Digestive, Excretory and Endocrine Body Systems

1
Digestive, Excretory and Endocrine Body Systems

• BY BRIANNA SHIELDS

2
DO NOW

• Complete the 10 multiple choice questions on the
  Do Now handout

3
GOAL

• To be able to describe the digestive, excretory
  and endocrine systems and how their functioning
  helps the body to maintain homeostasis

4
REVIEW- Without using notes!

• Describe how and what the circulatory system
  transports to and from the cells of the body
• The heart pumps our blood which transports oxygen
  and nutrients into the body cells and carbon
  dioxide and wastes out of the body cells

5
REVIEW- Without using notes!

• What are the two main structures within the
  circulatory system? What does each do?
• Heart and blood vessels Heart pumps the blood,
  blood vessels carry the blood

6
REVIEW- Without using notes!

• Name the various blood vessels
• Arteries, veins and capillaries

7
REVIEW- Without using notes!

• Differentiate between arteries, veins and
  capillaries
• Arteries transport blood with O2 in it away from
  the heart
• Veins transport blood to the heart with CO2 in it
• Capillaries are thin and found near major organs
  so gases can pass through them

8
REVIEW- Without using notes!

• Describe the pathway that oxygen follows when
  someone inhales (hint there are 5-6 major
  steps)
• Mouth/nose ---gt Trachea --gt Bronchial Tubes --gt
  Bronchi (branches) --gt Air sacs/alveoli --gt
  surrounded by capillaries

9
REVIEW- Without using notes!

• How do the respiratory and circulatory systems
  work together?
• Respiratory brings oxygen into the body and
  circulatory system transports it to cells, where
  it picks up CO2 and brings it to lungs where
  respiratory system gets rid of it

10
REVIEW- Without using notes!

• What are the 3 main parts of the nervous system?
• Brain, spinal cord, nerves

11
DIGESTIVE SYSTEM VIDEO

• Describe the path that food takes as it passes
  through the body

12
(No Transcript)
13
Digestive System Label your diagram
14
Digestive System

• GOAL

• Breaking food down into nutrients that cells can
  use
• Peristalsis- involuntary squeezing of food
  through the digestive tract

15
Pathway of Digestion
1. MOUTH- Digestion begins, starches broken
down (saliva and teeth)
2. ESOPHAGUS Food passes through (peristalsis)
16
Pathway of Digestion

• STOMACH
• Chemical Mechanical digestion (proteins broken
  down)

• SMALL INTESTINE
• Most digestion happens, digestion is completed-
  find villi for absorbing nutrients

17
Pathway of Digestion

• LARGE INTESTINE
• Stores eliminates undigested food

• ANUS
• Solid waste passed out

18
Excretory System Video

• What does the excretory system do? What organs
  are involved?

19
(No Transcript)
20
Excretory System Label your Diagram

• Skin Lungs Kidneys

21
Excretory System

• GOAL

• Ridding the body of cellular and solid waste
• Types of waste
• Water
• Heat
• CO2
• Salt
• Urine

22
Excretory System

• Organs of Excretion

• LUNGS- excretes CO2, water, heat
• SKIN- excretes water, salt, heat
• KIDNEYS- excretes water, salt, urine

23
Excretory System

• Organ of elimination

• ANUS/LARGE INTESTINE- gets rid of feces (s0lid
  waste)

24
Endocrine System Video

• What does the endocrine system do?
• What types of glands does your body have that are
  actually NOT part of the endocrine system?

25
(No Transcript)
26
Endocrine System Label your diagram
27
Endocrine System

• GOAL

• Glands make and release chemical regulators into
  the blood hormones to respond to changes inside
  outside the body

28
Endocrine System

• What do hormones do?

• 1. Help chemical reactions in body
• 2. Affect maturity reproduction
• 3. Help physical mental development

29
Endocrine System

• GLANDS

• Pituitary- controls all other glands
• Thyroid- regulates metabolism
• Thymus- fights infection
• Adrenals- fights body stress
• Islets of Langerhans- Produces insulin to control
  blood sugar levels
• Gonads/Testes- makes sex cells

30
Reviewing what weve learned

• What is the job of the digestive system?
• What is the job of the excretory system?
• What is the job of the endocrine system?

31
Reviewing what weve learned

• Name at least 2 parts of the digestive system
• Name all 3 excretory organs and the organ of
  elimination involved with the excretory system
• What are the major organs of the endocrine system?

32
WEBSITES

• Virtual Body Digestive tract animations
• My Body for Kids Digestive system animated
  diagram
• My Body for Kids- Kidney/Urinary tract animated
  diagram
• Yucky Stuff
• Interactive body system review
• Innerbody.com