BS 4 - Excretion

Today's lesson

Review paragraph 6 - healthy lifestyles
Review the cardiac cycle
Learn about the working of the kidneys

1 / 10

Slide 1: Slide

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This lesson contains 10 slides, with text slides and 3 videos.

Lesson duration is: 45 min

Items in this lesson

Today's lesson

Review paragraph 6 - healthy lifestyles
Review the cardiac cycle
Learn about the working of the kidneys

Slide 1 - Slide

Slide 2 - Video

cardiac cycle

- atria contract, blood flows into

ventricles (ventricles relaxed)

- ventricles contract, blood

flows into aorta and pulmonary

artery (atria relaxed)

- Heart relaxes, blood flows

into atria

Slide 3 - Slide

Slide 4 - Video

ECG, electro cardiogram

1 - ?

2 - ?

3 - ?

Slide 5 - Slide

B4: Excretion

Getting rid of waste!

Slide 6 - Slide

Kidneys

Kidneys (2x)

-Receive blood from renal artery

-Blood plasma is filtered from waste products and excess substances.

-Result is urine.

Slide 7 - Slide

Kidneys

Urine

-Formed in the renal medulla.

-Gathered in the renal pelvis.

-Exits kidney through ureter(2x)

-Stored in bladder.

-Excreted through urethra(1x)

Slide 8 - Slide

Slide 9 - Video

To Do:Read 206-7

Do Qs 1 t/m 3, 5

Slide 10 - Slide