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Chapter 4 Epithelial Tissue

front 1 True or False Epithelial Tissue is also called an Epithelium, or plural Epithelia.	back 1 True
front 2 Epithelial tissue is a sheet of cells that _________ a body surface, or __________ a body cavity.	back 2 Covers... Lines
front 3 The 2 forms of epithelial tissue that occur in the human body are...?	back 3 Covering and Lining Epithelium and Glandular Epithelium
front 4 The Covering and lining epithelium does NOT do which of the following: A. Forms the outer layer of the skin B. Dips into, and lines, the open cavities of the urogenital, digestive, and respiratory systems. C. Covers the walls and organs of the closed ventral body cavity. D. Fashions the glands of the body.	back 4 D

front 5 Which form fashions the glands of the body?	back 5 Glandular
front 6 ___________ form boundaries between different environments.	back 6 Epithelia
front 7 True or False Nearly all substances received by the body must pass through an epithelium.	back 7 True
front 8 What are the 6 primary functions epithelium accomplishes?	back 8 1. Protection 2. Absorption 3. Filtration 4. Excretion 5. Secretion 6. Sensory Reception

front 9 What are the 5 distinguishing characteristics of epithelium?	back 9 1. Polarity 2. Specialized Contacts 3. Supported by connective tissues 4. Avascular but intervated 5. Regeneration
front 10 -Polarity- True or False All epithelia have an apical surface and a basal surface.	back 10 True
front 11 -Polarity- Match the term with the descriptions. 1. Apical Surface 2. Basal Surface A. Upper B. Lower C. Attached D. Free Surface E. Exposed to body exterior or body cavity	back 11 1. A, D , E 2. B, C
front 12 -Polarity- True or False Epithelia exhibit apical-basal polarity	back 12 True

front 13 Finger-like extensions of the plasma membrane are called __________. It increases the cells surface area. -Polarity-	back 13 Microvilli
front 14 Some Microvilli are so dense that the cells have a "fuzzy" appearance called a ___________.	back 14 Brush Border
front 15 ________ are tiny hairlike projections that propel substances along their free surface (apical surface.) -Polarity-	back 15 Cilia
front 16 The ____________ is a thin, supporting, adhesive sheet, adjacent to the basal surface. -Polarity-	back 16 Basal lamina

front 17 What determines which molecules are allowed to enter the epithelium? -Polarity-	back 17 The basal lamina
front 18 What is the scaffolding that epithelial cells can use to migrate to repair a wound? -Polarity-	back 18 The basal lamina
front 19 -Specialized Contacts- Lateral contacts, including _______________ and __________, bind adjacent cells together at many points.	back 19 Tight Junctions... Desmosomes
front 20 -Specialized Contacts- The Tight Junctions help keep proteins in the __________ region from diffusing into the __________ region. This maintains the polarity.	back 20 Apical... Basal

front 21 -Supported by connective tissues- Just under the basal lamina is the _______________.	back 21 reticular lamina
front 22 Basal Lamina + Reticular Lamina = _________________	back 22 Basement Membrane
front 23 What reinforces the epithelial sheet, helps resist stretching and tearing, and defines the epithelial boundary.	back 23 Basement Membrane
front 24 True or False Cancerous cells cannot penetrate the basement membrane, which protects important tissues underneath.	back 24 False Cancerous Cells do not respect the basement membrane and they do penetrate the tissues underneath.

front 25 What does Avascular mean?	back 25 Contains no blood vessels
front 26 If something is supplied by nerve fibers, it is _________.	back 26 innervated.
front 27 How do epithelial cells get nourished?	back 27 By substances diffusing from blood vessels into the connective tissue underneath.
front 28 True or False Epithelium has a low regeneration capacity	back 28 False It has a high regeneration capacity.

front 29 Why is it important that Epithelium can regenerate rapidly?	back 29 They are exposed to the harsh surface and vulnerable to injury.
front 30 Each epithelia has 2 names. The first name indicates the number of _____________, the second describes the _________ of the cell.	back 30 cell layers shape
front 31 Based on the number of cell layers, there are __________ and ____________ epithelia.	back 31 Simple and Stratified
front 32 Simple has ________ cell layer. Stratified has ______________ cell layers.	back 32 one 2 or more

front 33 Based on the shape, there are 3, which are ____________, ____________, and ____________ cells.	back 33 Squamous Cuboidal Columnar
front 34 Match. 1. Flattened 2. Boxlike 3. Tall and column shaped A. Columnar B. Squamous C. Cuboidal	back 34 1. B 2. C 3. A
front 35 The shape of the ___________ conforms to the shape of the cell	back 35 nucleus.
front 36 True or False Simple epithelia are good at absorption, secretion, and filtration. But are no good at protection	back 36 True

front 37 2 simple squamous epithelia in the body have special names that reflect their location, they are...	back 37 1. Endothelium 2. Mesothelium
front 38 The inner covering is the ____________. The middle covering is the ____________.	back 38 Endothelium Mesothelium
front 39 What is the Epithelium that gives the impression of being multi-layered.	back 39 Pseudostratified columnar epithelium
front 40 What epithelium forms the external part of the skin, and extends into body openings continuous with the skin.	back 40 Stratified Squamous

front 41 The epidermis is ____________, meaning its surface cells contains __________, a tough protective protein.	back 41 Keratinized... Keratin
front 42 __________ epithelium has the ability to stretch and change shape. Like in the bladder, it stretches to hold more urine.	back 42 Transitional
front 43 __________ consist of one or more cells that make and secrete a particular product.	back 43 Glands
front 44 The water-based fluid produced from the glands are called ____________.	back 44 Secretions

front 45 True or False The term "secretion" can refer to both the gland's product, and the process of making and releasing the product.	back 45 True
front 46 Glands are classified by these 2 traits:	back 46 1. where they release their product. 2. cell number
front 47 endocrine = secreting __________ exocrine = secreting __________	back 47 inside (internally) Outside (externally)
front 48 unicellular = __________ cell. Multicellular = ____________ cells.	back 48 one many (2 or more)

front 49 Endocrine glands eventually lose their ducts, so they are called ____________ glands	back 49 ductless
front 50 Endocrine glands produce ___________, or messenger chemicals.	back 50 hormones
front 51 Exocrine glands secrete onto the body's __________, or into body ____________.	back 51 Surface Cavities
front 52 mucous cells and goblet cells are _____________, or single celled.	back 52 unicellular

front 53 All unicellular exocrine glands produce __________.	back 53 Mucin
front 54 True or False Mucin is a lipid that does not dissolve in water when secreted.	back 54 False Mucin is a glycoprotein that does dissolve in water.
front 55 A __________ cell looks like a glass with a stem, because mucin accumulates and distends the top of the cell.	back 55 Goblet
front 56 Multicellular exocrine glands have 2 basic parts, a ______ and a ______.	back 56 duct... secretory unit

front 57 What surrounds the secretory unit and supplies it with blood vessels and nerve fibers?	back 57 Supportive connective tissue
front 58 A __________ capsule extends into the multicellular exocrine gland and divides it into ________.	back 58 fibrous... lobes
front 59 How do you classify multicellular exocrine glands? A. ______________ B. ______________	back 59 A. Structure B. Types of secretions
front 60 Based on their duct structure, mulitcellular exocrine glands can either be SIMPLE with an __________ duct, or COMPLEX with a ________ duct.	back 60 unbranched branched

front 61 based on their secretory units, you would classify the multicellular exocrine glands 3 ways... 1. 2. 3.	back 61 Tubular alveolar tubuloalveolar
front 62 if the secretory cells form tubes they are _______?	back 62 tubular
front 63 if small flask-like cells are formed, the are ________?	back 63 alveolar
front 64 if both are formed, they are called _____________?	back 64 tubuloalveolar

front 65 __________ is another term for alveolar, it means berry-like.	back 65 acinar
front 66 Multicellular exocrine glands secrete in different ways, so they function as __________, __________, or __________ glands.	back 66 merocrine holocrine apocrine
front 67 __________ secrete as its being produced. __________ holds on to the secretion until it explodes.	back 67 merocrine holocrine
front 68 multicellular exocrine glands are classified according to duct type (__________ or __________) and by the structure of their secretory units (__________, __________, or __________)	back 68 simple... compound tubular... alveolar... tubuloalveolar)