basophilic
babies
babies
how do mitochondria and ribosomes stain with H&B staining?
mitochondria= acidophilic (pink/red)
ribosomes= basophilic (blue/purple)
define simple epithelia and name the 4 types of simple epithelia
bonus: draw me a picture of one kind of simple epithelium.
single layer of cells resting on a basal lamina. (all the cells in simple tissue touch the basal lamina!)
simple squamous, simple cuboidal, simple columnar, pseudostratified
Most common type of neuron
interneurons; connect completely within CNS
basophilic cell with euchromatic nucleus that PRODUCES bone matrix and cannot divide.
bonus: name the mature form of this bone cell
osteoblasts
bonus: osteocytes
what color does reed blood cell cytoplasm stain?
basophililc/blue
describe an "artifact" and give an example of an expected artifact in staining.
artifact= artificial change in the cell tissue during staining
expected= "empty" adipose cell, loss of most water soluble molecules in washing process
present only in the male reproductive system, long microvilli clumped together
stereocilia
describe the structure and function of a neuron
cell body (star shaped) with dendrites attached, axon comes out of the cell body and extends to the terminal which sends out signals.
tell me about appositional growth! how does it work?
osteoblasts build from the outside while osteoclasts eat from the inside to grow bone.
draw me an eosinophilic band
should be a red circle, with darker purple nucleus in like a u-ish shape
the process of dividing cells within a cell that is not increasing in size... after which the blastocyst implants on day....
cleavage... day 6!
explain difference between simple and compound glands
compound glands have more than one duct, and many branches. simple can also have branches but only has one duct.
contents of the axon (what organelles lacking)
how myelinated in CNS/PNS
DO NOT contain ribosomes, RER, or golgi
myelinated by schwann cells in the PNS and oligodendrocytes in the CNS
describe purkinje fibers
larger than regular cardio muscle fibers with lots of glycogen, help coordinate, electric channels using gap junctions
when RNA in the cell nucleus and hemoglobin entering the cell combine
describe what happens to the trophoblast during the second week (week of twos)
bonus: name the two cavities in the embryo formed during the week of 2s
cytotrophoblast (old trophoblast layer) assists in replicating itself to form synctiotrophoblast, which buries itself into the uterine lilning in search of nutrients for the embryo and also secretes HCG to assist in keeping the ovary sustained
bonus: the amniotic sac and the yolk sac
defective type 1 collagen disease
bonus points; lack what vitamin?
scurvy
bonus: vitamin C
dorsal versus ventral roots
dorsal root= sensory info exiting cord
ventral root= only motor info exiting cord
distinguish straited versus not striated muscle types
SMOOTH IS NOT STRIATED
skeletal muscle and cardiac muscle both have striations :)
how is smooth muscle arranged in the thickest layer of large veins
tunica adventitia, smooth muscle is longitudinally arranged
name the three germ layers, AND give one example of tissue that comes from each one, AND give an example of a germ layer birth defect.
bonus: what is the time period where an embryo is most susceptible to teratogens?
ectoderm: epidermis, neural tube, head bones
mesoderm: CT, cartilage, bone, muscle, limbs, blood, lymphatics, GU system
endoderm: GI tract, respiratory system, lower GU
valid examples: teratoma, caudal dysgenesis, situs inversus, anencephaly, spina bifida
bonus: week 3-8
large amoeba like cell with particulate debris in cytoplasm after eating
mast cell
where the myelin sheath of one schwann cell ends and another begins
nodes of ranvier
most common form of dwarfism that affects bones that are formed by endochondral ossifications
bonus: how does this disorder impact the skull?
achondroplasia
bonus: head develops normally
where is the discontinuous/sinusoidal capillary located?
bone marrow