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The Human Body. Life Sustaining Processes. Let’s Take A Look …. Inside the Human Body Start at 2:50min. Overview …. Respiratory System Circulatory System Nervous System Skeletal System Muscular System Integumentary System Exocrine System Endocrine System Digestive System
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The Human Body Life Sustaining Processes
Let’s Take A Look … Inside the Human Body • Start at 2:50min.
Overview … • Respiratory System • Circulatory System • Nervous System • Skeletal System • Muscular System • Integumentary System • Exocrine System • Endocrine System • Digestive System • Lymphatic System • Urinary System Life Sustaining Processes: • Support & Movement • Energy Flow • Regulation • Defense • Waste Management • Gas Exchange • Responds
This weeks topics Homeostasis Comparative Anatomy Levels of Organization
Comparative Anatomy • Your body is just like a machine.. Only BETTER..!! • Think about your body: How is the human body similar to non-living objects… ??
Homeostasis • Staying healthy keeps our body in balance!! • Regulation of life sustaining conditions is called Homeostasis
Internal Life Sustaining conditions: • Temperature
Internal Life Sustaining conditions: • Blood Pressure • pH • Blood Sugar
Levels of Organization • Cells • Basic unit of life • Tissues • Made of different cells working together • Organs • Made of different tissues working together • Organ Systems • Made of different organs working together Organisms
BIG IDEA: Working together to achieve homeostasis …. Topic 2: • Support & Movement • Skeletal System • Muscular System • Nervous System
Skeletal System Function: • Gives the body: • Support • Form • Protection
Skeletal System Structure: • Bones • Ligaments • Cartilage
Skeletal System Structure: • Bones • 206 bones • Store Minerals • Make Blood Cells • Protect Organs • Attachment for muscles
Skeletal System Structure: 2. Ligaments • Hold bones together
Skeletal System Structure: 3. Cartilage • Protects the ends of bones • Forms Ears & Nose
So.. What are the 3 structures of the Skeletal System? • Bones • Ligaments • Cartilage
We have 206 bones… We will learn 22 bones …
Muscular System Function: • Attaches to bones (movement) • Allows movement inside the body (blood, food, urine) • Generate body heat
Muscular System Structure: • Skeletal Muscles • 600 muscles attach to bones & move bones at joints • Smooth Muscle • Make tubed organs like intestines, blood vessels & bladder • Cardiac Muscle • Make the heart
There are over 600 skeletal muscles … • We will learn 14 skeletal muscles …
Nervous System Function: • Sends impulse to muscles & glands Structures: • Brain • Spinal cord • Nerve cells • Sense organs (Eyes, Nose, Tongue, Skin)
How to the 3 Systems Work together? • Skeletal System • Muscular System • Nervous System • Nerves send an impulse to the Muscles • Muscles contract & pull on Bones • Bones then cause movement at joints • Nerves also send impulses to cardiac & all smooth muscles. • Those muscles contract and cause internal movement for urine, blood & food.
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