Name: _______________________________________________ Date: _________________ Period: ________ PHYSIO | Tissue Review Directions: Use your available resources to complete the review •
Tissues are classified into 4 basic types based on •
Structure & function •
4 basic types: - Epithelial - Connective - Muscle - Nervous •
General Features Connective Tissue •
Most abundant tissue type •
Often good blood supply - Except for cartilage, which is avascular •
Has a nerve supply - Except for cartilage •
Found between other tissues •
Classified using matrix characteristics (determines a tissues qualities) - Can be fluid, semi fluid, gelatinous, fibrous, or calcified •
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Connective tissue cells vary with tissue type Loose Connective Tissue •
Adipose Tissue - Made of adipocytes (cells) •
Specialized for storage of triglycerides - Location •
Found in the subcutaneous layer deep to the skin •
Around the heart and kidneys •
Yellow bone marrow of long bones - Function •
Reduces heat loss through skin •
Energy storage •
Supports and protects •
Dense Connective Tissue •
Dense Regular Connective Tissue - Made of collagen fibers produced by fibroblasts - Location •
Forms tendons and ligaments - Function •
Attachment between muscle and bone •
Cartilage •
Hyaline Cartilage (most abundant type of cartilage, but also the weakest) - Made of fine collagen fibers & mature cells called chondrocytes - Location •
Found around the ends of long bones and anterior end of ribs •
Nose (sensory organ) •
Embryonic and fetal skeleton - Function •
Provides a smooth surface for movement at joints •
Support and flexibility •
Fibrocartilage (the strongest type of cartilage) - Made of bundles of collagen fibers & mature cells called chondrocytes - Location •
Found between the intervertebral discs •
Pubic symphysis and menisci of knees - Function •
Provides support and rigidity •
Blood Tissue •
Blood - Made up of and their functions •
Plasma Pale yellow fluid made of mostly water. Allows for substances to dissolve/be transferred. •
Red Blood Cells Transport O2 to cells, remove CO2 •
White Blood Cells Involved in immune system response •
Platelets Help with blood clotting - Location •
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Within blood vessels Bone Tissue (osseous tissue) •
Compact Bone - Made of •
Different connective tissues (interesting fact, bone is an organ because of this) •
Osteon (The basic unit of compact bone) •
Osteocytes (mature bone cells) - Location •
Found in bones (I wonder what it could be???) - Function •
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Supports and protects soft tissues •
Generates/enables movement •
Stores red bone marrow (produces red blood cells) •
Spongy bone contains yellow bone marrow (stores triglycerides) Muscle Tissue •
Skeletal Muscle - Made of •
Long, cylindrical, & striated fibers - Location •
Attached to bone - Function •
Voluntary (type of) motion •
Motion, posture, and heat production •
Cardiac Muscle - Made of •
Branched striated fibers - Location •
Heart wall - Function •
Involuntary (type of) motion •
Pumps blood to the body •
Smooth Muscle - Made of •
Tapered nonstriated fibers - Location •
Walls of blood vessels •
Stomach and intestines (organs that helps to digest food) •
Urinary bladder (holds urine) - Function •
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Involuntary (type of) motion Nervous Tissue •
Nervous Tissue - Made of •
Neurons (4 parts) - Dendrites - Cell body - Axon - Axon terminal •
Neuroglia (noo‐ROG‐le‐a): Do not generate nerve impulses/support neurons. - Location •
Nervous System - Function •
Converts stimuli into nerve impulses •
Receives and conducts nerve impulses to other neurons, muscles, glands