Integumentary System

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Pearson version of the integumentary system Chapter 5
updated 8 years ago by mayenne1979
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1

Tissue located in the kidney glomeruli, air sacs of the lungs, lining of the heart, blood vessels, and lymphatic vessels, lining of ventral body cavity (serosae)

Simple Squamous Epithelium

2

Located in kidney tubules, ducts and secretory portion of small glands, ovary surface

Simple cuboidal epithelium

3

Located in non ciliated type lines most of the digestive tract (Stomach & Rectum) , Gallbladder, and excretory ducts of some glands, ciliated variety lines small bronchi, uterine tubes, and some regions of the uterus

Simple columnar Epithelium

4

Located in the non ciliated type in male's sperm carrying ducts and ducts of large glands, cliliated variety lines the trachea, most of the upper respiratory tract

Pseudostratified columnar epithelium

5

Located in the non keratinized type forms the moist linings of the esophagus, mouth and vagina, keratinizied forms of the epidermis of the skin and dry membrane

stratified squamous epithelium

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Lines the ureters, bladder and part of the urethra

transitional epithelium

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Unicellular exocrine gland, produces mucin and mucin forms mucus. It is a cup like accumulation of mucin distends the top of the cel, making the cellslook like a glass with a stem.

Goblet Cells

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Tiny, hair like projections on cell surface that move in wave like manner

Cilia

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Connective tissue

Fibroblast

10

Erythrocytes, carries oxygen and nutrients, fluid tissue

Red blood cells

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Leukocytes, neutrophils, eosinophils and other cell types that are concerned with tissue response to injury

White Blood cells

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Clotting,

Platelets

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Mature cell of a cartilage

Chondrocyte

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Mature bone cells

Osteocytes

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a formation of dense regular connective tissues which are cords that attach muscles to the bones

tendons

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flat sheet like tendons that attach muscles to other muscles or to bones

aponeroses

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bind bones together with the joints

ligaments

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system of interconnecting canals in the microscopic structure of adult compact bone: unit of bone: also called osteons

Haversian Canal

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extremely small tubular passage or channel

canaliculi

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Description:Long, cylindrical, multi-nucleated cells, obvious striation
Location: Skeletal muscles attached to the bones or occasionally skin
Function: MovementL voluntary control

Skeletal muscle tissues

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Description: Branching, striated, uninucleate cells that meet at special junctions (intercalated disc)
Location: The walls of the heart
Function: it contracts, propels blood into circulation, involuntary

Cardiac muscles

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Description: Spindle-shaped cells with central nuclei, no striations, cells arranged closely to form sheath
Location: mostly in the wall of hallow organs (stomach)
Function: propels substance or objects along internal passageway (food, urine, baby), involuntary

Smooth muscles

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Description: Neurons are branching cells, cells processes that may be quite long extend from the nucleus containing cell body, contributing to nervous tissue are non excitable supporting cells
Location: Brain, spinal cord and nerves

Nervous tissue

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is 1st major skin region that is a keratinized stratified squamous epithelium

epidermis

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is second major skin region that is strong, flexible connective tissue

Dermis

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part of the dermis that is thing superficial made up of areolar connective tissue in which fine interlacing collagen and elastic fibers form loosely woven mat that is heavily invested with blood vessels. It patrols the area for bacteria that have breached the skin. Has papillae, projections which extends into epidermis. Friction ridges for finger prints

papillary layer

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accounts for 80% of the thickness of the dermis and is irregularly arranged by dense fibrous connective tissue. many collagenous fibers. where suede leather comes from

reticular layer

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Pressure ulcers usually occur in the skin overlying bony projections such as hip, heel, elbow or shoulder

decubitus ulcer

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Are responsible for the sense of deep pressure and vibration located deep in the reticular layer

pacinian (lamellated) corpuscle

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are responsible for the sense of light touch located in the dermal papillae. numerous in the nipples, external genitalia, fingertips and the soles of the feet

Meissner (tactile) corpuscle

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deficiency of vitaimn d may lead to deformity of bonesm

rickets

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young actively mitotic cell that forms the fibers of connective tissue. gel like ground substance

fibroblast

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White fibers, extremely tough and tensile strength

Collagen

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Elastic fibers, allows it to stretch and recoil

elastin

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tissue which is found in tendons and ligaments. tissue is composed of large amounts of closely packed collagenous fibers.

Fibrous connective tissue

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star shaped cells that arise from bone marrow and migrate to the epidermis. also called langerhans cell- ingest foreign substance. key activators of the immune system

dendritic cells

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Markel cells function as a sensory receptor for touch

tactile cells

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smooth muscle cells associated with hair follicles

arrector pili

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each hair develops from epidermal cells at the base of a tube like depression called _________

hair follicle

40

sebaceous gland produce and oil secretion called

sebum

41

_______responds to emotional stress, have odors and considered scent glands. Most numerous in the armpits and groin. Also become active when a person is sexually stimulated

apocrine sweat gland

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responds to elevated body temperature due to environmental heat or physical exercise. common on forehead, neck, back, where they produce profuse sweating on hot days and during physical exertion

eccrine sweat gland

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Cells found just above the basement membrane which undergo rapid cell divisions. Also called the stratum basale. Basal cell carcinoma originates here.

Stratum Germinativum

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is a middle portion of the epidermis several cells thick. The name derives from the appearance of these cells after they are fixed and processed for sectioning. The cells shrink but remain attached to each other by desmosomes giving the cells a "spiny appearance".

Stratum Spinosum

45

is a layer just above the spinosum in which large amounts of keratohyalin is being synthesized. Granules of this basophilic protein can be seen in stained sections.

Stratum granusolum