Vertebrate Body Structure. Vertebrate Body Vertebrate Tissue Types.
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Transcript of Vertebrate Body Structure. Vertebrate Body Vertebrate Tissue Types.
Vertebrate Body Structure
Vertebrate Body
Vertebrate Tissue Types
Levels of Body Organization
Epithelial Tissue
• Covers internal and external structures
• Purpose– Protection– Secretion– Gas exchange
• Basement membrane and connective tissue support epithelial tissue
Epithelial Tissue - Simple
Epithelial Tissue - Stratified
Connective Tissue
• Very diverse functions– Support Cartilage, bone, dense,
loose– Energy storage Adipose– Gas exchange Red blood cells– Immune system White blood cells
Connective Tissue (1)
Connective Tissue (2)
Bone Structure
White and Red Blood Cells
Muscle Tissue
• Smooth– Controls diameter of tubes (blood vessels and
digestive system)– Involuntary
• Striated– Skeletal – attaches to bone– Cardiac – heart muscle
Striated Muscle Tissue• Contain contractile unit
composed of actin and myosin protein
• Cells bundled together to form muscle fibers
• Densely packed actin/myosin fibers gives striated appearance
• Multinucleated cells – syncytial
Muscle Fiber
Muscle Tissue
Nerve Tissue
• Neurons – functional unit of the nervous system
• Glial Cells – support cells
Nerve Tissue