2. Cellular Division and Physiology Flashcards
Phase when cells stop dividing (examples)
- G0 phase
- Cardiac cells
- Neurons
3 phases of interphase
G1
S
G2
Phase: chromosome duplication
Synthesis phase
Division of Somatic cells
Mitosis
Division of Sex cells
Meiosis
Chromatin condenses
Prophase
Align at the equator
Metaphase
Chromosomes split
Anaphase
Chromatid goes back to chromatin.
Cleavage furrow forms
Telophase
Steps 1-4 or PMAT is also called ____
Karyokinesis
Part of mitosis where cytokinesis happens
Telophase
Cytoplasm divides into two
Cytokinesis
What 2 things happen in Meiosis1 prophase1
Synapsis
Recombination
Phenomenon wherein homologous chromosome pair during meiosis
Synapsis
Sharing of DNA of 2 homologous chromosome aka “crossing over” or chiastmata formation
Recombination
End product of Meiosis1
Sperm: 2 diploid
Egg: 1 diploid and 1 polar body
End product of Meiosis 2
Sperm: 4 haploid
Egg: 1 happloid and 3 polar bodies
Only blood supply of the heart
L and R Coronary artery
Decreased blood supply
Ischemia
Loss of blood supply due to obstruction
Infarction
Common cause of infarction
Obstruction of smaller vessels
Other term for Myocardial Infarction
Heart attack
Common cause of death of Myocardial Infarction
Arrythmia (irreg heart beat)
Most common organ assoc. with infarction
Heart
Brain infarction
Cerebrovascular Accident / Stroke
Least involved organ in infarction
Liver
Most common artery involved in stroke
Lenticulostriate artery (branch of middle cerebral artery)
Initial response of heart to hemorrhage
Tachycardia - increase in function to help brain
Total body fluid volume
60% of weight
2 types of blood fluid volume and %
Intracellular fluid: 40%
Extracellular fluid: 20%
Blood volume = ___% of body weight
8%
If blood volume (8%) not maintained it will result to loss of blood flow or _____
Hypovolemic shock or Hemorrhagic shock
Longest phase of cell division
Interphase
Male with barr body
Klinefelter syndrome