Essentials of Anatomy and Physiology

83 Mucous Membranes Parietal Pleura Visceral Pleura Mesentery Peritoneum Figure 4–8. Epithelial membranes. Mucous membranes line ...

The mucussecreted by these membranes keeps the lining epithelial cells wet. Remember that these are living cells, and if they dr ...

rounded and flatten when stretched. Site: urinary bladder (to permit expansion without tearing the lining). Simple cuboidal—one ...

Specialized cells in nerve tissue are neuroglia in the CNS and Schwann cells in the PNS. Sites: brain; spinal cord; and periphe ...

A friend suffers a knee injury involving damage to bone, cartilage, and ligaments. What can you tell your friend about the heal ...

88 CHAPTER 5 Chapter Outline The Skin Epidermis Stratum germinativum Stratum corneum Langerhans cells Melanocytes Dermis Hair fo ...

CHAPTER 5 The Integumentary System 89 New Terminology Arterioles (ar-TEER-ee-ohls) Ceruminous gland/Cerumen (suh-ROO-mi-nus GLAN ...

The integumentary system consists of the skin, its accessory structures such as hair and sweat glands, and the subcutaneous tiss ...

blisters and severe itching. The importance of the stratum corneum becomes especially apparent when it is lost (see Box 5–1: Bur ...

92 Stratum corneum Langerhans cell Mitosis Capillary Stratum germinativum Sensory neuron Dermis Melanocyte Merkel cell Figure 5– ...

The Integumentary System 93 BOX5–1 BURNS (Continued) Normal skin First-degree burn Second-degree burn Third-degree burn Box Figu ...

Melanocytes produce another protein, a pigment called melanin. People of the same size have approxi- mately the same number of m ...

DERMIS The dermisis made of an irregular type of fibrous connective tissue, irregular meaning that the fibers are not parallel, ...

or arrector pili muscle. When stimulated by cold or emotions such as fear, these muscles pull the hair fol- licles upright. For ...

within hair follicles and create small infections. Because sebaceous glands are more numerous around the nose and mouth, these a ...

However, if excess cerumen accumulates in the ear canal, it may become impacted against the eardrum. This might diminish the acu ...

SUBCUTANEOUS TISSUE The subcutaneous tissuemay also be called the superficial fascia, one of the connective tissue mem- branes. ...

100 The Integumentary System Table 5–3 SUBCUTANEOUS TISSUE Part Function Areolar connective tissue Adipose tissue Connects skin ...

AGING AND THE INTEGUMENTARY SYSTEM The effects of age on the integumentary system are often quite visible. Both layers of skin b ...

Apocrine sweat glands—modified scent glands in axillae and genital area; activated by stress and emotions. Eccrine sweat glands ...