1. Digestive/Circulatory

2. Digestive System
Digestion is the breakdown of complex material and making it simplex
Rhythmic contractions are called Peristalsis

3. Mouth INGEST food by mouth
Teeth and Tongue do Mechanical Digestion (grinding/mashing)
Salivary Amylase is excreted and starts to breaks down starch

4. What’s the difference between chemical and mechanical digestions?

5. Esophagus ESOPHAGUS is a tube that goes from the mouth to the STOMACH
CHEMICAL DIGESTION of starch continues
Chemical Digestion is splitting large molecules into small molecules by enzymes

6. STOMACH Churns and Mashes food Muscular
Makes food into CHYME (add thick soupy mixture)
Begins chemical digestion of proteins by gastric juices (hydrochloric acid)

7. Small Intestine ALL CHEMICAL DIGESTION (ENZYMES )
Has VILLI, which are small fingerlike projections
Villi increase the surface area to absorb food

8. Small Intestine
Nutrients is absorbed through the VILLI and goes into your bloodstream - this is how your circulatory system and digestive system work together
i.e. sugar rush

9. Villi

10. ACCESSORY ORGANS
PANCREAS secretes enzymes into the small intestine to chemically digest all food
BILE made by the LIVER and stored in the GALLBLADDER is secreted to digest lipids

11. Large Intestine
What is not absorbed by the small intestine and is left goes to the Large Intestine
Water, Minerals, and Vitamins are absorbed and what’s left is called feces
Feces is eliminated, which is called EGESTION

12. Homeostasis Disrupted
Diarrhea: feces is not staying in large intestine and water is not reabsorbed
Constipation: feces remain in the large intestine
Appendicitis: infection of appendix
Ulcer: painful sore in stomach lining r

13. Fatty acids and Glycerol
Organic Molecules
Large Molecule
ENZYME
Broken Down Into
Carbohydrates
Maltase
Simple Sugars
Lipids
Lipase
Fatty acids and Glycerol
Proteins
Protease
Amino Acids

14. STOP

15. Circulatory System Nutrients is absorbed in the Villi by capillaries
Blood Vessels transport materials by the circulatory system
Circulation is the distribution of materials to the body

16. Pulmonary Circulation
Circulatory System
Pulmonary Circulation
Systemic Circulation
Blood goes
from heart
to lungs to get oxygen
Blood goes from heart
to the entire body,
via the aorta

17. Heart 4 chambers Muscular 2 Atria 2 Ventricles
Pumps blood through Vessels

18. Atria & Ventricles Right and Left Atria receive blood
Right and Left Ventricles pump blood into arteries
Right Ventricle sends blood to the lungs through the pulmonary circuit
Left Ventricle sends blood to the body through the systemic circuit via the AORTA

20. Blood Vessels Materials are transported by Blood Vessels
Blood Vessels are:
1) Arteries
2) Capillaries
3) Veins

21. Arteries- carry blood away from heart, are very muscular and elastic
Arteries- carry blood away from heart, are very muscular and elastic. The blood here is under pressure
Capillaries- connect arteries to veins and are microscopic. GAS EXCHANGE takes place in them
Veins- returns blood under LOW pressure from the capillaries, and they have valves

22. Blood Blood transports materials Parts of Blood: 1) Plasma
2) White Blood Cells
3) Red Blood Cells
4) Platelets

23. Plasma & Platelets
Plasma is the non-living part of blood that transports blood cells, hormones, and waste
Platelets- are either red or white, have no nucleus, and are involved in clotting

24. Red Blood Cells (RBC’s)
Red Blood Cells have NO nucleus
Made in Bone Marrow
Has the iron-rich pigment Hemoglobin which attaches oxygen, called Oxyhemoglobin

25. Homeostasis Disrupted
High Blood Pressure- pressure in the arteries in increased by stress, diet, genetics and it weakens the heart
Coronary Thrombosis- type of heart attack caused by a blockage of an artery
Anemia- blood does not have enough hemoglobin