Body Tissues and Membranes Chapter 4. Lesson 1 Body Tissues.
section 3, chapter 5 tissues
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Transcript of section 3, chapter 5 tissues
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Section 3, Chapter 5Membranes, Muscles, and Neurons
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Epithelial Membranes
Serous Mucous Cutaneous Synovial
Types of Membranes
Serous Membrane
Mucous Membrane
Cutaneous Membrane
Synovial Membrane
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Types of Membranes
Serous Membrane
• Lines cavities not open to outside
• Thoracic cavity & abdominal cavity
• Mesotheilial Cells
• Specialized simple squamous epithelium
• Secretes serous fluid (watery)
• Reduces friction between organs
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Figure 1.11 Serous membranes of the heart and lungs
Serous Pericardium = serous membrane surrounding the heart
Pleura = serous membrane surrounding the lungs
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Figure 1.12 Serous membranes of the abdomen
Peritoneum – Serous membrane that surround several
abdominal organs
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Serous Membrane
Mucous Membrane
• Lines cavities & tubes open to outside
Types of Membranes
Serous Membrane• Lines cavities & tubes open to outside
• Nasal & oral cavity
• Digestive, respiratory, and reproductive tracts
• Goblet Cells – Secrete Mucus
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Cutaneous Membrane
• Skin
Types of MembranesTypes of Membranes
• Skin
• Protective covering
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Mucous Membrane
Synovial Membrane
• Composed entirely of connective tissue
Types of MembranesTypes of Membranes
Mucous Membrane• Composed entirely of connective tissue
• Lines joints
• Secretes synovial fluid = clear viscous fluid
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Muscle Tissues
Muscle Tissue
• Designed to contract
Muscle Tissues
Skeletal Muscle Smooth Muscle Cardiac Muscle
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Skeletal Muscle
• Moves Skeleton = voluntary
• Characteristics
• Long tubular cells
• Several peripheral nuclei
• Striated
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Smooth Muscle
• Involuntary
• Within walls of viscera
• Stomach, intestines, uterus, blood vessels, ect.
• Tapered cells, form broad sheets
• Single central nucleus
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Cardiac Muscle
• Located only within wall of the heart
• Involuntary control
• Striated
• Branched cells with central nuclei
• Intercalated discs
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Nervous Tissue
• Locations = brain, spinal cord, and peripheral nerves
• Regulates, coordinates, and integrates body activities
• Cells = Neurons & Neuroglia
• Neurons transmit impulses
• Neuroglia support neurons
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End Section 3, Chapter 5