Answer:
Precapillary sphincters increase the flow of blood through a tissue when they relax.
<em>a)True</em>
Explanation:
Precapillary sphincters are rings of smooth muscle bands that surround the capillary opening. These structures help regulate blood flow and blood pressure. They respond to the body's needs and receive nerve and hormonal signals to relax or contract in consequence.
Answer:
But while a stethoscope and other at-home devices make this possible, hearing the faint sound of a baby's heartbeat isn't always possible. One of the best ways to hear the heartbeat is during a prenatal appointment when your OB-GYN uses an ultrasound or fetal Doppler
Answer:
If your quality of sleep is being disturbed. And when you start to have a rash... then I would see a doctor.
Explanation: