question

Columnar cells lining the small intestine show a brush border of microvilli on the apical surface

answer

True

question

Nonkeratinized cells exfoliate from the surface of the skin

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False- they provide a moist and slippery surface and are well suited to resist stress. Ex- vagina

question

In an epithelium, there is almost no extracellular matrix

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True

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The 4 primary tissue types found in adult organs are:

answer

Connective Nervous Epithelial Muscular

question

___ lines body cavities, covers the body surface, and forms the lining of many organs

answer

Epithelial tissue

question

An epithelium with all cells tall and narrow and with every cell touching the basement membrane is called _____

answer

Simple columnar

question

The basement membrane is found between

answer

Epithelium and connective tissue

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____ epithelium allows for rapid diffusion of oxygen and carbon dioxide through the air sacs (alveoli) of the lungs

answer

Simple squamous

question

Most kidney tubules are made of this tissue specialized for absorption and secretion

answer

Simple cuboidal epithelium

question

__ is the most widespread epithelium in the body, whereas __ epithelium is rare

answer

Stratified squamous; stratified columnar

question

__ cells in simple columnar and pseudostratified columnar epithelium produce protective mucous coatings over the mucous membranes

answer

Goblet

question

All cells in this tissue reach the basement membrane and only cells that reach the free surface have cilia

answer

Pseudostratified columnar

question

__ epithelium found in the bladder resembles __ epithelium, but the apical cells are rounded, not flattened

answer

Transitional; stratified squamous

question

___ epithelium provides a moist and slippery surface and is well suited to resist stress, as in the __

answer

Nonkeratinized; vagina

question

__ epithelium is associated with rapid transport of substances through a membrane, whereas __ epithelium is associated with resistance to abrasion

answer

Simple squamous; stratified squamous

question

These features are common to all connective tissue

answer

•Most cells are not in direct contact with each other •Cells usually occupy less space then extracellular material •Protein fibers are usually present in ground substance •most of them are highly vascular

question

__ tissue is highly vascular, whereas __ is not

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Areolar; cartilage

question

Fibrous connective tissues have these features in common

answer

•Very conspicuous fibers •The presence of fibroblasts •The presence of collagen •Ground substance with a gelatinous to rubbery consistency

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The shape of a person's external ear is given by

answer

Elastic cartilage

question

Types of fibrous connective tissue

answer

•Reticular tissue •Dense regular connective tissue •Dense irregular connective tissue •Areolar tissue

question

New triglycerides are constantly synthesized and stored and others are hydrolyzed and released into circulation mostly cells in

answer

Adipose tissue

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__ secrete the rubbery matrix of cartilage, whereas __ produce the fibers and ground substance that form the matrix of fibrous connective tissue

answer

Chondroblasts; fibroblasts

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All these substances account for the gelatinous consistency of connective tissue ground substance

answer

-Glycosaminoglycans (GAGs) -Proteoglycans -Chondroitin sulfate -Hyaluronic acid

question

Collagenous fibers are very abundant in

answer

-Tendons -Ligaments -Deeper portion of the skin

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Fibroblasts and protein fibers are associated with both

answer

-Dense regular and dense irregular connective tissues

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__ is found in the heart, and one of it's functions is to __

answer

Blood; transport nutrients to the tissues

question

___ exhibits a lot of apparently empty space, and is found in many serous membranes

answer

Areolar tissue

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Skeletal muscle is described as

answer

Striated(lined) and voluntary

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In the intestine, __ ensure that most digested nutrients pass through the epithelial cells and not between them

answer

Tight junctions

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__ secrete __ into __

answer

Endocrine glands; hormones; the blood

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__ glands secrete mucin, which combines with water to form a thick and sticky product, whereas __ glands produce a relatively watery fluid

answer

Mucous; serous

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__ glands (such as tear glands) have vesicles that release their secretion by exocytosis, whereas __ glands (such as oil-producing glands) secrete a mixture of disintegrated cells and their products

answer

Merocrine; holocrine

question

This membrane lines passageways that open to the exterior environment

answer

Mucous membrane

question

Macrophages __ in the healing of a skin wound

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Phagocytize and digest tissue debris

question

Epithelial tissue

answer

-Functions in absorption -Epithelial cells can be cube or column shaped -Epithelial cells do NOT secrete a ground substance -epithelial cells are typically arranged in layers

question

Epithelial tissue is composed of cells and matrix

answer

False - composed of cells

question

Epithelium that consists of more then one layer of cells is called

answer

Stratified

question

Functions of simple columnar epithelium

answer

-Absorption -Secretion of mucous -Movement of egg through uterine tube -Movement of embryo through uterine tube

question

Filtration is a function of simple columnar epithelium

answer

FALSE

question

Reticular connective tissue

answer

-Provides support framework for the spleen -found in the bone marrow

question

Areolar tissue

answer

-forms the basement membrane of epithelia -Found in tissues that hold muscles together -Forms the serous membrane of the lungs

question

Adipose tissue

answer

-Stores energy -Found immediately deep to the skin

question

Hyaline Cartilage

answer

-Lines the surfaces of movable joints -Provides a low friction surface -Holds open passages so we can breathe

question

Elastic Cartilage

answer

-Forms the pinna(external part) of the ear -Allows structures to stretch and return to original shape

question

Fibrocartilage

answer

-Found in the intervertebral discs -Absorbs compressive forces in the spine

question

Bone

answer

-Site of mineral storage -The matrix is hydroxyapatite -Provides a cavity for the brain

question

Dense Regular CT

answer

-Main tissue found in structure that help muscles attach to bones -Resists tensile forces from one direction

question

Dense Irregular CT

answer

-Found in the deeper layer of the skin -Resists tensile forces from several directions

question

Functions of epithelial tissue

answer

-Protection -Absorption -Secretion -Sensation -Excretion

question

Where is non-keratinized stratified squamous epithelium is found?

answer

-Esophagus -Vagina

question

Simple squamous epithelium allows for rapid diffusion

answer

True

question

The microvilli on simple columnar epithelium helps to maximize absorption

answer

True

question

Transitional epithelium of the urinary bladder can change shape to accommodate bladder wall stretching

answer

True

question

Functions of connective tissue

answer

-Hormone transport -Energy storage -Protecting the vital organs -Forming the structural framework of the liver -Supporting the internal frame of the body

question

Components of the matrix of connective tissue

answer

-Collagen Fibers -Proteoglycans -Ground Substance

question

Cells found in connective tissue

answer

-leukocyte -red blood cell -chondrocyte

question

Functions associated with the excitability of cells

answer

-The ability to make a cell shorter then it's length -The ability of one cell to transmit electric signals to another cell -The ability to create movement of a bone relative of to another bone

question

Skeletal Muscle

answer

-Voluntary -Moves the skeleton -Multi nucleated

question

Cardiac Muscle

answer

-Contracts without nervous innervation -Connected by intercalated discs

question

Smooth Muscle

answer

-Mostly found in the viscera -Helps propel contents through a tubular organ

question

Desmosomes

answer

-Contributes to the cytoskeleton -Prevents cells from being pulled apart -Hook-like J-shaped proteins connect to one another -The hemi-version prevents cells from being pulled from basement membrane

question

Gap Junctions

answer

-Allow passage of ions from one cell to another -Allow electrical stimulation to pass from cell to cell -Comprised of connexons

question

Tight Junctions

answer

-Forms a water resistant seal between cells -Make sure intestinal substances pass through the epithelial cells, not between them

question

Endocrine

answer

-Secretes hormones -Releases products into the blood steam Example- the gland that secretes cortisol

question

Exocrine

answer

-Secretes enzymes -Releases products into a duct or onto a surface -Goblet cells -Contains septa, dividing the gland into lobes -Sweat glands

question

The clear gel that usually surrounds cells is called interstitial fluid

answer

True

question

Smooth and cardiac muscles are under involuntary control

answer

True

question

The duct of an endocrine gland leads into the bloodstream rather then an epithelial surface

answer

False

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