Lesson 6 EYK

Lesson 6 EYK

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Multiple Choice

“The human body can function with only 80% of its organs and systems functioning at one time” Support or refute this statement.

• The systems of the human body are

  interconnected. They all rely on one another.

  if only 80% are functioning properly, the body

  cannot survive.

• The systems of the body are individual. If one or more are not working the other systems will pick up the slack to keep the body alive.

Multiple Choice

A sea star can regenerate a lost limb, but a rabbit cannot. Which of these two organisms has the more complex body?

• The sea star is more complex. It takes a very complex structure and physiology to be able to regenerate a lost limb. Simple organisms do not have this ability.

• The rabbit is more complex. More complex

  organisms cannot regenerate parts the same as

  less complex organisms because the more

  complex organisms have bones, muscles, nerves,

  veins, and arteries working together in their limbs.

  Certain tissues may regenerate, like bone and

  skin, but the whole limb is far too complex.

Multiple Choice

Protective layer of skin composed of hardened cells that are constantly shed and renewed. Provides a barrier between the inside of the body and the outside.

• Dermis

• Epidermis

• Epithelial

• Bone

Multiple Choice

Deeper layer of skin tissue that contains blood vessels and other specialized cells and tissues that your skin uses to do its jobs.

• Dermis

• Epidermis

• Epithelial

• Bone

Multiple Select

Choose the 4 stages of your body’s response to a break in the dermis layer of skin.

• Hemostasis

• Repair

• Proliferative

• Remodeling

• Inflammation

Multiple Choice

The first stage in your body’s response to a break in the dermis, it is your body trying to stabilize blood loss.

• Hemostasis

• Inflammation

• Proliferative

• Remodeling

Multiple Choice

A protein that is sent to the wounded area to form cross-links on the skin and clot the blood.

• Fibroblasts

• Helicase

• Fibrin

• Pectin

Multiple Choice

A tightening of the blood vessels to lessen the amount of blood that can flow through the wounded area.

• Vasodilation

• Vasoconstriction

• Clotting

• Anti-circulation

Multiple Choice

What is the function of white blood cells during the inflammation stage?

• To assist the body in clotting the wounded area to prevent blood loss.

• To help the blood vessels slow down the flow of blood to the wounded area

• To assist the blood vessels in helping deliver more blood to the wounded area.

• To devour any germ cells that might have entered your body.

Multiple Choice

A widening of the blood vessels to facilitate the movement of white blood cells to the affected area.

• Vasodilation

• Vasoconstriction

• Anti-clotting

• Circulation

Multiple Choice

Specialized cells that produce a special protein that begins to connect the ends of the torn skin tissue together.

• Fibrin

• Fibroblasts

• Osteoblasts

• Bone Marrow

Multiple Choice

Stage in which skin cells make new skin cells to repair the damaged area.

• Hemostasis

• Inflammation

• Proliferative

• Remodeling

Multiple Choice

The process that cells go through to make new cells from old cells.

• Life Cycle

• Cell Cycle

• Meiosis

• DNA Replication

Multiple Choice

After completing the injury response, will the skin always go back to the way it was before injury?

• The body is able to regenerate and heal wounds and replace the damaged area with skin cells that are identical to the skin cells they replace.

• If a wound is serious enough, the skin may never reach its same strength or appearance.

  Scars are an example.

Multiple Choice

When an injury occurs, do the surviving cells grow larger to cover the damaged area?

• No, the cells do not grow larger. Rather new cells are produced through the cell cycle to help repair the damaged area.

• Yes, the remaining skin cells will grow larger to cover and repair the wounded area.

Multiple Choice

An athlete suffers a serious injury and is paralyzed from the waist down, what does this tell you about the limitations of the body?

• Some injuries are so serious that the body cannot recover. Some cells and structures do not have the ability to regenerate and repair.

  Spinal injuries are

  always difficult and often impossible to recover from.

• Nothing

Multiple Select

What two things happen during the inflammation stage of injury response?

• Vasoconstriction

• Vasodilation

• Fibrin is produced

• Clotting Begins

• White blood cells devour germs

Multiple Choice

During which stage of injury response is fibrin produced by the fibroblasts?

• Hemostasis

• Inflammation

• Proliferative

• Remodeling