Topic: Nutrition
AIM: How does the Human Digestive System
respond to a failure of homeostasis?
Homework: Castle learning Nutrition Review
Do Now: Explain this
cartoon, relating to our
current topic and using
scientific terms.
Stomach
Heartburn
•Acid reflux is when stomach acid
splashes up from the stomach into
the esophagus
•Treatment
•lifestyle changes (diet,
less stress)
•Over the counter or
prescription meds
Ulcers
• Open sores on the lining of the stomach
• Due to the breakdown of mucus lining in
that area
– As a result, stomach lining exposed to
enzymes and HCl
• Can be treated
with medication
Large intestines
Disorder of the large intestines
Constipation
• Feces moves too slow through the
digestive tract  therefore, too
much water is absorbed
• Results in difficulty egesting feces
• Treatment:
–Drink more water
–Eat more roughage
–Laxatives
Diarrhea
• Too little water is absorbed in large
intestine
• Frequently caused by infections or stress
• Can lead to dehydration
• Treatment:
– If dehydration occurs
 drink water
– Medication
song
Appendicitis
Appendicitis
• is an inflammation of the appendix, a 3
1/2-inch-long tube of tissue that
extends from the large intestine
• medical emergency
– surgery to remove
– If untreated It can burst
(perforate) spilling infectious
materials into the abdominal cavity
• Can be FATAL
Gall Bladder
Gall stones
• Small hard
particles made of
cholesterol which
form and collect in
the gall bladder
• May block the bile
duct causing pain
and discomfort
• Treated by surgical
removal of the gall
bladder