Exercise 6 Review sheet tissue

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Orthopedic surgeons are fond of saying, "It is better to break a bone than it is to tear a tendon or ligament." Why is this true?

Broken bones heal faster and with less scar tissue because they are more vascularized than tendons or ligaments.

most widespread tissue in the body

Connective

Explain why a buccal swab procedure should not cause bleeding.

Epithelium is avascular. Removing a few cells from the apical layer of the epithelium will not damage any blood vessels.

Smoking impairs cilia because the toxins paralyze and can destroy the cilia. Based on this loss of function, explain which types of infections smokers would be more susceptible to.

Lung infections

anchors, packages, and supports body organs

connective

consists of cells within an extracellular matrix

connective

derived from mesenchyme

connective

classified based on the shape and arrqangement of the cells

epithelial

forms endocrine and exocrine glands

epithelial

lines body cavities and covers the body's external surface

epithelial

major function is to contract

muscle

pumps blood, flushes urine out of the body, allows one to swing a bat

muscle

forms nerves and the brain

nervous

transmits electrical signals (to other cells)

nervous

When cardiac muscle tissue dies in adults, it is replaced with scar tissue composed of dense connective tissue. Explain how scar tissue would affect the function of the cardiac muscle tissue.

The scar tissue cannot contract so the heart will be weaker.


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