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Do you have the answers to Penn Fosters 08804600 exam (Digestive

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Do you have the answers to Penn Foster's 08804600 exam (Digestive, Reproductive, And Urinary Systems) and exam 08804500 (Integumentary, Circulatory, And Respiratory Systems.) I would like to make sure all of my answers are correct.
Submitted: 2 years ago.
Category: Homework
Expert:  Josie-Mod replied 2 years ago.

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Customer: replied 2 years ago.

Yes, I am still waiting for an answer to my question.

Expert:  Josie-Mod replied 2 years ago.

Hi,

 

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Customer: replied 2 years ago.

Please have others experts review my question, it has been over three days since I have asked it.

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I am still waiting for an answer.
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Customer: replied 2 years ago.
Here are the questions for Exam 08804500 ( there are 25.) --

1. When an animal is given an injection under the skin, in what
order does the needle penetrate the layers of skin?
A. Epidermis, hypodermis, dermis
B. Epidermis, dermis, hypodermis
C. Hypodermis, dermis, epidermis
D. Hypodermis, epidermis, dermis

2. Albino animals lack pigment in their skin and hair. Which of
the following cells has the defect that causes this problem?
A. Melanocytes C. Mast cells
B. Fibroblasts D. Histiocytes

3. Which way does the epidermis grow?
A. From the stratum corneum to the stratum basale
B. From the stratum basale to the stratum corneum
C. From the stratum corneum and to the stratum spinosum
D. From the stratum granulosum to the stratum corneum

4. Which layer of the skin stores fat?
A. Hypodermis C. Dermis
B. Epidermis D. Stratum corneum

5. Which of the following is true regarding apocrine sweat glands?
A. The ducts empty into the base of the hair follicle near the hair bulb.
B. They’re the most common glands found in the skin.
C. These glands are found only on the footpads and nose of dogs and cats.
D. These glands produce a fluid that mixes with sebum.

6. Skin provides protection from infection by
A. providing a physical barrier against passage of bacteria.
B. generating heat to kill bacteria.
C. secreting antibodies from eccrine glands.
D. producing keratinocytes that engulf bacteria.

7. Horns are derived from the
A. epidermis. C. hypodermis.
B. dermis. D. stratum lucidum.
8. Which of the following is a component of sebum?
A. Lymph fluid C. Fatty acids
B. Proteins D. Elastin

9. Hair provides some insulation to the skin. When cold, the hairs stand up, increasing the thickness of the coat layer, and trapping more warm air near the skin. Which of the following is responsible for hair standing up?
A. Dermal papilla C. Hair follicle cells
B. The arrector pili muscle D. The cortex of the hair shaft

10. To investigate an animal with dyspnea, an instrument called a bronchoscope is passed down the trachea to visualize the airways. The first structure encountered is a site where the trachea divides into smaller airways. This site is called the tracheal
A. conchae. C. carina.
B. bifurcation. D. choana.

11. The four hallmarks of inflammation in tissue are
A. heat, swelling, redness, and itching.
B. pain, swelling, heat, and redness.
C. itching, heat, pain, and swelling.
D. redness, itching, pain, and heat.

12. The cells most involved with allergic reactions are
A. eosinophils, mast cells, and basophils.
B. neutrophils, eosinophils, and mast cells.
C. lymphocytes, basophils, and monocytes.
D. monocytes, eosinophils, and basophils.

13. An abnormal blood vessel creating abnormal blood flow around the liver is called a
A. portosystemic shunt. C. patent foramen ovale.
B. patent ductus arteriosus. D. valvular stenosis.

14. The correct path of blood flow through the heart and lungs is
A. left atrium, left ventricle, pulmonary artery, pulmonary vein, right atrium, right
ventricle, aorta.
B. left atrium, left ventricle, pulmonary vein, pulmonary artery, right atrium, right
ventricle, aorta.
C. right atrium, right ventricle, pulmonary artery, pulmonary vein, left atrium, left
ventricle, aorta.
D. right atrium, right ventricle, pulmonary vein, pulmonary artery, left atrium, left
ventricle, aorta.

15. Along with removing foreign particles from the blood and triggering an immune
response to infection or cancer, the spleen also
A. removes dying blood cells.
B. exchanges oxygen for carbon dioxide.
C. transmits electrical impulses to the heart.
D. regulates temperature.

16. The amount of air inspired and expired during a normal quiet breath is called
A. residual volume. C. tidal volume.
B. minimal volume. D. total lung capacity.

17. The two phases of the cardiac cycle are
A. systole and excitation. C. diastole and systole.
B. diastole and relaxation. D. excitation and contraction.

18. A decrease in the diameter of arteries causes
A. decreased hydrostatic pressure in the blood vessel.
B. increased blood flow to tissues.
C. decreased resistance to blood flow.
D. increased resistance to blood flow.

19. Which of the following is true of T-lymphocytes?
A. They may help stimulate B-lymphocytes to function.
B. They produce plasma cells.
C. They produce antibodies.
D. They mature and are “educated” in the bone marrow.

20. In people or animals with obstruction of the larynx, a tube is placed in the ventral neck allowing direct communication between the trachea and the outside skin and atmosphere. This bypasses both the larynx and the upper respiratory tract. What are
possible complications of having a tracheostomy tube in place?
A. The air in the lungs may become drier, and more bacteria may enter the trachea.
B. The air in the lungs may become excessively moist, and more bacteria may enter
the trachea.
C. The air in the lungs may become excessively moist, and fewer bacteria may enter
the trachea.
D. The air in the lungs may become drier, and fewer bacteria may enter the trachea.

21. Movement of leukocytes from capillaries to damaged tissue is called
A. inflammation. C. diffusion.
B. diapedesis. D. transmigration.

22. A diaphragmatic hernia will most likely result in _______ collapse.
A. heart C. tracheal
B. lung D. bronchial

23. If a surgeon removed a tumor in the trachea that was decreasing the trachea’s
diameter by half, the area of the trachea’s cross section and the flow of air through it
would
A. stay the same. C. triple.
B. double. D. quadruple.

24. Electrocardiography measures the heart’s electrical activity. An abnormality in the
heart’s electrical activity detected by electrocardiography is called
A. systole. C. diastole.
B. repolarization. D. arrhythmia.

25. Which of the following conditions involves excessive clotting of blood?
A. Aortic thromboembolism C. Vitamin K deficiency
B. Thrombocytopenia D. Hemophilia
Expert:  Family Physician replied 2 years ago.
Thank you for your question. I am happy to help you, but I didn't see the answers you selected.

Please post your answers, and I will check them for you, and explain any questions that you got wrong
Customer: replied 2 years ago.
For exam 08804500, I believe the answers are--

1-B
2-A
3-B
4-A
5-D
6-A
7-A
8-C
9-B
10-B
11-B
12-C
13-A
14-D
15-A
16-C
17-C
18-D
19-D
20-A
21-B
22-B
23-C
24-D
25-C
Expert:  Family Physician replied 2 years ago.
As I am working down through your answers, I will highlight those where I believe you have the incorrect answer and a reference for you

Question #12
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2847274/

Question#14
http://www.cardioconsult.com/Anatomy/

Question #19
http://www.youtube.com/watch?v=707jUopYDFs

Question #23 (Area of a circle is a function of the SQUARE of the radius - as the radius increases, the area goes up faster.... 2 squared is equal to ____
http://www.mathgoodies.com/lessons/vol2/circle_area.html

Question #25
http://pets.webmd.com/cats/aortic-thromboembolism-cats



Customer: replied 2 years ago.
I'm uncertain about number 19's answer. Since D was ruled out, A seems to be the most accurate now. Could you please double check if A ,They may help stimulate B-lymphocytes to function, is the correct answer to ,"Which of the following is true of T-lymphocytes?"
Expert:  Family Physician replied 2 years ago.
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/B/B_and_Tcells.html

Specifically the T4+ cells
Expert:  Family Physician replied 2 years ago.
.... So yes, the correct answer would be A

Good job
Expert:  Family Physician replied 2 years ago.
Let me know if you figured out the rest of the ones I highlighted.
Customer: replied 2 years ago.
Sorry for such a late response but I wanted to Thank you so much! 100% of the answers are correct! I was also wondering if you would still be able to check over my answer on exam 08804600 as listed in my origanal question. Thank you once again for your time and knowledge!
Expert:  Family Physician replied 2 years ago.
Sure...Just post the questions and your answers and I'll check them
Customer: replied 2 years ago.
1. A dog eats a piece of meat, composed primarily of protein. In what order is the protein broken down during digestion?
A. Amino acids, peptides, polypeptides
B. Polypeptides, peptides, amino acids
C. Peptides, polypeptides, amino acids
D. Polypeptides, amino acids, peptides

2. Fermentation of cellulose in the rumen yields
A. fatty acids. C. triglycerides.
B. sugars. D. cholesterol.

3. A large amount of fermentation in hindgut fermenters occurs in the
A. rectum. C. cecum.
B. jejunum. D. ileum.

4. Which of the following animals has a large intestine that serves as a site for fermentation as well as absorption of water and electrolytes?
A. Dog C. Cat
B. Horse D. Sheep

5. The simple stomach differs from the esophagus because it
A. has cells possessing microvilli.
B. has a third layer in the muscularis called the oblique muscle layer.
C. secretes trypsin.
D. doesn’t digest food as the intestine does.

6. To access the rumen of a cow surgically, a veterinarian would make an incision in the
A. left thorax. C. right abdomen.
B. right thorax. D. left abdomen.

7. Which of the following is a set of organs that makes up the digestive organ system?
A. Esophagus, stomach, heart, liver, pancreas
B. Esophagus, stomach, intestine, liver, pancreas
C. Esophagus, stomach, kidney, liver, pancreas
D. Esophagus, stomach, epithelium, liver, pancreas

8. Pepsin is a/an
A. proenzyme. C. amino acid.
B. polypeptide. D. active enzyme.

9. Contractions that propel food down the entire gastrointestinal tract are known as
A. peristalsis. C. active transport.
B. emulsification. D. diffusion.

10. Which of the following is true regarding angiotensin?
A. It’s produced by juxtaglomerular cells.
B. It stimulates the release of aldosterone.
C. It’s an inactive protein.
D. It inhibits the release of aldosterone.

11. Angiotensin is a/an
A. inactive protein. C. liver enzyme
B. waste product. D. active protein.

12. Spermatogenesis occurs in the
A. urethra. C. epididymis.
B. glans. D. seminiferous tubules.

13. The tubes carrying semen from the testes to the urethra are the
A. vas deferens. C. spermatic cords.
B. seminiferous tubules. D. ureters.

14. Which hormone stimulates contraction of the myometrium?
A. Vasopressin C. Oxytocin
B. Follicle-stimulating hormone D. Luteinizing hormone

15. Which of the following substances can’t pass through the glomerular capillaries?
A. Proteins C. Electrolytes
B. Ions D. Water

16. Oogenesis occurs in the
A. ovaries. C. oviducts.
B. infundibulum. D. uterus.

17. Contraction of the uterus to its nonpregnant size is known as
A. lactation. C. parturition.
B. involution. D. micturition.

18. _______ is a waste product produced in the liver from the breakdown of proteins.
A. Urea C. Sodium
B. Bicarbonate D. Creatinine

19. In cows, branches of the ureters that extend into the medulla are called
A. sigmoid flexures. C. bulb of the glans.
B. calyces. D. prepuce.

20. In canines, the bone that the urethra passes through the penis is called the
A. sigmoid flexure. C. bulb of the glans.
B. calyx. D. os penis.

21. The process of giving birth is known as
A. lactation. C. parturition.
B. involution. D. micturition.

22. Cornification of vaginal epithelial cells occurs during the _______ stage of the estrus cycle.
A. metestrus C. anestrus
B. proestrus D. diestrus

23. Tissue hypoxia stimulates kidney cells to release
A. renin. C. aldosterone.
B. erythropoietin. D. angiotensin

24. The stage of the estrus cycle in which no active reproduction occurs is called
A. anestrus. C. metestrus.
B. proestrus. D. diestrus.

25. The process of releasing urine from the bladder is known as
A. active transport. C. reabsorption.
B. secretion. D. micturition.

Customer: replied 2 years ago.
The answers that I believe are correct are bolded. Many I am unsure of. Once again, thank you for your help.
Expert:  Family Physician replied 2 years ago.
Question #1 - amino acids are the building blocks of peptides, "poly" is the prefix that means "many". Your answer is going from smallest to largest

Question #8
http://books.google.com/books?id=VL7gj_blbRoC&pg=PA190&lpg=PA190

Question #13
Ureters connect the kidney to the bladder...

Question #15
Ions are very small - consider the molecular size of the various substances

Question #17 - your answer is the term that describes giving birth (see question 21)
http://www.birthsource.com/scripts/article.asp?articleid=309

Question #18 - Sodium is an essential electrolyte - not a waste product
http://www.elmhurst.edu/~chm/vchembook/630proteinmet.html





Customer: replied 2 years ago.
Can you please review these new answers before I finalize them on the exam?
They are listed below--
01-B
08-B
13-A
15-A
17-B
18-A
Expert:  Family Physician replied 2 years ago.
#8 - Hydrochloric acid converts the proenzyme in the active form pepsin

The others seem OK
Customer: replied 2 years ago.
So it is C-amino acid?
Expert:  Family Physician replied 2 years ago.
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Tutor in many fields since college. Physician with MBA