A piece of foam with an open cell structure is introduced into the wound and a wound drain is placed with lateral perforations on top. The entire area is covered with a transparent adhesive membrane, which is firmly fixed to healthy skin around the wound margin. When the exposed end of the drain tube is connected to a vacuum source, fluid is withdrawn from the wound through the foam into a reservoir for later disposal.It is necessary to cover the wound bed with a soft polyvinyl alcohol foam sponge, a non-stick oil-emulsion dressing (for exame, Johnson and Johnson), a contact layer (such as Mepitel), a thin layer of amorphous hydrogel (can be Intrasite Gel), or a calcium alginate (such as Sorbsan) before application of the gray sponge. Avoid the use of Vaseline, which is too oily and can alter the adhesion of the VAC cloth.
Answer:
<h2>B</h2>
Explanation:
During synaptic transmission, the neurotransmitters are released from the pre-synaptic membrane and are released in the gap between pre and post synaptic membrane. These neurotransmitters are bind with receptors in the post-synaptic membrane and are absorbed and they change the membrane potential in post synaptic cell.
Answer:
The second pair of grandparents have approximately 12 to 19 boys as grandchildren.
Explanation:
The probability of a grandchild being a girl or a boy is same, i.e., 
.
The first pair of grandparents have 4 grandchildren.
The second pair of grandparents have 32 grandchildren.
If first pair of grandparents have between 40% to 60% boys as grandchildren then the number of boys are in the limit,
Thus, the first pair of grandparents have approximately 2 to 3 boys as grandchildren.
If second pair of grandparents have between 40% to 60% boys as grandchildren then the number of boys are in the limit,
Thus, the second pair of grandparents have approximately 12 to 19 boys as grandchildren.
So, it is clear that the second pair of grandparents are more likely to have between 40% and 60% boys as grandchildren.
Also according to the law of large numbers as the sample size increases the probability of an event gets closer to the theoretical probability.
Answer:
D) Two polysaccharides undergo a reaction to form a monosaccharide.
Explanation:
I took Biology last year.
Answer:
True
Explanation:
The ADH is related to the liquid pressure indide the body, it controls the pressure of it in order to mantain a perfect body homeostasis. In consequence, everytime there is a blood osmolarity change, a blood pressure change in the heart or large vessels it is secretated because these parts of the organisms contain most of the liquids of the body.
