The Integumentary System

Which of the following are among the functions of the integumentary system?

Select all that apply.

• I. Contains sensory receptors that detect changes in the environment

• II. Contributes to the production of some vitamins

• III. Helps in body temperature regulation

Tags

NGSS.HS-LS1-3

Based on the graph below, which substance has the highest heat capacity and most likely represents water?

• A

• B

• C

• D

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS3-4

Which of the following is produced from the skin in a hot day?

• Antidiuretic hormone

• Hydrolytic enzyme

• Sugar

• Sweat

Which of the following is a type of vitamin that skin contributes to its production?

• Vitamin A

• Vitamin B

• Vitamin C

• Vitamin D

Which of the following is/are among the water properties that contributes to its role in the moderation of the body temperature?

• I. It binds to carbon dioxide to form carbonic acid which lowers energy production in the body

• II. Its temperature changes quickly when it absorbs little amount of heat

• III. The surface it evaporates from will get cooler

• I and II only

• I and III only

Tags

NGSS.HS-LS1-3

Which of the following is NOT a type of sensory receptor that found in the skin?

• Light

• Pain

• Pressure

• Temperature

Tags

NGSS.MS-LS1-8

Below are steps that are involved in the regulation of the body temperature. Which of the following is the correct sequence of the steps?

1. Brain detects the increase in body temperature

2. Sweat is produced from sweat glands

3. Body temperature increases

4. Body temperature is back to the normal set point

• 1 →2 →3 →4

• 1 →2 →4 →3

• 3 →2 →4 →1

• 3 →1 →2 →4

Tags

NGSS.HS-LS1-3

.The graph below shows how the mean skin temperature changes with the amount of sweat released during exercise. Explain how the properties of water contribute to the results shown by the graph.

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Answer explanation

Because of the hydrogen bonding property of water, it has high specific heat. It absorbs a large amount of heat to break down hydrogen bonds and evaporate from the skin surface. Absorbing heat lowers the temperature of the skin.

Tags

NGSS.HS-LS1-3

NGSS.HS-PS3-4

Explain how the integumentary system contributes to the regulation of body temperature when a person is waiting for the bus in a cold day

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Answer explanation

When a person gets cold, the muscle cells in the dermis contract /shivering, and this helps to keep the body warm. Also, vasoconstriction take place keeping more blood deep in the skin and reducing heat loss from the body.

Tags

NGSS.HS-LS1-3

Explain how the integumentary system contributes to the regulation of body temperature when a person is working outside in direct sunlight.

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Answer explanation

When a person is in warm or hot conditions, the sweat glands in the skin produce sweat, that get evaporated, and it gives a cooling effect. Also, vasodilation take place taking more blood towards skin and releasing heat out of the body.

Tags

NGSS.HS-LS1-3