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Biology-Related Homework Help General Biology Topic started by: sara2010 on Nov 17, 2010



Title: Homework please help?????
Post by: sara2010 on Nov 17, 2010
1. The pancreas is an organ, which functions both as a digestive organ and as a hormonal gland.When functioning as a hormonal gland this organ secretes both __________________and
____________________to help regulate blood glucose levels.

2. Two valves are involved in the regulation of the flow of food into and out of the stomach. Name each and tell where they are located.
_____________________________ _____________________________ _______________________
_____________________________ _____________________________ _______________________

3. Trace the pathway of a mouthful of food through the digestive system. Number the choices in sequence.
_____anus _____pylorus _____rectum ______stomach
_____pharynx ______mouth _____large intestine ______esophagus
_____small intestine


4. Urine is carried out of the body from the bladder via a structure known as the ____________________.
Which sex has a longer one of these? ________________
5. What structure of the kidney does the filtering to produce urine? __________________


6. Spermatogenesis occurs within the _____________________________ ____ of the testis.


7. The three glands that together produce the seminal fluid are the _________________________,
_____________________________ ____ and _____________________________ __.


8. In the immature female pig, there is only one external opening for both the reproductive and the urinary tracts, which is known as the __________________________. In the ADULT female pig this common passageway is finally separated into two tubes. One will be the birthing canal and is known as the _____________ and the other will be responsible for the passage of urine from the bladder to the outside of the body and is known as the __________________.


Title: Re: Homework please help?????
Post by: bio_man on Nov 17, 2010
The pancreas is an organ, which functions both as a digestive organ and as a hormonal gland.When functioning as a hormonal gland this organ secretes both __________________and
____________________to help regulate blood glucose levels.

Insulin, glucagon

2. Two valves are involved in the regulation of the flow of food into and out of the stomach. Name each and tell where they are located.

The pyloric sphincter, or valve, is a strong ring of smooth muscle at the end of the pyloric canal and lets food pass from the stomach to the duodenum.

Esophageal sphincter. Located at the cardia, top of stop.


4. Urine is carried out of the body from the bladder via a structure known as the... Which sex has a longer one of these?

Urethra ... male (obviously)

5. What structure of the kidney does the filtering to produce urine?

Nephrone

6. Seminiferous tubules

7. Prostate gland, Cowper's gland and the seminal vesicles