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A&P
Integumentary system pt 2
| Question | Answer |
|---|---|
| The spiny appearance of the stratum spinosum cells is primarily due to the tenacious nature of _____, which function to hold these non-dividing cells together | desmosomes |
| Apocrine and merocrine sweat glands release their secretory products by the process of | exocytosis |
| When ____ binds oxygen, it exhibits a bright red color, giving blood vessels in the dermis a reddish tint that is most easily observed in the skin of lightly pigmented individuals | hemoglobin |
| The main structural components of the reticular layer is primarily a network of ____ fibers that extend internally from the reticular layer of the dermis into the underlying subcutaneous layer | collagen |
| Skin repair and regeneration usually takes about ____ weeks in a healthy young person but can often take _____ that time for a person in his or her 70s | 3, twice |
| Sebaceous glands are classified as ____ glands that discharge on oily, waxy secretion called ____ | holocrine/sebum |
| The secretion produced by apocrine sweat glands is viscous, cloudy and composed of ____ and ____ that are acted upon by bacteria, producing a distinct, noticable odor | proteins/lipids |
| A nevus is commonly referred to as a ____. It is harmless, localized growth of ____ forming cells | mole, melanin |
| A sebaceous glands ducts plugged with sebum | comedo |
| Dome-shaped lesions filled with a mixture of white blood cells, dead skin cells, and bacteria | pustule |
| Can be prone to scarring | nodule |
| A fluid filled nodule that can become severely inflamed and painful, and can lead to scarring | cyst |
| The dermis of the skin has an extensive innervation, which refers to the | distribution of nerve fibers |
| There are three main variations in the epidermis. These variations are _____, colorations, and skin markings | thickness |
| The nails, hair and exocrine glands of the skin are known as _____ | epidermal appendages |
| Apocrine sweat glands are classified as ____ glands (3) | simple, coiled, tubular |
| Normal skin color results from a combination of colors of ____, melanin and carotene | hemoglobin |
| Nerve fibers in the skin monitor sensory receptors in the ____ and _____ | dermis and epidermis |
| The most numerous cells of the epidermis are ______, and the protein they produce is called _____ | keratinocytes, keratin |
| The predominant type of protein fiber found in the dermis is ____ | collagen |
| Skin is classified as either thick or thin based on two parameters: the number of epidermal ____ in the epidermis and the relative _____ of the epidermis, rather than the thickness of the entire integument | layers, thickness |
| Tactile cells are described by | can be stimulated by light pressure can be stimulated by light touch also called Merkel cells Large epithelial cells |
| The ____ layer of the dermis consists primarily of the dense irregular connective tissue with large bundles of collagen fibers | reticular |
| During our lives, we produce three kinds of hair | Vellus, lanugo, terminal |
| Layer of cells covering the developing embryonic epithelium | periderm |
| waterproof protective covering composed of sebum and sloughed off cells | vernix caseosa |
| layer of embryonic cells that develops into the dermis | mesenchyme |
Created by:
lindseylew