Tissues Chapter 2 *You will need your notebook*

Tissues Groups of closely associated cells that are similar in structure and perform a common function Chapter 2: Cells and Tissues

Histology Histology = study of tissue

1.epithelial 1.epithelial tissue–protection 2.connective 2.connective tissue–supports 3.muscle 3.muscle tissue–movement 4.nervous 4.nervous tissue–control Types of Tissues

squamous – flat cuboidal – square columnar – tall Epithelial Cell Shapes

simple – one layer stratified – more than one layer other – transitional stretchable Epithelial Cell Arrangement

Epithelial Glands = secrete substances

True or False? 1. Connective tissue provides support. 2. Transitional epithelial stretches. 3. Cuboidal cells are flat. 4. Stratified means more than one layer. 5. Epithelial glands secrete substances. Review True True False True True

functions – strengthens the body and organs – protects internal organs – maintains the shape of organs – provides rigid framework for muscles to pull fibers – collagen – reticular – elastic Connective Tissue

connective tissue proper connective tissue proper – wide variety of locations and functions – plays a role in immune defenses cartilage cartilage – provides support and flexibility – minimizes friction bone tissue bone tissue (osseous tissue) – provides framework, protects organs, supports body blood blood – provides transportation, regulation, and protection – carries oxygen and nutrients, and carbon dioxide Classes of Connective Tissue

connective tissue proper – loose – dense cartilage bone blood Types of Connective Tissue

loose connective tissue – areolar–under epithelium – reticular–spleen – adipose–fat Loose Connective Tissue

dense connective tissue – regular dense– tendons – irregular dense– dermis – dense elastic–large artery walls Dense Connective Tissue

chondroblasts hyaline – ends of long bones elastic – external ear fibrocartilage – intervertebral discs Cartilage

osseous tissue – protects organs – supports the body Bone

Skeletal – Attached to bones Cardiac – Found in heart smooth – Walls of hollow organs Types of Muscle Tissue

Glial cells (neuroglial) – nonconducting cells that support, insulate, and protect neurons. Neurons- generate and conduct nerve impulses. Nerve Tissue

Match the following with 1–4 below: skeletal, cartilage, nervous tissue, elastic cartilage. 1. muscle tissue type 2. external ear 3. fiber 4. glial cells Review and Assessment Skeletal Elastic cartilage Cartilage Nervous tissue

Assignment Complete Tissue Review and turn in for grade