Complete these introductory questions on excretion

Excretory System Problem Set

Watch this video

Read the following notes:

Excretion System

Draw and label the Nephron

1. What is the difference between excretion and secretion?
2. What is the difference between defecation and excretion?
3. List 4 organs that excrete substances and the substances they excrete. Also state which organ system each is a part of.
4. What ions do our bodies excrete?
5. Urine is yellow because .
6. How come the colour of urine can vary from day to day?
7. How does urine get from your kidneys to the outside world?
8. Why do animals have a bladder?
9. What is the difference between a ureter and a urethra? (Make up a mnemonic [memory trick] to remember which is where).
10. Why do males and females have different urethras? What is this difference?
11. How do you know when your bladder needs emptying?
12. Sketch or trace a kidney in cross section. Label all parts and include some kidney stones (in the correct place). Also detail the chemical composition of the kidney stones.
13. Summarize the differences between Bowman‟s capsule and the glomerulus.
14. Summarize the differences between glomerular capillaries and capillaries found throughout the rest of your body.
15. List, in order, the parts of the nephron.
16. Compare and contrast what happens to glomerular filtrate in the proximal convoluted tubule versus the distal convoluted tubule.
17. Compare and contrast what happens in the descending versus the ascending portions of the loop of Henle.
18. Which parts of the nephron are in the cortex of your kidney? Which parts are in the medulla?
19. Which cells of your nephron require the most energy? How are these energy needs met?
20. Explain countercurrent exchange as it happens in excretion. (Where does it occur? What is happening?)
21. If the people participating in the 30-hour-famine stop drinking water (and all other fluids) as well as not eating ...(a) What could happen to their blood volume and why? (b) How will their bodies compensate for this?
22. The blood volume problem experienced in question 24 could also lead to a blood pressure problem. (a) What could happen to their blood pressure? Why? (b) How would your excretory system react to this?

Complete your resp diagram and hand in your questions

the key is here

The small test on respiration is going to be Wed, May 2, 2018

Respiration notes

The picture link below shows a journey through the respiratory system

Notes are here and please get the diagram notes from me. Plus detailed notes here

Key questions are

Control of respiration

CO2 and H+ Levels

As monitored by the carotid and aortic bodies.  If these levels increase, they send a message to the  medulla oblongata Carotid bodies send the message through VAGUS NERVE.  Aortic bodies send the message through the GLOSSOPHARYNGEAL NERVE.  Medulla oblongata stimulates the rib cage and the diaphragm to move faster.

Acidosis:  pH < 7.35         too much carbon dioxide

Alkadosis: pHB> 7.45       not enough carbon dioxide (sometimes caused by hyperventilation)

Carbon monoxide:   hemoglobin has a higher affinity for CO than for O₂ how would CO affect internal and external respiration?

Circulatory System Unit Test on Wednesday

You are responsible for studying using the notes packages provided. 

The answers for the practice unit test can be found here.

 Focus on comparing/contrasting the types of blood vessels, the adult/fetal circulation system, and types of blood vessels.  There will be a question on blood types, ECG, and the cardiac cycle. 

Another notes package that you may find useful for your review is here. 

Feel free to drop by for help during lunch or after school.  I can be found in Mr.McC's room.

April 10 Notes

Notes from today's class can be found here.

Your subway map of the circulatory system is due on Thursday.

On Thursday we will begin with the following question:

What is the purpose of the oval window and arterial duct by-passes in the fetal circulation?

You will have 5 minutes to write your answer.

April 10 Assignment Extension

The circulatory system subway map assignment due date is extended from April 10 until April 12.  Tomorrow we will continue practicing taking blood pressure, then we will review some major blood vessels.
This review will help you to edit and add detail to your subway map. 

April 4 Notes

Today we talked about the heartbeat and the cardiac cycle.  Notes can be found here.

Quiz on Friday

• Multiple Choice and Short Answer
• All circulatory system content covered up until the break (functions of the circulatory system, blood vessels, anatomy of the heart (chambers and valves), and the path of blood through the heart
• Practice questions are on today's notes found above.

Homework due April 10:

Create a map of the circulatory system as an analogy for a subway system with stations.  The stations are the liver, kidneys, heart, lungs, etc. 

• Show arteries and veins as different pathways, and indicate the direction of flow
• Include areas of the body as stations (feet, liver, intestines, etc.)
• Include the heart as 4 different stations (4 chambers of the heart)
• The subway map is drawn neatly, colours are used to differentiate between veins and arteries