The document summarizes several key human body systems including: 1) The integumentary system including skin, hair and nails that provides protection and regulates temperature. 2) The skeletal and muscular systems with bones, joints and muscles that provide structure, protection and movement. 3) Digestive system organs like the mouth, stomach and intestines that break down food and absorb nutrients. 4) The nervous system with neurons, brain and spinal cord that controls the body and senses like vision and hearing. 5) Respiratory and circulatory systems including lungs, blood, heart and blood vessels that supply oxygen and remove carbon dioxide throughout the body. 6) Urinary and immune systems with kidneys, bladder and

1. The Human
Body
• Chapters 34-39

2. Levels of Organization
Atom
Molecule
Cell

4. Organ Organ Systems

5. Organism

6. Protection, Support, Locomotion
• The Integumentary
System
– Skin, hair, nails
– Epidermis, dermis, sub
cutaneous
– Proteins for protection
– Maintains homeostasis
– sweating, chills

7. The Skeletal System
• Joints – where
bones meet
– Ball and socket
– Pivot
– Hinge

8. The Skeletal System
• Functions:
– Protection of internal
organs
– Production of blood
cells
– Muscle attachment

10. The Muscular System
• Smooth muscle
– Involuntary – can’t control
– Stomach lining, intestines
• Skeletal muscle
– Voluntary - control
– Biceps, triceps, hamstrings
• Cardiac muscle
– Involuntary
– Heart muscle

12. Digestion and Regulation
• The Digestive System
– Function – break down and absorb nutrients
– Organs
• Mouth – digestive enzymes for carbs
• Esophagus – tube to stomach
• Stomach – HCl and digestive enzymes
• Small Intestines – Absorption, high surface area
• Large Intestines - Storage
– Accessory Organs
• Liver – detoxification, produces bile
• Gall bladder – stores bile
• Appendix – vestigial structure

14. The Endocrine System
• Functions
– Chemical messages in
the body
– Works with nervous
system to control body
• Hormones
• Works by negative
feedback
• Glands

15. The Paomnnehal Pweor Of The Hmuan Mnid.
Aoccdrnig to a rscheearch as Cmabrigde
Uinervtisy,it deosn't mttaer in waht oredr
the ltteers in a wrod are,the olny iprmoatnt
tihng is taht the frist and lsat ltteer be in the
rghit pclae.
The rset can be a taotl mses and you can sitll
raed it wouthit porbelm. Tihs is bcuseae the
huamn mnid deos not raed ervey lteter by
istlef, but the wrod as a wlohe.

21. The Nervous System
• Neurons - Nerve cells
• Brain
• Spinal Cord
• The Senses
– Vision
– Hearing
– Smell
– Taste
– Touch

24. Respiration, Circulation and Breathing
• Respiratory System
– Trachea – cartilage covering
– Bronchi – right and left
– Lungs
– Alveoli – location of gas exchange
– Diaphragm – muscle for breathing

26. The Circulatory System
• Blood
– RBC’s – hemoglobin carries oxygen, anucleate
– WBC’s – protect from disease
– Platelets – clot blood, scab
– Plasma – liquid part of blood

27. The Circulatory System
• Blood Vessels
– Arteries – carry blood
away from heart
– Veins – carry blood to
the heart
– Capillaries – connect
arteries to
veins, diffusion

28. The Circulatory System
• Heart
– Heart is a
muscle, middle and a
little to the left
– Protected by
ribs, sternum, and
vertebrate
– Atrium – right and
left, small upper
chambers
– Ventricles – right and
left, large, lower

29. The Urinary System
• Kidneys
– Filter blood and
remove waste
– Maintain
homeostasis
• Ureters – carry waste
from kidney to
bladder
• Bladder – waste
(urine) storage
• Urethra – takes urine
out of body

30. The Immune System
• Body’s internal protection
• White blood cells
• Antibodies