Anatomy and Physiology
9th Edition
ISBN: 9781260256000
Author: SALADIN
Publisher: MCG
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Textbook Question
Chapter 6.2, Problem 2AYLO
Three kinds of hair, including fetal and adult types
INTRODUCTION:
Hair is a slender filament grows from hair follicle made up of keratinized cells.
EXPLANATION:
There are three kinds of hair including fetal type and adult type. They are
1. Lanugo
2. Vellus
3. Terminal hair
Lanugo:
They are fine, downy, unpigmented hair which appears on the fetus in the last 3 months of fetal development. After birth, most of the lanugo is replaced by vellus hair.
Vellus:
The vellus hair is the fine, pale hair which replaces lanugo by the time of birth. It presents except on eyebrows, eye lashes and hair of the scalp. It is seen two third in women, one tenth of men and all over in children.
Terminal hair:
These are the longer, coarser and more pigmented type of hair. These type of hair forms eyebrows, eyelashes and scalp. It is also seen in axilla and pubis after puberty.
CONCLUTION:
Hairs are seen in everywhere in the body except palms and sole. The density and pigmentation differs in male and female.
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Chapter 6 Solutions
Anatomy and Physiology
Ch. 6.1 - Prob. 1BYGOCh. 6.1 - Prob. 2BYGOCh. 6.1 - Prob. 3BYGOCh. 6.1 - Prob. 4BYGOCh. 6.1 - Prob. 5BYGOCh. 6.1 - Prob. 6BYGOCh. 6.1 - The name of the branch of medicine that deals with...Ch. 6.1 - Prob. 2AYLOCh. 6.1 - Prob. 3AYLOCh. 6.1 - Prob. 4AYLO
Ch. 6.1 - Prob. 5AYLOCh. 6.1 - Prob. 6AYLOCh. 6.1 - Prob. 7AYLOCh. 6.1 - Prob. 8AYLOCh. 6.1 - Prob. 9AYLOCh. 6.1 - Prob. 10AYLOCh. 6.1 - Prob. 11AYLOCh. 6.1 - Prob. 12AYLOCh. 6.1 - Prob. 13AYLOCh. 6.1 - Prob. 14AYLOCh. 6.2 - Prob. 7BYGOCh. 6.2 - Prob. 8BYGOCh. 6.2 - Prob. 9BYGOCh. 6.2 - Prob. 10BYGOCh. 6.2 - Prob. 11BYGOCh. 6.2 - Prob. 1AYLOCh. 6.2 - Three kinds of hair, including fetal and adult...Ch. 6.2 - Prob. 3AYLOCh. 6.2 - Prob. 4AYLOCh. 6.2 - Prob. 5AYLOCh. 6.2 - Prob. 6AYLOCh. 6.2 - Prob. 7AYLOCh. 6.2 - Alopecia pattern baldness, and hirsutism...Ch. 6.2 - Prob. 9AYLOCh. 6.2 - The anatomy of fingernails and toenails; location...Ch. 6.3 - Prob. 12BYGOCh. 6.3 - Prob. 13BYGOCh. 6.3 - Prob. 14BYGOCh. 6.3 - Prob. 1AYLOCh. 6.3 - Prob. 2AYLOCh. 6.3 - Prob. 3AYLOCh. 6.3 - Prob. 4AYLOCh. 6.4 - Prob. 15BYGOCh. 6.4 - Prob. 16BYGOCh. 6.4 - Prob. 17BYGOCh. 6.4 - Prob. 18BYGOCh. 6.4 - Prob. 1AYLOCh. 6.4 - Prob. 2AYLOCh. 6 - Cells of the ________ are keratinized and dead. a....Ch. 6 - Prob. 2TYRCh. 6 - Which of the following skin conditions or...Ch. 6 - Prob. 4TYRCh. 6 - The hair on a 6-year-olds arms is a. vellus hair....Ch. 6 - Which of the following terms is least related to...Ch. 6 - Prob. 7TYRCh. 6 - Prob. 8TYRCh. 6 - Which of the following glands produce the acid...Ch. 6 - Prob. 10TYRCh. 6 - Prob. 11TYRCh. 6 - A muscle that causes a hair to stand on end is...Ch. 6 - Prob. 13TYRCh. 6 - Blueness of the skin due to low oxygen...Ch. 6 - Prob. 15TYRCh. 6 - Prob. 16TYRCh. 6 - Prob. 17TYRCh. 6 - Prob. 18TYRCh. 6 - Prob. 19TYRCh. 6 - Prob. 20TYRCh. 6 - Prob. 1BYMVCh. 6 - Prob. 2BYMVCh. 6 - Prob. 3BYMVCh. 6 - Prob. 4BYMVCh. 6 - Prob. 5BYMVCh. 6 - Prob. 6BYMVCh. 6 - Prob. 7BYMVCh. 6 - Prob. 8BYMVCh. 6 - Prob. 9BYMVCh. 6 - Prob. 10BYMVCh. 6 - Prob. 1WWTSCh. 6 - Prob. 2WWTSCh. 6 - Prob. 3WWTSCh. 6 - Vitamin D synthesis begins in certain cutaneous...Ch. 6 - Prob. 5WWTSCh. 6 - Prob. 6WWTSCh. 6 - Prob. 7WWTSCh. 6 - Prob. 8WWTSCh. 6 - Prob. 9WWTSCh. 6 - Merocrine and apocrine sweat glands are present...Ch. 6 - 1. Many organs of the body contain numerous...Ch. 6 - Prob. 2TYCCh. 6 - Prob. 3TYCCh. 6 - Prob. 4TYCCh. 6 - Why is it important for the epidermis to be...
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