anatomy 1 practical Flashcards
divides body into front and back
frontal
divides body into left and right
saggital
divides body into upper and lower
transverse
top side squares
hypochondriac
low side squares
inguinal
middle side squares
lumbar
middle top square
epigastric
middle bottom square
hypogastric
middle middle square
umbilical
what is the longest phase of mitosis?
interphase
what are the 3 parts of interphase?
G1, S, G2
what happens in the cell cycle?
cell divides into 2 identical daughter cells
what happens during G1?
cell growth
new organelles are being made
what happens during S?
DNA replication - makes a copy
what happens during G2?
organelles and molecules needed for cell division are made
mitosis definition
cell nucleus divides
cytokinesis
what is cytokinesis
cytoplasm divides to form two separate daughter cells
4 phases of mitosis
prophase
metaphase
anaphase
telophase
what happens during prophase?
- chromatin condenses to form visible chromosomes
- nuclear envelope disappears
- spindle forms
- nucleolus disappears
metaphase
chromosomes align on metaphase plate
anaphase
chromosomes split
daughter chromosomes move to poles
cytokinesis begins
telophase
chromosomes reach poles
nuclear envelope reforms
chromosomes unwind to chromatin
cytokinesis divides the cytoplasm
nucleolus reappears
explain the dialysis demonstration (exam will probably say what is going on?
- osmosis
- inside turns blue
- the barrier represents the semipermeable membrane
agar plate (plate with 2 dots)
- MOLECULAR weight determines how much a substance diffuses
- diffusion: high to low