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Semester 1, Day 11

Semester 1, Day 11. Digestive and Urinary Systems. Agenda. Review for Circulatory and Respiratory Quiz Turn in Homework Take Quiz Lecture on Digestive and Urinary Systems Work/Reading Time. Review for Quiz. Relationship between circulatory and respiratory systems Label the heart diagram

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Semester 1, Day 11

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  1. Semester 1, Day 11 Digestive and Urinary Systems

  2. Agenda • Review for Circulatory and Respiratory Quiz • Turn in Homework • Take Quiz • Lecture on Digestive and Urinary Systems • Work/Reading Time

  3. Review for Quiz • Relationship between circulatory and respiratory systems • Label the heart diagram • Draw movement of blood on a heart diagram • Definitions for circulatory system: • Artery, Atrium, Blood, Blood Vessels, Capillaries, Heart, Plasma, Platelets, Red Blood Cells, Valve, Vein, Ventricle,White Blood Cells • Which side of the heart is oxygenated? How can you tell from the movement of blood? • Definitions for respiratory system: • Alveoli, Bronchus, Diaphragm, Epiglottis, Larynx, Lungs, Nasal Cavity, Trachea • Label a diagram of the respiratory system • Understand how the diaphragm functions Septum

  4. Homework Turn In • Sections 37.1 and 37.2 • Questions: • 37.1 #1, 2, 4, 5 • 37.2 #1-5

  5. Quiz on Circulatory and Respiratory System • Correction on Question 4 • Take quiz silently • Eyes on your own paper • When finished, flip over

  6. Digestive & Urinary • Digestive System: breaks down food mechanically and chemically for nutrients. Solid Waste • Urinary System: cleans, balances chemicals & regulates water for blood. Liquid Waste.

  7. Digestive System • The Mouth • Teeth: crush food (mechanical) • Salivary Glands: Secrete saliva • Digestive enzyme called amylasebreaks down sugars (chemical) • Tongue: Pushes food

  8. Digestive System • Epiglottis: prevents food from entering resp. system • Pharynx: between mouth & esophagus (throat) • Esophagus: muscular tube  stomach

  9. Digestive System • Stomach: • Muscles that mechanically break down food • Acidic gastric juice breaks food down chemically

  10. Digestive System • Stomach  Small Intestine • Small Intestine: 20 ft long, narrow muscular tube. Nutrients from food  blood. • Liver: bile for SI that breaks down fats • Gallbladder: stores bile until it enters the SI • Pancreas: produces insulin for SI, which regulates blood sugar

  11. Digestive System • Small Intestine  Large Intestine (Colon) • Large Intestine • Colon: absorbs water from indigestible food • Rectum: storage site for feces • Anus: exit for feces • Appendix: a vestigial structure human no longer need

  12. Break

  13. Urinary System • Kidneys: filter blood to remove waste (urine) • Aorta: blood from heart  kidney • Inferior Vena Cava: blood from kidney  heart • Renal Artery: blood from aorta  kidney • Renal Vein: blood from kidney  IVC • Ureter: urine from kidney  bladder • Urinary Bladder: holds urine • Urethra: moves urine out of body

  14. Urinary System • Kidney • Renal Artery: unclean blood to kidney • Renal Vein: clean blood away from kidney • Renal Medulla: regulates water & salt in blood • Renal Cortex: filters blood • Renal Pelvis: collects urine as blood is cleaned • Ureter: carries urine to bladder

  15. Homeostasis • How are these four systems connected? • Cellular Respiration: • C6H12O6 + O2 CO2 + H2O + ATP • Glucose + oxygen  carbon dioxide + water + energy • Digestion breaks down glucose  enters blood to go to cells • Oxygen obtained by lungs  enters blood to go to cells • Cells use glucose & O2 to create ATP, CO2 and H2O • Carbon dioxide picked up by blood  released from lungs • Water & waste removed from blood by urinary system • Homeostasis: all organ systems work to keep body conditions balanced (water, energy, waste, temperature)

  16. Reading/Work Time • Cornell Notes Section 35.1 and 37.3 • Read 35.2 • Questions: • 35.1 #1-4 • 35.2 #1-4 • 37.3 #1-4 • Chapter 35 Assessment #1-3, 7, 8, 10-14 • Chapter 37 Assessment #4-6,13, 25

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