What is the digestive tract? A long continuous tube with food first entering it at the mouth.
What happens to undigested materials in the digestive tract?
Sketch the path that food takes through the digestive tract. Be sure to include the mouth, esophagus, stomach, duodenum, small intestine, appendix, large intestine rectum, and all 4 sphincters.
What is the function of the mouth in the digestion process? The teeth and tongue begin the mechanical breakup of food and mix it with saliva.
What is the term for the small mass of food that enters into the esophagus? bolus
What triggers peristalsis? presence of the bolus in the esophagus triggers peristalsis.
What is the function of the cardiac sphincter? Closes the entrance to the stomach and prevents its contents from re-entering the esophagus
What is the mucous membrane? protective mucous coating which prevents digestion
How long is the small intestine? 20 feet long
Where does most digestion and absorption of nutrients take place? small intestine
What increase the surface area of the small intestine? villi
What is the first section of the small intestine? What is its function?
Where is bile stored? gallbladder
What is segmentation? grabbing of a tube tightly at various places around the middle and squeezing so its contents are broken into smaller pieces.
When does the ileocecal sphincter open? when the food builds up in the small intestin
What is the function of the anal sphincter? Stops waste from leaving body until you make it
What is the function of the appendix in humans?
Where does digestion begin? mouth
What is gastric juice made of? Hydrochloric acid and enzymes
Where are enzymes released in the small intestine produced? the pancreas
What is the function of the following enzymes: amylase, lactase, maltase, sucrase, and lipase? enzymes
There are two ways that nutrients get into the blood stream. Describe each method.
Wednesday, April 16, 2008
Wednesday, April 9, 2008
Hormonal Control of the Menstrual Cycle worksheet
1.What is a hormone? Any of various internally secreted compounds, as insulin or thyroxine, formed in endocrine glands, that affect the functions of specifically receptive organs or tissues when transported to them by the body fluids.
2.What system is responsible for the production of hormones? The reproductive system.
3.Sketch a picture of the female reproductive system. Include the oviduct, ovaries, uterus, cervix and vagina.
4.Where does the embryo undergo most of its development? The uterus
5.What is another name for the fallopian tube? The cervix
6.Where does fertilization take place? The ovaries
7.What is ovulation? To produce and discharge eggs from an ovary or ovarian follicle.
8.What is the follicle converted to? The corpus luteum.
9.What happens during the flow phase? The uterine lining sloughs off.
2.What system is responsible for the production of hormones? The reproductive system.
3.Sketch a picture of the female reproductive system. Include the oviduct, ovaries, uterus, cervix and vagina.
4.Where does the embryo undergo most of its development? The uterus
5.What is another name for the fallopian tube? The cervix
6.Where does fertilization take place? The ovaries
7.What is ovulation? To produce and discharge eggs from an ovary or ovarian follicle.
8.What is the follicle converted to? The corpus luteum.
9.What happens during the flow phase? The uterine lining sloughs off.
The Urinary Worksheet
What are three functions of the kidneys? Filters all matter not just waste products. Selectively reabsorbs all the substances that the body can make of use. Eliminates waste products from the blood in the form of urine.
What is the protective layer around the kidney? The peri-renal capsule.
What is the outer layer of the kidney? The cortex.
What is the urine collection system of the kidney? The medulla.
What is the dilated end of the ureters called? The pelvis.
What is the protective layer around the kidney? The peri-renal capsule.
What is the outer layer of the kidney? The cortex.
What is the urine collection system of the kidney? The medulla.
What is the dilated end of the ureters called? The pelvis.
What is the function of the bladder? To store urine.
What transports urine in males? Females? Male/Urethra- transports urine to the outside of the body. It also carries semen. Female/Urethra- Only transports urine to the outside of the body.
Monday, April 7, 2008
Basic Resperatory Worksheet
What are the two entrances for oxygen to enter the respiratory system? Nose and mouth.
Where does the air go to from the nose and mouth? Pharynx.
In between the pharynx and the trachea what structure does this lesson leave out? The larynx.
Where is the trachea located in reference to the esophagus? Anterior.
What structures moisten the air in the Respiratory System? Nose and mouth.
What is the name for the small air sacs at the end of the bronchioles? The alveoli.
Where does gas exchange take place in the lungs? In the alveoli.
What is the main muscle of respiration? Diaphragm.
What happens when we inhale? The diaphragm contracts, lowering the air pressure in the lungs, allowing them to take in air. Exhale? The diaphragm relaxes, increasing the air pressure so the lungs release air.
Where does the air go to from the nose and mouth? Pharynx.
In between the pharynx and the trachea what structure does this lesson leave out? The larynx.
Where is the trachea located in reference to the esophagus? Anterior.
What structures moisten the air in the Respiratory System? Nose and mouth.
What is the name for the small air sacs at the end of the bronchioles? The alveoli.
Where does gas exchange take place in the lungs? In the alveoli.
What is the main muscle of respiration? Diaphragm.
What happens when we inhale? The diaphragm contracts, lowering the air pressure in the lungs, allowing them to take in air. Exhale? The diaphragm relaxes, increasing the air pressure so the lungs release air.
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