Identify structures and functions of prokaryotic and eukaryotic cells; plant and animal cells.
Cells in your body have specific functions (jobs).
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Transcript of Cells in your body have specific functions (jobs).
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Cells in your body have specific functions (jobs).
Fat Cell White Blood Cell Red Blood Cell Platelet
Nerve Cell Muscle Cell Bone Cell
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Cells with similar functions working together form a TISSUE.
Nerve Tissue
Blood
Adipose Tissue(fat tissue)
Muscle Tissue
Bone Tissue
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EPITHELIAL TISSUE
(3 types)
Cuboidal cells
Squamous cells Columnar cells
Lining of lungs, heart, mouth, blood vessels, and skin.
Lining of stomach, intestines, nose, ears, and tongue
Lining of glands, kidneys tubules, ducts of glands
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CONNECTIVE TISSUEadipose tissue (fat cells) cartilage (chondroblast cells) blood (platelets, red and white blood cells) bone (osteoblast cells)
cartilage bloodadipose bone
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NERVOUS TISSUE• Brain• Spinal Cord• Nerves
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Smooth Muscle Tissue
Cardiac Muscle Tissue
Muscle Tissue
Skeletal Muscle Tissue
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SMOOTH MUSCLEFound in blood vessels, stomach, intestine, esophagus,
•Not striated•Involuntary•Not branched•Slow to tire
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SKELETAL MUSCLE
•Striated•Voluntary•Not branched •Tires when working hard
attaches to and moves bones.
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CARDIAC MUSCLEFound only in the heart.
•Striated•Involuntary•Branched •Never tires
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Two or more tissues working together make up an ORGAN.
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Organs working together make up an ORGAN SYSTEM.
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Homeostasisis the state of
having a stable internal
environment.
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OBJECTIVES•Discuss the functions of the skeletal system.•Describe the structure of a bone.
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FUNCTIONS OF THE SKELETAL SYSTEM
•Provides shape and support•Allows movement•Protects vital organs and tissues
•Stores certain materials•Produces blood cells
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The Skeletal System is the body’s living framework.
206 bones make up the skeleton.
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Most of the skeletal system is made up of bones, ligaments, tendons, and cartilage (connective tissues).
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The skeleton is divided into two parts.
•Axial skeleton•Appendicular skeleton
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Axial Skeletonskull
ribs breastbone
vertebral column
Appendicular Skeleton
shoulders
arms and hands
pelvis/hips
legs and feet
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Axial SkeletonProtects the Organs.
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Appendicular SkeletonProvides Movement
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Development of Bone
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Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Structure of Long BoneStructure of Long Bone
Figure 6.3a, c
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Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Structure of Long BoneStructure of Long Bone
Figure 6.3a,b
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Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Microscopic Structure of Bone: Compact BoneMicroscopic Structure of Bone: Compact Bone
Figure 6.5a, b
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Ball and Socket A ball and socket joint allows for radial movement in almost any
direction. They are found in the hips and shoulders.
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Hinge A hinge joint allows extension and retraction of an appendage.
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Injuries to the skeletal and muscular systems.•Sprain – ligaments and tendons are torn or pulled beyond their stretching range.
•Fracture – a break in the bone.•Dislocation – when a bone is forced out of its joint.
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The End!
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