Question

description of variations in skin tone

complete the sentences describing skin tones and the influence of blood and blood flow on the color of skin.

1. if someone has a low blood oxygen content, their blood is described as (click to select).
2. this individual will have a (click to select) tint to their skin and this condition is called (click to select).
3. if an individual has an (click to select) rate of blood flow to the skin, such as during intense emotion (such as embarrassment) or alcohol consumption, their skin takes on a (click to select) tint.
4. when someone is cold, the blood flow to the skin is (click to select). as a result, this person will have a (click to select) skin tone.

Explanation:

Analyze blood oxygenation

Using the Integumentary System knowledge point.
Low blood oxygen content means hemoglobin is not fully bound to oxygen. This state is described as deoxygenated.

Determine skin color changes from low oxygen

Using the Skin Pigmentation knowledge point.
Deoxygenated blood has a dark red/purple color. Through the skin, this appears as a bluish tint, a clinical condition known as cyanosis.

Analyze increased blood flow

Using the Integumentary System knowledge point.
Embarrassment or alcohol consumption causes vasodilation, which is an increased rate of blood flow to the skin, resulting in a red/flushed skin tone.

Analyze decreased blood flow from cold

Using the Integumentary System knowledge point.
Cold temperatures trigger vasoconstriction, which is a decreased blood flow to the skin to conserve core heat, resulting in a pale skin tone.

Answer:

Question 1

If someone has a low blood oxygen content, their blood is described as <blank>deoxygenated</blank>.

Question 2

This individual will have a <blank>bluish</blank> tint to their skin and mucous membranes, and this is called <blank>cyanosis</blank>.

Question 3

If an individual has an <blank>increased</blank> rate of blood flow to the skin due to strong emotion (such as embarrassment) or alcohol consumption, their skin takes on a <blank>reddish</blank> tint.

Question 4

When someone is cold, the blood flow to the skin is <blank>decreased</blank>. As a result, this person will have a <blank>pale</blank> skin tone.