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 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

Homework Turn In Sections 37.1 and 37.2 Questions:

37.1 #1, 2, 4, 5 37.2 #1-5

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

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.

Digestive System

The Mouth

Teeth: crush food

(mechanical)

Salivary Glands:

Secrete saliva

Digestive enzyme

called amylase breaks

down sugars (chemical)

Tongue: Pushes food

Digestive System

Epiglottis: prevents

food from entering

resp. system

Pharynx: between

mouth & esophagus

(throat)

Esophagus: muscular

tube stomach

Digestive System

Stomach:

Muscles that

mechanically break

down food

Acidic gastric juice

breaks food down

chemically

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

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

Break

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

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

Homeostasis How are these four systems connected? Cellular Respiration:

C6H12O6 + O2 CO2 + H2O + ATP Glucose + oxygen carbon dioxide + water + energy

1. Digestion breaks down glucose enters blood to go to cells

2. Oxygen obtained by lungs enters blood to go to cells3. Cells use glucose & O2 to create ATP, CO2 and H2O

4. Carbon dioxide picked up by blood released from lungs5. Water & waste removed from blood by urinary system

Homeostasis: all organ systems work to keep body conditions balanced (water, energy, waste, temperature)

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