Sinoatrial node

-Your heart beat works from the electrical impulses that travel down pathways through your heart. The normal sinus rhythm is initiated by the SA node also known as the sinoatrial node. It is also known as the hearts natural pacemaker due to the fact it beat 100 bpm. The electrical activity then spreads through the wall of the atria and as a result causes them to contract before it reaches the AV node. From there the AV node conducts electrical impulses from the atria to the ventricles while slowing down the electrical signal. As a result this five the atria time to contact before the ventricles do while allowing the heart to pump blood from out of its chambers. 2. Label one cardiac cycle identifying the: P wave, QRS complex, and T wave. Explain…

My day started off with meeting the two individuals I would be spending most of my day with which was Kat and Will who were both paramedics. Kat took me to the ambulance and showed me the things we would need in each case that we would go to and no matter what the case was the two things they would need is the medicine bag and the stretcher. Then we went through the ambulance and she showed me where most of the equipment was and the medications. As she was showing them to me she was checking…

An 85 year old male experienced muscle damage in the lower part of the heart because of blocked blood flow. As this happened he fell unconscious because the extra electrical pathways of his heart's chambers stimulated, causing a rapid abnormal heart rate and an insufficient blood supply to the brain. After placing sensors on his body to monitor his heart's electrical activity the healthcare provider established that the front of his heart experienced a blockage in the past. Both events were…

Once the P wave initiates the signal, the R wave is the first upward deflection after that. Anyone can easily recognize it on the electrocardiogram (ECG). That is because it is the largest one out of all the waveforms. The R wave corresponds to the depolarization of the left and right ventricles. It does not need the Q wave to be the first deflection at all. Also, note that there can be multiple R waves. Throughout the paper, it will discuss all the wave functions, specifically the R wave, any…

When I was in third grade my grandfather was diagnosed with stage four carcinoid cancer. Stage four essentially means that it has reached the body 's lymph nodes and thus it can infect nearly any part of the body. While this diagnosis was bad, it never hit me how bad it was until sophomore year when he appeared to have suffered from a stroke. We got lucky however and it was Bell 's Palsy, and while that was definitely better than a stroke it was still worrisome, this was the first time I…

common type of breast cancer and it is the most diagnosed type of breast cancer [Invasive Ductal Carcinoma (IDC)1]. Invasive means that the cancer has “invaded” or spread to the surrounding breast tissues [IDC — Invasive Ductal Carcinoma 1]. Ductal means that the cancer began in the milk ducts, which are the “pipes” that carry milk from the milk-producing lobules to the nipple [IDC — Invasive Ductal Carcinoma 2]. IDC has the potential to invade your lymph and blood systems which causes spreading…

Breast Cancer is thought to be a single disease, but actually it is a number of diseases that affect the cells, our bodies basic units of life. Humans bodies are made of many cells, grouped into 200 different types that combine to form the tissues of our body, such as skin, muscle, bone, and our breast needs them as well (The Mayo Clinic,18). This process happens because of the specific genetic programs and instructions of a cell. As the cell grows it will take its appointed place among the…

It only has a single, one-way communication link. An example of its use is in the pressure measuring systems. The advancement in technology lead to the need of more efficient topologies. The developers started making cost-effective protocols for these designs. For example a Star topology finds its use in easily scaling the number of lights in a room or a router in a house can use the Mesh topology to overcome shadowing and ensure uniform signal strength throughout the house. The major area of…

System Description The current system is a relatively simple business system which employs generic office applications. However, the employees of Quadco LLC do heavily rely on the reliability of their system. Therefore they require a fairly robust system to continue supporting oil field services and operations. The current issue with this type of system is that users tend to store critical documents on their workstations which are prone to mechanical failures resulting in loss of data.…

every such tool community node has typically many components: a radio transceiver with accomplice degree inner accomplice degreetenna or association to an outside antenna, a microcontroller, associate diploma digital circuit for interfacing with the sensors and an energy deliver, normally a battery or accomplice degree embedded kind of electricity gather. A sensor node may also range in length from that of a shoebox all the way down to the dimensions of a grain of dust, even though functioning…