1. What is the function of the organ shown below?. C. Produces enzymes that break down carbohydrates, proteins, and fats . What is the name for the muscular contractions that push food through the digestive system?. 2. B. Peristalsis. 3.
What is the function of the organ shown below?
C. Produces enzymes that break down carbohydrates, proteins, and fats
What is the name for the muscular contractions that push food through the digestive system?
The small intestine shown below contains lymphatic vessels but no capillaries. Which nutrient will be absorbed by this small intestine?
C. Fatty acids
A diagram of the human digestive system is shown below. Removing which organ would have the smallest impact on digestion, absorption, and elimination? (Assume the system will remain connected if a large organ is removed.)
No major role in digestion other than being a passageway
The digestive system below contains a mouth, a salivary gland, a stomach, a duodenum, and a pancreas.
Which of the following foods will digest most completely in this system?
- No chief cells (make pepsin), no parietal cells (acid) and no gall bladder (bile). Proteins and fats won’t be digested well PASTA is mostly carbs which are digested by amylase in mouth and pancreatic enzymes in small intestine.
The Respiratory System
How many times do you breath a day?
- 21, 600 times!
Breathing: involuntary – part of the brain detects the concentration of CO2 in the blood.
Diaphragm - muscle located beneath the lungs
More oxygen in, and CO2 out
Alveoli: Bronchi bronchioles in the lungs air sacs called alveoli (bunch of grapes).
- CO2 from the blood diffuses into the alveoli
- O2 from the alveoli diffuses into the blood
* Gases diffuse across two membranes
Parts of the Respiratory System
Due Monday in class