Compare and contrast the three types of muscles, namely, skeletal, smooth and cardiac? A. We can consciously control skeletal muscle but not smooth muscles. Smooth muscles contracts slowly, whereas skeletal muscles contains both slow-twitch and fast twitch bundles. Cardiac muscle is found only in the heart, the other can be found throughout the body.
What is a tendon made of? Tendons are made of dense, regular connective tissue. This form of connective tissue consists of densely packed bundles of collagen fibres. These fibres all run parallel to each other in the direction of the pull that is generated on the tendon What are agonistic muscles? Agonistic muscles are a classification used to describe a muscle that causes specific movement or possibly several movements to occur through the process of its own contraction.
The process repeats with each new heartbeat. The signals that make the heart's muscle fibres contract come from the sinoatrial node, which is the natural pacemaker of the heart. In an ECG test, the electrical impulses made while the heart is beating are recorded and usually shown on a piece of paper. This is known as an electrocardiogram, and records any problems with the heart's rhythm, and the conduction of the heart beat through the heart which may be affected by underlying heart disease. ECG shows how fast the heart is beating, whether the rhythm of the heartbeat is steady or irregular and also the strength and timing of electrical signals as they pass through each part of the heart.
Neither the heart nor the lungs would be able to function without one another. The Cardiovascular System consists of the heart and blood vessels. The heart is a hollow cone-shaped blood vessel that serves as a pump to circulate blood throughout our bodies. The heart is surrounded by the pericardium which holds the heart in place and doesn’t allow it to move from position in the mediastinum, but allows it enough room to be able to contract forcefully when needed (Tortora). The pericardium consist of two parts, the first part is the fibrous pericardium and the serous pericardium.
What is the Cardiovascular System? Also known as the Circulatory System, your heart, blood vessels and blood itself are three essential components the body needs to survive. The Circulatory System consists of two circuits that blood travels through which are called Pulmonary and Systemic. Exercise affects these systems, causing the heart to pump blood faster around the body. There are three components which make up the Cardiovascular System.
Controlled Variables: frequency of stimulation; stimulation voltage; temperature Effect of Stimulation Frequency on Contraction 1. Dependent Variable: contraction force 2. Independent Variable: frequency of stimulation 3. Controlled Variables: stimulation voltage; temperature 4. What structure was stimulated to cause a muscle contraction?
The human heart pumps blood through the arteries, which connect to smaller arterioles and then smaller capillaries. In this assignment, we will discuss the arterial blood pressure from several aspects, include definition, normal values for blood pressure, the most important factors affecting it, the mechanism involved in arterial blood pressure regulation, and the relevance between the pressure and the eye. Definition of blood pressure, it’s Normal value, and the factors that determine arterial blood pressure under physiologic conditions. Blood pressure refers to the force exerted by the blood against the inner walls of the blood vessels . This pressure produces when the heart contracts during the heartbeat cycle, which forces blood out
Muscle tissue contract to produce active movement. Neural tissues conduct electrical impulses and carries information. The protected regions of our body for example our kidney tubes, the lining of the ventral body cavities and the lining of blood vessels are called simple squamous epithelium, they protect regions in which absorption takes place or where a slippery surface reduces friction. Stratified squamous epithelium protects when there are severe mechanical stresses the lining of the mouth and esophagus are prime examples of the epithelium. I believe that if the cutaneous membrane was damaged it would heal in time after all it is our skin and we know that in most people it heals with the help of red blood cells.
The muscles working in your body need oxygen in order to function, as the heart responses by pumping out more oxygenated blood to your muscles, the respiratory system also makes adjustments to help meet the demands of the body during exercise. During exercises, a number of hormones come
The pressure at which blood is pumped around the body by the heart is called blood pressure. The blood pressure of a person is always expressed in the form of two values called 'systolic pressure' and 'diastolic pressure'. In order to understand this, we should first know the meaning of 'systole' and 'diastole'. The phase of the heart beat when the heart contracts and pumps the blood into arteries is called 'systole'. And the phase of heart beat when the heart relaxes (or expands) and allows the chambers to fill with blood is called 'diastole'.