Section 3, Chapter 5 Membranes, Muscles, and Neurons
Types of Membranes
Epithelial Membranes Serous Membrane
Mucous Membrane
Cutaneous Membrane
Synovial Membrane
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
Figure 1.11 Serous membranes of the heart and lungs
Serous Pericardium = serous membrane surrounding the heart Pleura = serous membrane surrounding the lungs
Figure 1.12 Serous membranes of the abdomen
Peritoneum – Serous membrane that surround several abdominal organs
Types of Membranes
Mucous Membrane • Lines cavities &Serous tubesMembrane open to outside • Nasal & oral cavity • Digestive, respiratory, and reproductive tracts • Goblet Cells – Secrete Mucus
Types TypesofofMembranes Membranes
Cutaneous Membrane • Skin • Protective covering
Types TypesofofMembranes Membranes
Synovial Membrane Mucous • Composed entirely ofMembrane connective tissue
• Lines joints • Secretes synovial fluid = clear viscous fluid
Muscle Tissue • Designed to contract
Muscle Tissues
Skeletal Muscle
Smooth Muscle
Cardiac Muscle
Skeletal Muscle • Moves Skeleton = voluntary • Characteristics • Long tubular cells • Several peripheral nuclei • Striated
Smooth Muscle • Involuntary • Within walls of viscera • Stomach, intestines, uterus, blood vessels, ect. • Tapered cells, form broad sheets • Single central nucleus
Cardiac Muscle • • • • •
Located only within wall of the heart Involuntary control Striated Branched cells with central nuclei Intercalated discs
Nervous Tissue • Locations = brain, spinal cord, and peripheral nerves • Regulates, coordinates, and integrates body activities • Cells = Neurons & Neuroglia • Neurons transmit impulses • Neuroglia support neurons
End Section 3, Chapter 5