Question
$5.00 Anatomy
- From Biology: General-Biology
- Closed, but you can still post tutorials
- Due on Apr. 28, 2012
- Asked on Apr. 26, 2012 at 09:31:15AM
Q:
When you are ready, respond to one of the topics below. Please
be sure to specify which topic you are responding to.
- Discuss the structures of the subdivisions of the small intestine
and the specific function of each. - Discuss the salivary glands; their anatomy and location and how
the secretion of each is different and determines its function. - Compare and contrast the three types of nutrient digestion and
metabolism. - Describe the structure and functions of the cardiac and pyloric sphincter muscles?
- Explain how bile from the liver and
gallbladder reaches the small intestine. What is the function of cholecystokinin? - Differentiate between anabolism
and catabolism. - Differentiate between absorption and assimilation.
$4.99
Small Intestine parts and functions
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- Posted on Apr. 26, 2012 at 09:56:36AM
A:
Preview: ...
Anatomy
Measuring over 6 meters in length, the small intestine stretches from your stomach to the beginning of your large intestine. For anatomical and medical classification it is broken in to three distinct zones - the duodenum, the jejunum, and the ilium. Despite its great length, the surface area of the small intestine is not sufficient to absorb all of the nutrients your body needs. Therefore, the structure of the small intestine contains millions of microscopic folds which act to increase t ...
The full tutorial is about 398 words long .
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Salivary glands and their functions
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- Posted on Apr. 26, 2012 at 10:00:44AM
A:
Preview: ... alivary glands contain polytene chromosomes that have been useful in genetic research.
Parotid glands
The parotid gland is the largest salivary gland and is found wrapped around the mandibular ramus. The secretion produced is mainly serous in nature and enters the oral cavity via Stensen's duct. You can usually feel this gland, as it is in the upper neck and feels like a rounded ball.
Submandibular glands
The submandibular glands are a pair of glands located beneath the ...
The full tutorial is about 338 words long .
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Cardiac Muscles and Pyloric Sphincter
- This tutorial hasn't been purchased yet.
- Posted on Apr. 26, 2012 at 10:09:27AM
A:
Preview: ... protein filaments. These are sliding filaments. Actin and Myosin are the two primary proteins that build the cardiac muscle fibers which are called myofibrils. The sub-units of myofibrils are called sarcomeres. Each sarcomere is made up of A bands and I bands. The A bands are subdivided by the M line and the H-zone, while I band is sub divided by the z-discs. The myofibril branches are connected by adherens junctions which help the heart in contracting forcefully. The 'T-tubules' are another feature of the cardiac muscles which are comparatively more broader than those of skeletal muscles. These structures run along the Z-discs of cardiac muscles. The T-tubules play an important role in excitation contraction coupling which drives the heart. Another feature that you see, when you observe a cardiac muscle, under an electron microscope are the intercalated disks. They are dark thin lines that divide cardiac muscle cells and they are perpendicular to the direction of the individual muscle fibers. The intercalated disks enable the transmission of muscle contraction signals. It ...
The full tutorial is about 860 words long .
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small intestine
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- Posted on Apr. 26, 2012 at 10:13:19AM
A:
Preview: ... a vital organ its process of dige ...
The full tutorial is about 27 words long .
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How the bile gets to the small intestine and the functions of Cholecystokinin
- This tutorial hasn't been purchased yet.
- Posted on Apr. 26, 2012 at 10:26:42AM
A:
Preview: ... ct. This duct then joins with a duct connected to the gallbladder, called the cystic duct, to form the common bile duct. The common bile duct enters the small intestine at the sphincter of Oddi (a ring-shaped muscle), located a few inches below the stomach.
About half the bile secreted between meals flows directly through the common bile duct into the small intestine. The rest of the bile is diverted through the cystic duct into the gallbladder to be stored. In the gallbladder, up to 90% of the water in bile is absorbed into the bloodstream, making the remaining bile very concentrated. When food enters the small intestine, a series of hormonal and nerve signals triggers the gallbladder to contract and the sphincter of Oddi to relax and open. ...
The full tutorial is about 556 words long .
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The difference between Anabolism and Catabolism
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- Posted on Apr. 26, 2012 at 10:29:17AM
A:
Preview: ... complex molecules (e.g. proteins) are synthesized from simple molecules (Amino acids).
3. It is an energy (ATP) requiring process.
4. e.g. Protein synthesis, Glycogen synthesis.
Catabolism:
1. It ...
The full tutorial is about 134 words long .
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The difference between absorbtion and assimilation
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- Posted on Apr. 26, 2012 at 10:32:32AM
A:
Preview: ... ell; 2) out of the microvillus cell; 3) into a capillary cell; 4) out of a capillary cell and into the capillary lumen.
Assimilation is the building of polymers using monomers. Fat monomers are assimilated in epithelial cells; glycogen ...
The full tutorial is about 184 words long .
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difference between absorption and assimilation..100%
- This tutorial hasn't been purchased yet.
- Posted on Apr. 26, 2012 at 11:08:48AM
A:
Preview: ... ne lumen and into a microvillus cell; 2) out of the microvillus cell; 3) into a capillary cell; 4) out of a capillary cell and into the capillary lumen.
Assimilation is the building of polymers us ...
The full tutorial is about 162 words long .
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Anatomy
- This tutorial was purchased 1 time and rated No Rating by students like you.
- Posted on Apr 27, 2012 at 11:46:13PM
A:
Preview: ... ted
o ...
The full tutorial is about 4 words long plus attachments.
Anatomy.docx (15K)