Cardiac arrest

The heart is able to do this thanks to the specialized cardiac muscle it contains. The contraction of the heart displays excitatory- contraction coupling (EC coupling) similar to skeletal muscles except the action potential in the heart originates spontaneously at the peace maker of the heart (Silverthorn, 2013)

Tendons are densely packed fibrous connective tissue. They are responsible for the transmission of mechanical forces from skeletal muscle to the bone; act as joint stabilizers and “shock absorbers” to reduce muscle damage. Tendons are able to resist tensile forces due to the organization of their matrix. They are composed of approximately 70% of water and 30% of dry matter including collagen and a non-collagenous matrix. The predominant collagen present within the tendon is type I collagen, nevertheless

Human anatomy is the scientific study of the human body that consists of several interacting systems. According to Wiki, “Anatomy has become a key part of the visual arts.” The skeletal system is one of the most drawn systems of human anatomy. The skeletal system is the framework of the human body that provides support, protection, and flexibility. Hillendale Health says, “Without your skeleton your body would collapse into a heap.” I chose the skeletal system because without it we would not be able

Introduction The choice of right versus wrong is instilled throughout childhood. However, there are some situations where you have to choose between the two because both choices have their advantages and disadvantages. This is an ethical dilemma. An ethical dilemma involves morals that clash between each other, and some involve the legal aspect of the choices (Grohar- Murray). Everyone faces some sort of ethical dilemma. There are some professions that have to battle ethical dilemmas every day.

The heart has distinguished components that allow the pathway of electrical conduction to travel through the heart in order to effectively pump blood through the body. The electrical impulse initiates in the Sinoatrial node (SA node), which is located in the posterior wall of the right atrium, near the superior vena cava. It is also known as being the physiologic pacemaker of the heart and has an intrinsic firing rate of 60-100 impulses/min. From the SA node, the electrical impulse flows directly

The heart is the most important cardiac muscle in the body. The heart is located right under the rib cage, right between your lungs and to the left of the breast bone. The heart is made up of four chambers, there are two upper chambers called atria, and two lower chambers called ventricles. The right side of your heart receives oxygen poor blood and the left side of your heart receives oxygen rich blood. Your blood flows through your heart and lungs in four different stages, each stage is beneficial

Kolcaba middle-range comfort theory was presented in the early 1990s, and it included three technical senses of comfort; relief, ease, and transcendence (Kolcaba, 2003). The nurse needs to identify the specific discomfort and the support required. After a nurse has identified and provided comfort interventions, the patient will move through the three technical senses. Kolcaba coined the patient’s comfort needs are met as the relief phase. She describes the next stage as ease and is reach once the

Q1 Muscle contraction can be understood as the consequence of a process of transmission of action potentials from one neuron to another. A chemical called acetylcholine is the neurotransmitter released from the presynaptic neuron. As the postsynaptic cells on the muscle cell membrane receive the acetylcholine, the channels for the cations sodium and potassium are opened. These cations produce a net depolarization of the cell membrane and this electrical signal travels along the muscle fibers. Through

Histology Purpose: What is the purpose of this exercise? The purpose of this exercise is to become more familiar with microscope and slides through observations of tissues. By looking at so many slides I am now much more comfortable at identifying some basic structures. The tissue slides were very important to my understanding of the tissue's function. By looking at the dense regular tendon I can see how supportive it is because of all of the fibers present. It connected what I had read and

1. As you increase voltage to the muscle describe how it responds to the increased stimulus. As the voltage was increased from threshold to maximum voltage, there was a greater force in the muscle contraction. Once the maximum voltage (2500 mv) was reached, even if there was an increase in voltage, the force of the muscle contraction remained the same. 2. What was the smallest voltage required to produce a contraction (the threshold voltage)? What proportion of the fibers in the muscle do