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Tissue Structure and Function. Chapter 9 in Textbook Chapter 4 in Lab Book. Tissue. An aggregation of cells and cell products of similar structure and embryonic origin that perform a common function. Histology. The study of tissues, especially their structure and arrangement.

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tissue structure and function

Tissue Structure and Function

Chapter 9 in Textbook

Chapter 4 in Lab Book

tissue

Tissue

An aggregation of cells and cell products of similar structure and embryonic origin that perform a common function

histology

Histology

The study of tissues, especially their structure and arrangement

basic tissue types
Basic Tissue Types
  • Epithelial
  • Connective
  • Muscle
  • Nervous
organ

Organ

An aggregation of tissues organized into a functional unit

system

System

Organs working together as functional units

epithelial tissue
Epithelial Tissue
  • Sheet-like layer of cells
  • Cover surfaces or line cavities
  • Often has glandular cells for fluid secretion
  • Endothelium
    • Epithelium that lines heart, blood vessels and lymphatic vessels
epithelial types
Epithelial Types
  • Simple Epithelium
    • Simple squamous – inside blood vessels
    • Simple cuboidal – lines ducts, ex. Kidney tubules, mucous glands
    • Simple columnar – lining of small intestine
    • Pseudostratified Columnar – trachea, bronchi
epithelial types14
Epithelial Types
  • Stratified Epithelium
    • Stratified squamous - skin
    • Transitional – urinary tract and bladder
connective tissue
Connective Tissue
  • Tissue that connects
    • Loose connective tissue
      • adipose (fat)
    • Dense connective tissue
      • cartilage
      • Bone
    • Vascular tissue
      • Erythrocytes: Red Blood Cells – carry oxygen
      • Leucocytes: White Blood Cells – part of the immune system
      • Platelets - clotting
slide20

Erythrocytes:

Red Blood Cells

muscle tissue types
Muscle Tissue Types
  • Smooth Muscle (=Involuntary Muscle)
    • Ex. Small intestine
  • Skeletal Muscel (=Voluntary Muscle)
    • Ex. Large muscles of body
  • Cardiac Muscle
slide24

Skeletal

Smooth

Cardiac

nervous tissue
Nervous Tissue
  • Includes Nerves, Spinal Cord, Brain
  • Cells are called neurons