Answer:
If severe bleeding from an arm or leg cannot be controlled with direct pressure, bleeding should be controlled by using
<h3>
a tourniquet </h3>
by using the tourniquet, pressure is being applied to the skin and underlying tissues, this pressure is transferred to the vessel wall causing a temporary occlusion.
(the Tourniquet is a tool)
Answer:
I do not understand this question. Explain it further in the comment section and I will try my best to help you. :]
Explanation:
A bloodborne pathogen training class might include Human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV) they are the most common bloodborne pathogens from which health care workers are at risk
Answer:
1. E) During muscle contraction all of the answers above are correct.
2. A) Myosin pulls actin filaments toward the M disk.
Explanation:
The mechanism of muscle contraction is also known as the sliding filament theory. It explains the activities which occur during contraction of muscles.
Muscles are made up of functional units called sarcomeres and these sarcomeres made up of myofibrils which are long and thin strands of protein. Myofibrils contain thin filaments called actin and thick filaments called myosin. Interactions between the thin and thick filaments results in contraction.
The I band contains thin filaments. The H band is the area of no thin filaments. The M line is the midline of the thick filaments. The Z line is the boundary between adjacent sarcomeres and the A band is the area of thick filaments.
Contraction occurs when muscle fibres are activated by neurons through the release of calcium ion. On stimulation, the H and I band get smaller, the zone of overlap gets larger and the Z lines move closer together and the A band remains constant. This the thin filaments slide towards the center resulting in the shortening of the sarcomeres and the muscle fibres as a whole.
Answer:
The correct answer will be- fourteenth day of ovarian cycle.
Explanation:
The secondary oocyte is the cellular stage of the reproductive cells which can be easily distinguished as the cells are present at the metaphase-II of the cell division.
The secondary oocytes are gets matured in the pre-ovulatory phase after which they are released from the follicle on the fourteenth day of the cycle. This fourteenth-day phase is known as the ovulatory phase.
Thus, the fourteenth day of the ovarian cycle is the correct answer.
