builds dna sequence to match
b. copy the bacterial dna
c. production of variable length dna samples
d. extract dna by dissolving cell wall with buffer
e. remove contaminants from dna f. separate the individual dna pieces by length

Answers

it is b copy the bacterial dna

How are the two sugar-phosphate strands of a DNA molecule joined together

Answers

The two sugar-phosphate strands of a DNA molecule are held together by hydrogen bonding between the nitrogenous bases, which are paired in the interior of the helix.

The olecranon process would be found on the __________.

Answers

Olecranon process is found in ulna ... but olecranon fossa is found in humerus

The procedure that remove cerebrospinal fluid for diagnosing disorders is a(n) _____.

Answers

(LP) that's the right answer

The three major components of the cytoplasm are the ________.

Answers

Final answer:

The three main components of the cytoplasm are the cytosol, organelles, and inclusions. Organelles are specialized structures, while inclusions are non-functional components.

Explanation:

The three major components of the cytoplasm are the cytosol, organelles, and inclusions. The cytosol is a semi-fluid substance that encompasses the organelles and inclusions. Organelles are specialized structures within the cell that perform various functions such as energy production, protein synthesis, and waste disposal. Inclusions are non-functional components within the cytoplasm, including stored nutrients, secretory products, and pigment granules.

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Consider this animal cell. Which organelle is responsible for producing the energy for cellular processes?

Answers

The Mitochondria is the "Power House of the cell." This shows that the Mitochondria creates energy (Composed of ATP)

Answer:

The mitochondria is the key player in the animal cell energy production because it has no other element as important to that function.

Explanation:

The mitochondria are present in both animal and plant cells, nevertheless, the plant cells also have chloroplasts that are the major factor in the creation of the energy in the plant cell. Meanwhile, the animal cell has no presence of chloroplasts and they only rely on the mitochondria to carry on their energy-related activities. Therefore the mitochondria are considered the major energy function contributor in the animal cell.

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