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BIOS 1300 exam 2 (100% Correct)

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histology correct answers study of tissues and how they are arranged in organs cell junctions correct answers connections between two cells tight junctions correct answers good for tissues that act as barriers desmosome correct answers very strong and help tissues resist stretching gap ...

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  • July 8, 2024
  • 14
  • 2023/2024
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BIOS 1300 exam 2 (100% Correct)
histology correct answers study of tissues and how they are arranged in organs

cell junctions correct answers connections between two cells

tight junctions correct answers good for tissues that act as barriers

desmosome correct answers very strong and help tissues resist stretching

gap junction correct answers fairly weak, but great for allowing cells to communicate quickly

tight junctions correct answers linkage between two adjacent cells by transmembrane cell-
adhesion proteins and makes it difficult for substances to pass

example of a tight junction correct answers blood-brain barrier

hemidesmosomes correct answers half desmosomes that anchor basal cells of an epithelium to
underlying basement membrane

pemphigus vulgaris correct answers Destruction of desmosomes by own antibodies (autoimmune
disorder)

gap junctions are formed by correct answers connexons

where are gap junctions located correct answers located in cardiac and smooth muscle,
embryonic tissue

3 steps in gap junction pathology correct answers defects in protein trafficking/assembly,
mutations in gap junction molecules, improper/unregulated exchange of cellular contents

glands correct answers cell or organ that secrets substances for use elsewhere in the body or
releases them for elimination from the body

secretion correct answers product useful to the body

excretion correct answers waste product

exocrine glands correct answers maintain their contact with surface of epithelium by way of a
duct

external exocrine glands correct answers sweat and tear glands

internal exocrine glands correct answers pancreas and salivary glands

endocrine glands correct answers have no ducts; secret hormones directly into blood

, hormones correct answers chemical messengers that stimulate cells elsewhere in the body

examples of endocrine glands correct answers thyroid, adrenal, pituitary glands

organs that have both endocrine and exocrine functions correct answers liver, pancreas

unicellular glands correct answers found in an epithelium that is predominantly non secretory

capsule correct answers connective tissue covering of exocrine gland

septa or trabeculae correct answers extensions of capsule that divide interior of gland into
compartments (lobes and lobules

stroma correct answers connective tissue framework that supports and organizes glandular tissue

parenchyma correct answers cells that preform the tasks of synthesis and secretion

tubular correct answers narrow secretory portion

acinar correct answers secretory cells form dilated sac

tubuloacinar correct answers both tubular and acinar portions

3 modes of secretion correct answers merocrine, apocrine, holocrine

merocrine secretion correct answers uses vesicles that release secretion by exocytosis

apocrine secretion correct answers lipid droplet covered by membrane and cytoplasm buds from
cell surface

holocrine secretion correct answers cells accumulate a product until they disintegrate

what lines blood vessels and heart correct answers endothelium

what lines body cavities like pericardium, peritoneum, pleura correct answers mesothelium

tissue growth correct answers increasing the number of cells or size of existing cells

hyperplasia correct answers growth through cell multiplication

hypertrophy correct answers enlargement of preexisting cells

examples of hypertrophy correct answers muscle growth through exercise; accumulation of body
fat

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