Microanatomy I Word Scramble
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Question | Answer |
mitochondria | are self replicating |
some cells components that can be identified using the light microscopy | nucleolus, cilia, lipid globules |
human cells are: | eukariotic |
all body tissues are derived from cells | true |
cell membrane is composed of: | bilayer of phospholipids and proteins |
endoplasmic reticulum | may be associated with ribosomes |
In an active cell, the nucleolus | appears dense and intensely stained |
Meiosis | results in the formation of three polar bodies and one ovum |
Apoptosis | part of normal fetal development |
Embrionic tissue layers | endoderm, mesoderm, ectoderm |
process of diferentiation involves | cells becoming more specialized in fuction |
Mesothelial cells are found: | lining the pleural cavity |
endothelial cells are found: | lining capillaries |
Ingestion of foreign bodies | is not a fuction of ephitelial cells |
Cadherin | protein involved and found in cell membranes and associated with cell junctions |
Basal lamina | structure that separates ephitelial membranes from underlying structures |
cilia | contain actin filaments attached to cytoskeleton |
simple squamous ephitelium | presents minimal resistance to passage of nutrients |
columnar ephitelial cells | are involves in adsoption, may be ciliated, may have a brush border |
Goblet cells | contain mucopolyssaccharides/glycoprotein complexes |
pseudostratified ephitelium | is found lining the respiratory tract |
stratified squamous ephitelium | may be found covering the external os of the uterine cervix |
urinary bladder | lined by transitional epithelium |
diffuse endocrine system | contain cells referred as APUD cells |
functions of supporting and connective tissue include | storage of nutrients, providing a medium for diffusion of nutrients, connection of body parts and organs |
fibrillar proteins include | collagen,elastin, fibrillin |
the parent cell of supporting tissue is | mesenchymal cell |
endothelial cell | is not a supporting cell |
describe an active fibroblast | spindle shaped, diffuse chromatin, large nucleolus, basophilic cytoplasm |
myofibroblast | produce type III collagen and reticulin |
brown fat is commonly found | in embrionic tissues |
plasma cells | produce immunoglobulins |
fenestrations | small perforations in elastic tissues |
oxytalan and elaunin are | immature forms of elastin fibres |
loose connective tissue | often contain macrophages and mast cells |
dense regular connective tissue | found in tendons and ligaments |
elastic fibres | appear yellow in unstained sections |
adipocytes | have a flattened peripheral nucleous |
Mesenchymal tissues | contain large amounts of amorphous ground substance |
ground substance in umbilical cord is known as | Wharton's jelly |
fibrocartilage | contains large amount of collagen |
lamellar bone | prduced by osteoblasts |
in bone, osteoblast appear as | cuboideal cells with large nucleous and basopjilic cytoplasm |
skeletal muscle | referred sometimes as voluntary muscle |
terms "fast twitch" and slow twitch" refer to | skeletal muscle fibres |
smooth muscle | controlled by autonomic nervous system |
sarcomere | portion of myofibril between adjacent Z bands |
skeletal musclecells may be classified as | red and white fibres |
sarcoplasm | contains smooth endoplasmic reticulum and mitochondria |
muscle tissue | may sustain a state of semicontraction for long periods |
in cross section through a cardiac muscle cell | nucleous will be centrally located |
myoephitelial cells | found associated with glands and ducts |
Created by:
dduque
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