Question

model 1
brain
nose/mouth
vagina
urethral orifice
anus

1. label the organs that can be identified in the above model.
2. given the organs identified in question 1, what organ systems are represented in the above model?
3. cellulose is a molecule that can not be digested by humans - its frequently found in our food, but passes through the digestive tract without being absorbed. using your pencil, track the pathway that cellulose would follow.

Explanation:

Step1: Identify organs

Brain, nose/mouth, lungs, heart, stomach, intestines, kidneys, urethral orifice, anus, vagina

Step2: Identify organ - systems

Nervous (brain), respiratory (nose/mouth, lungs), circulatory (heart), digestive (stomach, intestines), excretory (kidneys, urethral orifice), reproductive (vagina), and urinary (kidneys, urethral orifice)

Step3: Track cellulose pathway

Mouth → stomach → small intestine → large intestine → anus

Answer:

1. Brain, nose/mouth, lungs, heart, stomach, intestines, kidneys, urethral orifice, anus, vagina
2. Nervous, respiratory, circulatory, digestive, excretory, reproductive, urinary
3. Mouth - stomach - small intestine - large intestine - anus