Answer:
caused by a genetic defect on chromosome 4. The defect causes a part of DNA to occur many more times than it is supposed to. This defect is called a CAG repeat
Explanation:
Answer:
c. cerebrospinal fluid
Explanation:
Cerebrospinal fluid
This fluid is a colorless , clear body fluid , that is present in the brain and the spinal cord .
Some specialized ependymal cells produces this fluid .
Around 125 mL of Cerebrospinal fluid is produced at one time , and around 500mL is produced daily .
The Cerebrospinal fluid is nearly 99% water which means it contain highest volume of fluid .
Answer:
The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each chamber of the heart. ... They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.
Explanation:
Answer:
d. cell membranes
Explanation:
The movement of the the fluid is a combination of both the osmotic and the hydrostatic pressures.
Osmotic pressure results from the differences in the solute concentrations across the cell membranes. On the other hand, hydrostatic pressure results from pressure of the blood as it enters the capillary system, forcing some amount of the fluid out of vessel into surrounding tissues.
<u>As a result of these factors, the fluid movement occurs through cell membrane.</u>
