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Protection, Support & Locomotion Systems. Ch 34 Guide & Intro to Coordination Systems. Physical: SKIN SUPPORT MUSCULATURE. Chemical: NERVOUS ENDOCRINE. COORDINATION SYSTEMS Systems that Physically and Chemically coordinate the body:.

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Protection, Support & Locomotion Systems

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Protection support locomotion systems l.jpg

Protection, Support & Locomotion Systems

Ch 34 Guide &

Intro to Coordination Systems

Coordination systems systems that physically and chemically coordinate the body l.jpg








COORDINATION SYSTEMSSystems that Physically and Chemically coordinate the body:

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SYSTEMS: Multiple organs workingtogether to serve a body function

  • Tissues: cells working together to do a simple function

  • Organs: tissues working together to do a complex function

  • Cells: smallest basic units

Respiratory system

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Systems are made of: Organs, Tissues, Cells,& connective tissues

Tissues include:

a. Epithelial tissue

b. Muscle tissue

c. Connecting tissue

1) Cartilage

2) Tendons

3) Ligaments

Smoker’s Lung Tissue

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The Skin: 1. Structure……….

a. Epidermis made of

  • epithelial cells

    b. Dermis with

  • sweat glands

  • hair follicles

  • oil glands

  • capillaries

  • nerve cells

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A. The Skin..……….. the largest organ in the body

2. Function:

  • protection

  • temperature control

  • sensory

  • integrity of the body

  • secretions from glands

  • produces Vitamin D

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Support Systems may be:

Internal set of bones

Hard outer covering

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  • Hard outer covering

  • made of chitin or shell

  • examples:

    lobster, snail, squid

    Does the starfish have and exoskeleton ?

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No !.. An Endoskeleton:

Made of

  • 1). cartilage or

  • 2). bone

    Covered by

  • muscles

  • skin

    Examples: starfish, shark, mammals.

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B1. Human Endoskeleton made of

Boo !

  • Axial: skull, backbone, ribs, sternum

  • Appendicular: arms, legs, shoulders, hips,wrists, ankles

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Endoskeletons also have…….

1c. Ligaments that hold bone to bone

1d. Tendons that hold muscle to bone, “muscle tenders”

1e. Joints where 2 bones come together

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Types of Joints

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Joint Damage: Arthritis

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B2. Bone Formation:

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Bone Deformation: Lack of Vitamin D


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B3. The Support System Functions:

  • Protection of organs

  • Movement

  • Stores calcium & potassium

  • Produces RBC (marrow)

  • Supports

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C1.Three types of Muscle:

  • A. Smooth: involuntary control of internal organs for digestion, & blood vessels

  • B. Cardiac: involuntary control of the heart

  • C. Skeletal: Voluntary control of the skeletal muscles for movement

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The Musculature System……..

2. Structure:

  • Voluntary Muscles


  • Involuntary Muscles

    Cardiac- Heart


Striated Skeletal

Several nuclei

Box shaped, many mitochondria

Cardiac muscle l.jpg

Cardiac Muscle:

  • Fewer Striations

  • Fewer Mitochondria

  • Large nuclei

  • Lattice work of spaces between some cells

  • Still square shape

  • One nuclei per cell

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Smooth Muscle:

  • Eye shaped

  • One nuclei per cell

  • No lattice work

  • No striations

  • Long & drawn out

  • Fewer Mitochondria

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How Do Muscles Contract?

Muscle bundles work in opposite pairs:

Contracting & Relaxing

(biceps & triceps in the arms)

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4a. Sliding Filament Theory of MuscleContraction:

Relaxed Muscle


Muscles are made of

  • Bundles

  • Of fiberswith

  • Smaller subunits ofmyofibrils

    Myofibrils are made of

  • Actin & Myosin chemcials

  • require ATP energy

  • To slide past each other


Contracted Muscle

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C6. Musculature System Function:

  • Movement

  • Stores Protein

  • Maintains Body Shape

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