Introduction: Tissue types in human body. (Kent, 2000) Human body can be classified in many classes. The basic part is cell, cells combine together to make up tissue, tissues combine together to form organs which can work together making up human system and the human systems make up the entire human body. Tissues are group of cells (usually are similar cells) which held together forming common structure that provides the ability to work in union to carry out a specific function (Blueford and Davidson, 2015). Tissues are intermediate organization level in the body between cells and complete organ. There are several types of tissues which can be found in human body. Muscular tissue is one type of human tissue types. It is a soft tissue that …show more content…
The heart is covered by two-layered wall that form a sac which enclose it, and the space between the layers is filled with lubricating fluid to allow them to slide past each other. One full cardiac cycle takes about 0.8 second, so it needs a much specified tissues and cells to hold on this precise function (Campbell, 1977). The wall that enclose the heart is comprises of three layers. Outer pericardium is the very outer layer of the heart wall which consists of adipose and connective tissues and it functions reducing the friction to protect the heart. Epithelial and connective tissues form the endocardium which is the inner layer of the wall, it contains cardiac muscle fibers as well. The layer that localized between the endocardium and pericardium called myocardium, it is made up of organized cardiac muscle tissues which is well-supplied by blood due to it’s essential role in cardiac muscle contractions (Moini, 2011). The cardiac muscle is composed of tissues called Cardiac Muscle Tissue, It can only be found in the contractile walls of the heart and it has an involuntary nature. Cardiac tissues are like other muscle tissues made up of specific cells called Muscle Fibers. The reason of the capability of the cardiac muscle tissues to contract is it’s composition of microfilaments which is made up of proteins called actin and myosin (Harwood and Wilkin, …show more content…
Intercalated discs Heart: One full cardiac cycle takes about 0.8 second, so it needs a much specified tissues and cells to hold on this precise function. Tissues of cardiac muscle are responsible in the process of pumping blood via contracting the heart muscle which causes moving the blood throughout the entire body parts. (Wiley, 2012) The two atria in the heart have relatively thin walls, and it works as chamber to collect blood returned to the heart. These thin walls are enough to pump the blood to a short distance only to the ventricles. But the walls of the ventricles are much thicker and powerful because it is responsible of pumping the blood from the heart to all body organs via organized circuit. The heart chambers fill and pump in specific sequence called the cardiac cycle which contains two phases, contraction phase called systole and relaxation phase called diastole. (Campbell, 1977) Function:
The Pintails heart is like a mammals consisting of four chambers, two ventricles and two atria. The left ventricle pumps blood to all major organs in the body and throughout the rest, only excluding the lungs. This causes the left ventricle to be larger and more muscular. The lungs are fed blood from the right ventricle, which is the only the only function of that ventricle. The oxygenated blood coming from the lungs is fully separated from the oxygenated blood coming from other parts of the body.
TASK 3.1 Write a report comparing and contrasting the structure and function of the three types of blood vessels. The Structure and Functions of Blood Vessels ARTERIES The walls of arteries contain smooth muscle fibre that contract and relax under the instructions of the sympathetic nervous system. The functions of the arteries are: transport blood away from the heart and transport oxygenated blood only.
A bundle branch block anatomy involves the heart, but specifically the electrical nodes of the heart and the chambers of the heart. The electrical nodes of the body act as a pacemaker to help the heart correctly beat. The sinoatrial node (SA node) will send impulses to help the heart to contract. This impulse is sent to the upper chamber of the heart and then passes through the atrioventricular node (AV node). This impulse is sent through a pathway
Heart, lungs and the Rest of You By: Olivia Abel 1.Explain how the blood flows throughout your lungs, heart and the rest of your body. Heart: Your left and right side of your heart work together to pump blood to and throughout your body which is separated by muscular tissue called the septum. In the right side blood enters through two large vein which are the inferior and superior vena cava, emptying poor oxygen blood from the body to the right reticulum. When the left side enters from the pulmonary veins and empties oxygen rich blood from the lungs into the aorta going throughout the body.
Systolic and Diastolic Heart Failure Heart failure occurs when the heart cannot pump enough blood for the body due to a weakened or damaged heart. The heart 's pumping action moves oxygen-rich blood as it travels from the lungs to the left atrium, then on to the left ventricle, which pumps it to the rest of the body. The left ventricle supplies most of the heart 's pumping power, so it 's larger than the other chambers and essential for normal function. (American Heart Association). In left-sided or left ventricular heart failure, the left side of the heart must work harder to pump the same amount of blood.
Nursing interventions are actions used to further the course of treatment for a patient. Once the assessment and diagnosis are completed, the nurse must follow through with planning, interventions and evaluation. An elderly patient is presented with numerous medical issues and experiencing difficulty breathing. Once the patient is diagnosed with hypertension, COPD, GERD, and exacerbation, the nurse can approve appropriate interventions to treat the pathophysiology of each disease. An appropriate pharmacological therapy plan is essential in providing the accurate treatment for the patient.
According to Stein, the structural features of Daphnia heart is similar in many ways to the cardiac hearts of the vertebrates. Therefore, studying
What are Tissues? Tissues are comprised of individual cells and are one of the main building blocks of an organism. All the cells in a tissue do the same job.
Taken together, the bone cells and the extracurricular matrix from the osseous tissue known as bone" (World of Anatomy and Physiology). Bone tissue is very important. The bone tissue forms bones. Bones are a very important in the human system. When the bones are all put together, they form the skeletal system.
In other words, the increase in stroke volume occurs as a result of improved ventricular force of contraction. Heterometric and homeometric control governs myocardial force of contraction. While homeometric control is independent of the myocardial fibres length at the end of diastole, heterometric control depends on this length of myocardial fibres at the diastole end and is mainly influenced by the venous return (Agarwal et al. CC06). The respiratory pump, as well as venoconstriction skeletal muscle pump, influences the rise in venous return during physical activity.
Almost half of a human 's body weight is composed of muscle. There are three distinct types of muscle tissue: cardiac muscle, skeletal muscle, and smooth muscle. Each of the muscle tissues have different structures, properties, characteristics, and roles in our body. Properties of muscle tissues include excitability, contractility, extensibility, and elasticity. Contractility is the ability to shorten, which causes movement of the structures to which the muscles are attached.
Bones may be classified into four types, according to these shape. These are long bones, short bones, flat bones and irregular bones; they are different in anatomy and the mechanism of development (Gardner and Shoback 2007). 2.2 Bone Tissue Bone tissue is a complex structure that consists of cortical or compact bone and cancellous or spongy or trabecular boneg(Figure 2.1) (Seeman and Delmas 2006). The outside of cortical bone is called periosteum and the inner side is called endosteum (Buckwalter et al. 1996).
The global left ventricular sphericity index: Ventricular size and shape are the two geometric aspects that change in dilated hearts. The quantitative anatomic observations of Lindbach, in 1960 described the consistent finding of a more spherical shape within the expanded size of the abnormal geometry of remodeled ventricle [75]. This concept of increased sphericity has led to the development of the sphericity index, as a way to quantify the abnormal geometric changes that accompany heart failure in dilated failing left ventricles. A heamodynamically significant PDA is associated with volume overload and LV remodeling.
The human body is an amazing thing made up of many different parts. These parts are cells, tissues, organs, and organ systems. For starters, one type of cell makes up one type of tissue. Next, two or more types of tissues make an organ. Then, a few organs working together make an organ system.
The organs in a human body are made of a structure called tissue which is also made of cells with similar functions. Tissues are commonly categorized by the function of the cells that make them up. There are four types of tissues in the human body which are nervous, epithelial, muscular, and connective. The main components that make up nervous tissue are nerve cells or neurons.