epithelial cells form epithelial tissue structure: – epithelial cells pack tightly together and...
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Epithelial Cells form Epithelial Tissue
• Structure:– Epithelial Cells pack tightly together and form
continuous sheets that line different parts of the body.• Function:– Protection, secretion, absorption, and transport
• Examples: – Inside the mouth (cheek cells) – Line organs like the stomach– Surround the outside of organs– Make the outer layer of skin
MUSCLE TISSUE• Structure:– Muscle cells make specialized tissue that can contract. – Muscle tissue contains the specialized proteins actin
and myosin that slide past one another.• Function:– Allows for movement of limbs and contraction.
• Examples: – Heart – Cardiac Muscle– Body Movement—Skeletal Muscle– Digestive Tract, Veins/Arteries, Bladder—Smooth
Muscle
NERVE TISSUE• Structure:– Elongated cells with many branches.
• Function:– Has the ability to generate and conduct electrical
signals in the body. – These signals are managed by the brain and
transmitted down the spinal cord to the body.
White Blood Cell
• Structure:– Large, flexible cells– Covered in proteins that recognize invaders.
• Function:– Part of your immune system.– Fight off bacteria and other invaders.
• Examples:– Neutrophils – engulf bacteria– Basophil – Release histamine to promote and
inflammatory response.
Red Blood Cell
• Structure:– Round, disc-shaped cell– Concave center
• Function:– Transport oxygen
throughout the body.
Plant Leaf vs. Plant Stem• Leaf– Contains Guard Cells that open and close to allow
for gas exchange– Lined with Chloroplasts
• Stem– Contain Xylem and Phloem that carry food and
water up the stem of the plant.
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