Describe the structure and function of the cardiovascular system
Blood vessels
Arteries, veins and capillaries takes blood and nutrition to the muscles and back from the heart. Arteries take the blood that has O2 in it away from the heart under high pressure with a small diameter and it has thick muscular walls, and veins take the blood back to the heart under low pressure it has a medium thickness to it and a large diameter because it has valves to stop the blood flowing backwards. Capillaries is one cell thick so it can take the blood to and from the muscle tissue.
Small arteries branch into even smaller vessels which are called arterioles, which channels the blood flow into different tissue. Arterioles branch into capillaries, the smallest …show more content…
Structure of the respiratory system
The breathing cycle starts at by coming in by the nasal cavity is a space in the nose and also known as inspiration, it has hairs and mucus membrane. The function is to filter warm and moisten the air entering the body before it reaches the lungs. The mouth leads to the Pharynx.
The Pharynx is also known as the throat and is a muscular tube running from your epiglottis stomach. It is a part of your digestive tract. The epiglottis is a trapdoor in your throat. It is covered with a mucous membrane and taste buds located at the larynx. It is shaped like a leaf and guards the entrance of the glottis. It is one of the nine cartilage structures. You can see The upper surface of the epiglottis. When you swallow food it folds over the glottis to stop liquid and food from entering the trachea so the food goes into the oesophagus. It also is used for speech sounds in some languages.
The larynx is also known as the voice box.
The trachea or wind pipe has rings around it to keep it …show more content…
Also known as the thoracic diaphragm.
Thermoregulation
Thermoregulation is the process that allows the body’s temperature to stay the same, it is like having an internal thermometer. A part of it is called Vasodilation is the widening of blood vessels by relaxing it makes it go to the surface of the body by doing this it cools the blood flow. Vasoconstriction does the opposite.
Intercostal muscles
The intercostal muscles are muscles located at the ribcage they help keep the shape of the chest walls and are involved in the mechanical part of your breathing.
The external intercostal muscles are responsible for breathing in, and the internal intercostal muscles are responsible for breathing out.
Lung volumes and lung capacities refer to the volume of air associated with different phases of the respiratory cycle. Lung volumes are directly measured; Lung capacities are inferred from lung volumes.
Respiratory Volumes
Respiratory volumes are the amount of air inhaled, exhaled and stored within the lungs at any given time
Tidal Volume: The amount of air which enters the lungs during normal inhalation at rest. The average tidal volume is 500ml. The same amount leaves the lungs during
Blood vessels
Arteries, veins and capillaries takes blood and nutrition to the muscles and back from the heart. Arteries take the blood that has O2 in it away from the heart under high pressure with a small diameter and it has thick muscular walls, and veins take the blood back to the heart under low pressure it has a medium thickness to it and a large diameter because it has valves to stop the blood flowing backwards. Capillaries is one cell thick so it can take the blood to and from the muscle tissue.
Small arteries branch into even smaller vessels which are called arterioles, which channels the blood flow into different tissue. Arterioles branch into capillaries, the smallest …show more content…
Structure of the respiratory system
The breathing cycle starts at by coming in by the nasal cavity is a space in the nose and also known as inspiration, it has hairs and mucus membrane. The function is to filter warm and moisten the air entering the body before it reaches the lungs. The mouth leads to the Pharynx.
The Pharynx is also known as the throat and is a muscular tube running from your epiglottis stomach. It is a part of your digestive tract. The epiglottis is a trapdoor in your throat. It is covered with a mucous membrane and taste buds located at the larynx. It is shaped like a leaf and guards the entrance of the glottis. It is one of the nine cartilage structures. You can see The upper surface of the epiglottis. When you swallow food it folds over the glottis to stop liquid and food from entering the trachea so the food goes into the oesophagus. It also is used for speech sounds in some languages.
The larynx is also known as the voice box.
The trachea or wind pipe has rings around it to keep it …show more content…
Also known as the thoracic diaphragm.
Thermoregulation
Thermoregulation is the process that allows the body’s temperature to stay the same, it is like having an internal thermometer. A part of it is called Vasodilation is the widening of blood vessels by relaxing it makes it go to the surface of the body by doing this it cools the blood flow. Vasoconstriction does the opposite.
Intercostal muscles
The intercostal muscles are muscles located at the ribcage they help keep the shape of the chest walls and are involved in the mechanical part of your breathing.
The external intercostal muscles are responsible for breathing in, and the internal intercostal muscles are responsible for breathing out.
Lung volumes and lung capacities refer to the volume of air associated with different phases of the respiratory cycle. Lung volumes are directly measured; Lung capacities are inferred from lung volumes.
Respiratory Volumes
Respiratory volumes are the amount of air inhaled, exhaled and stored within the lungs at any given time
Tidal Volume: The amount of air which enters the lungs during normal inhalation at rest. The average tidal volume is 500ml. The same amount leaves the lungs during