1 The Integumentary Sysienm Anatomical Models er the following questions using i
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1 The Integumentary Sysienm Anatomical Models er the following questions using information from PAL, 3.0 as well as other course materials inchding your textbook, lecture, and lab notes l Check Your Understanding 7. One of the functions of human skin is to detect the movement of insects. What receptor is activated by crawling insects? 1. A hair has two basic regions. Identify these regions. 8. Describe the characteristics and the functions of sebaceous gland secretions. 2 Meissner's corpuscles are found in which of the two basic layers of the dermis? 3. Identify the five layers of the epidermis in thick skin. 9. Match the structures on the right to the location on the left. There may be more than one answer for each location on the left. However, there is only one correct combination when all the structures on the right are used. hair follicle dermis palm arrector pili a. Sebum b Smooth muscle c Apocrine 4 What type of sweat gland is prominent in thick skin? sweat gland sebaceous gland d. Collagen fibers axilla stratum S. The wall of a hair follicle is composed of two sheaths. Identify these two sheaths sweat gland granulosum 8. Epithelial POD 6. The superficial layers of the epidermis contain root sheath two chemicals that waterproof the skin and protect it from wear and tear. Identify these two chemicals. In which layer of the epidermis are these chemicals made?Explanation / Answer
1.
1.Two regions of hair are
The hair shaft is the visible part of the hair that protrudes through the skin.
The hair root is the part of the hair below the surface of the skin.
2.papillary layer of the dermis.
3.The epidermis of thick skin has five layers: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum.
4. sebaceous glands, or apocrine sweat glands.
5.1.dermal root sheath
2.outer sheath of connective tissue.
6.stratum granulosum.
7.Hair root plexus.
8.Sebaceous glands are microscopic exocrine glands in the skin that secrete an oily or waxy matter, called sebum, to lubricate and waterproof the skin and hair of mammals. ... The type of secretion of the sebaceous glands is referred to as holocrine.Sebaceous glands secrete the oily, waxy substance called sebum made of triglycerides, wax esters, squalene, and metabolites of fat-producing cells. Sebum waterproofs and lubricates the skin and hair of mammals.
9.sebum- sebacious gland.
Smooth musle- arrector pilli.
Apocrine gland - hair follicles.
Collagen fibres - hair follicles.
Exocrine sweat gland- sebacious gland.axilla
Keratohyalin -stratum granulosum.
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