Tissue Types

Key Terms Histology: ______________________. ____________: groups of cells which are similar in structure and which perform common or related functions.

Four Basic Kinds of Tissues ________________ Connective Tissue Nervous Tissue

Epithelial Tissue Epithelial Tissue Locations: ___________________________ Lines the cavities, tubes, ducts and blood vessels inside the body Covers the organs inside body cavities Epithelial Tissue Functions: ___________________________, Protection against microbial invasion, __________________________________, Filters, secretes & reabsorbs materials and Secretes serous fluids to lubricate structures.

Connective Tissue Connective Tissue: Connective Tissue Functions: _____________________________ Connective Tissue Functions: ________________________________, Tendons, ligaments, etc. Protects & cushions organs and tissues, ______________________ Transports substances (blood).

Muscle Tissue Muscle Tissue: Muscle Tissue Functions: Associated with the bones of the skeleton, the heart and in the walls of the hollow organs of the body. Muscle Tissue Functions: ________________ Locomotion _________________ Produces heat Pumps blood ___________________

Nervous Tissue Nervous Tissue: Nervous Tissue Functions: ___________________________, ie., brain, spinal cord & nerves. Nervous Tissue Functions: ___________________________ Supports, insulates and protects impulse generating neurons.

Specific tissue types & representative cell types we will review: epithelial _________ Cuboidal __________ connective Bone ___________ Areolar Blood muscle nervous

Squamous Epithelium Simple – ___________________ Forms solid layer of cells which line blood vessels, body cavities & cover organs in body cavities Stratified – _______________________ Forms epidermis

Cuboidal Epithelium Simple – one cell thick _________________ Cuboid Cells Simple – one cell thick _________________ Duct Line ducts in kidneys, etc, where reabsorption and secretory activities take place. Cuboid Cells Duct

Columnar Epithelium Simple – ____________ Column shaped (long & narrow) Line digestive tract where reabsorption & secretion occurs. Pseudostratified – gives the appearance of more than one layer of columnar epithelial cells ___________-has cilia to help move things

Specific Connective Tissue Types: ___________ Bone ______________ Areolar Reticular

Connective - Adipose Honeycomb or chickenwire appearance ________________ Insulates Supports & protects organs

Connective - Bone Tree ring-like appearance _______________ Mineral storage Fat storage ________________

Connective – Hyaline Cartilage Supports while providing flexibility Absorbs compression between bones in joints (articular cartilage) ___________________________________ Most abundant type of cartilage in body

Connective – Reticular Tissue ____________ Help support lymphoid organs and red bone marrow ____________________________________ Found in kidney, spleen, lymph nodes and bone marrow

Connective – Areolar Tissue _______________ Also found in membranes of blood vessels and nerves ______________________________________________________ Contains reticular fibers

Connective – Blood Tissue Delivers nutrients and oxygen to cells __________________ Made up of blood cells and plasma(fluid)

There are 3 types of muscle tissue:  _________________

Review What You’ve Learned… Muscle Type Striated? # of nuclei Voluntary or Involuntary Skeletal Cardiac Smooth

Specific Nervous Tissue Types Nervous – Neuron Branching cells with many long processes ____________________ Transmit impulses from one area of the body to other areas ______________________________________________________