Human Skin Anatomy Overview
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Questions and Answers

What is the primary function of nail follicles?

  • To produce sebum (correct)
  • To detect pressure and heat
  • To cool the body through sweating
  • To protect the ends of fingers and toes (correct)

Which type of gland produces cerumen?

  • Ceruminous glands (correct)
  • Eccrine sweat glands
  • Apocrine sweat glands
  • Sebaceous glands

What role do arterioles play in the body's temperature regulation?

  • They generate keratin for skin protection
  • They produce sweat to cool the skin
  • They filter bacteria from the blood
  • They dilate in warmth and constrict in cold (correct)

What do eccrine sweat glands primarily produce?

<p>Watery sweat (B)</p> Signup and view all the answers

What is the main function of skin receptors?

<p>To detect changes in the environment (D)</p> Signup and view all the answers

Which pigment is primarily responsible for determining skin color?

<p>Melanin (C)</p> Signup and view all the answers

What is the primary function of eyelashes?

<p>Keep dust out of eyes (B)</p> Signup and view all the answers

What role does mitosis play in hair follicles?

<p>Produces keratin in new cells (A)</p> Signup and view all the answers

Which of the following statements about hair follicles is true?

<p>Hair follicles surround the hair root. (D)</p> Signup and view all the answers

Which pigment is found in the skin and helps with oxygen transport?

<p>Oxyhemoglobin (A)</p> Signup and view all the answers

Flashcards

Melanin

A pigment that gives skin its color, ranging from light to dark.

Nail

A type of skin that protects the ends of fingers and toes, allowing for gripping small objects and efficient scratching. It's made of dead, keratinized cells and grows from the nail root.

Carotene

A pigment found in carrots and other orange foods, giving skin a yellowish hue.

Nail Root

Located at the base of the nail, where new nail cells are produced through mitosis.

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Oxyhemoglobin

The bright red pigment found in red blood cells, responsible for the pink color of skin.

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Sebaceous glands

Glands in the skin that produce sebum, an oily substance that prevents drying of skin and hair, and inhibits bacterial growth.

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Ceruminous glands

Glands located in the ear canal that produce cerumen, a waxy substance that protects the eardrum from drying out.

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Hair follicle

A hair-producing structure located within the skin.

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Hair shaft

The visible part of hair extending above the skin.

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Arterioles

Blood vessels that dilate in response to warmth, increasing heat loss, and constrict in response to cold, conserving body heat. They also constrict in stressful situations, diverting blood to vital organs.

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Study Notes

Nail Follicles

  • Located at the ends of fingers and toes
  • Mitosis takes place in the nail root
  • The nail itself is dead, keratinized cells
  • Protect the ends of fingers and toes
  • Enable fingers to pick up objects
  • Provide for efficient scratching

Sebaceous Glands

  • Produce sebum, preventing skin and hair drying, and inhibiting bacterial growth
  • Located in the skin

Ceruminous Glands

  • Produce cerumen, preventing the eardrum from drying
  • Located in the skin

Eccrine Sweat Glands

  • Produce watery sweat that evaporates, cooling the body
  • Located in the skin

Arterioles

  • Dilate in response to warmth, increasing heat loss
  • Constrict in response to cold, conserving body heat
  • Constrict in stressful situations, shunting blood to vital organs

Receptors

  • Detect changes in touch, pressure, heat, cold, and pain
  • Provide information about the external environment
  • Initiate appropriate responses
  • Sensitivity of the skin depends on the receptors

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Description

Explore the fascinating components of human skin, including nail follicles, sebaceous glands, and sweat glands. Learn about the functions of arterioles and receptors in maintaining body temperature and sensory perception. This quiz provides a comprehensive look at skin structure and its vital roles.

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