Answer:
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. The pericardial sac has two layers, a serous layer and a fibrous layer. It encloses the pericardial cavity which contains pericardial fluid.
Latin: Pericardium
Location: A sac around the heart
Artery: Pericardiacophrenic artery
Answer:
The progenitor of the platelets is called a megakaryocyte.
Explanation:
Platelets are blood structures, which participate in the process of blood clotting. They are also known as thrombocytes.
The process of platelet formation is called thrombopoiesis, and it consists of
- <em>Formation of megakaryoblasts from the hemocyte, a hematopoietic precursor cell. </em>
- <em>Megakaryoblasts produce </em><em>megakaryocytes</em><em>.
</em>
- <em>Megakaryocytes are precursors to platelet</em><em>s.
</em>
Each megakaryocyte must fragment to form the thrombocytes or platelets.
Answer:
Preeclampsia is an abnormal increase in blood pressure after the 20th week of pregnancy. When a urinalysis is done, what is found that is not present in normal urine Ans. - protein
Answer:
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Answer:
The correct answer is: B, C, D,F, G, H.
Explanation:
Aneuploidy is a defect on the number of chromosomes a cell has. Human cells have 46 chromosomes, an additional chromosome (47) or a missing one (45) is an aneuploidy. Aneuploidy is usually due to a defect during cell division (chromosomes don’t separate). The following disease are examples of aneuploidy:
b. Down's syndrome (trisomy of chromosome 21)
c. Edward's syndrome (trisomy of chromosome 18)
d. Jacob's syndrome (a male with an extra Y chromosome)
f. Turner's syndrome (a female missing a X chromosome)
g. Klinefelter's syndrome (a male with an extra X chromosome)
h. Patau's syndrome (trisomy of chromosome 13)
