Lab 3: Histology & Cell Division
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53 Terms
where can find Simple Squamous Epithelium?
lung alveoli, line blood vessels
what is this tissue
Simple Squamous Epithelium
what is function of the mesothelium in the this tissue?
allows rapid fluid exchange
Where can you find the Simple Cuboidal Epithelial
kidney tubules
what is the function on the Simple cuboidal epithelial tissue
Secretion or absorption
what type of tissue is this?
Simple Columnar epithelium tissue
where is Simple Columnar epithelium tissue found
villi of S.I.
what can we see where all the question marks?
Goblet cell
what do goblet cells do?
mucus-secreting
where can we find Pseudostratified Ciliated Columnar Epithelium(PSCCE) in the body?
lining the respiratory passages
what type of tissue is this?
Pseudostratified Ciliated Columnar Epithelium(PSCCE)
what is tissue this?
Transitional Ep
what type of tissue is this?
Transitional Ep
what type of tissue is this?
Stratified Squamous Epithelium
where is this tissue found?
esophagus or outer region of skin
what type of tissue is this?
Dense Irregular Connective Tissue
where can this tissue be found?
dermis of the skin and sclera (white of the eye)
what type of tissue is this?
Adipose
where can it be found?
surrounds kidneys and heart, behind eyeballs
what does it do for the body?
Provides protection, cushion, and insulation
what the 4 main types of tissues?
Epithelial, Muscle, connective, and nerve
what does all type of tissues sit on?
basement membrane
Mitosis
Cell division in which the chromosome number remains constant.
where does mitosis take place
somatic cells
The cell cycle is a continuous process, and is divided into stages:
Interphase and Mitosis
G0
non-replicating part of interphase
an example of a cell that is in G0
nerve cell
G1
Organelles reproduced, cell increases in size
S
DNA is replicated
G2
Spindles and structures needed for cell division are made.
During Interphase :
no chromosomes are visible in the nucleus
the nuclear membrane is present
Metaphase
Chromosomes (sister chromatids) line up in the center of the cell
Spindle fibers attach to centromeres
Anaphase
Chromosomes separate, and move to the opposite sides of the cell (poles)
Telophase
A cleavage furrow forms
Cytokinesis: the division of cytoplasm
The nuclear membrane reforms around each nucleus
Karyokinesis: division of the nucleus
Cytokinesis
the division of cytoplasm
Karyokinesis
division of the nucleus
Meiosis
Cell division in which the chromosome number is halved
Why does Meiosis happen?
The formation of gametes (sex cells)
What are the two sex cells?
Sperm
Ova
Spermatogenesis
4 viable sperm produced
Oogenesis
1 viable ovum (egg) produced
3 non-functional polar bodies produced
what type of tissue is this?
Testes
What is the specific type of Meiosis required to create this sperm?
Spermatogenesis
How many chromosomes does the sperm cell have
23
What is the specific type of meiosis required to create this oocyte in the Graanfiain Follicle
Oogenesis
How many chromosomes does the Oogenesis make
23
what is this?
Sperm
what type of tissue is this?
egg/ ova
What phase is this?
Interphase
What phase is this?
Prophase
What phase is this?
metaphase
What phase is this?
anaphase
What phase is this?
Telophase