Biology

The human heart is the size your fist.

The two arteries leading from the heart are the pulmonary artery and the aorta.

The two veins leading to the heart are the pulmonary veins, and the vena cava.

The blood vessel that applies blood to the heart tissues is called the cardiac artery.

The chamber of the heart that the cava flows to is is the right atrium.

The chamber of the heart, that the blood from the pulmonary vein flows into the left atrium.

The structures that stop blood flowing the wrong way around the heart are the valves.

The membrane that surrounds the heart is called the pericardium. It is shiny and slippery so that the heart can be inside and the lungs can move outside.

The thickness of the muscle tissue differ between the left and right bench, because the thickness of the left ventricle is thicker than the right. This is because it has to pump blood into the blood vessels where the right has to pump blood into the lungs.

Hot tissue is soft, elastic texture in water. It can swell absorbing the water and becoming softer.

The right lung is slightly shorter because of its position to the liver.

On each side of your heart inside your chest cavity is where the lungs are found.

The appearance of the trachea is a pipe with a sea shaped, hard ring, and a soft part of complete the circle. They are rings on top of each other.

The part of the trachea are the bronchi, the bronchioles and the alveoli.

The function of the cartonnage rings are to support the trachea, but also allow it to move in flex when you breathe.

The flap that protects the trick when you're eating is called the epiglottis.

The trachea branches off into two bronchi these further smaller tubes called bronchioles these end with air sacs called alveoli.

The gas that diffuses from the air in the alveoli into the blood is oxygen.

The gas which diffuses from the blood into the air in the alveoli, is carbon dioxide.

When someone blows into the lungs, the lungs, expand (contract).

Lung tissues are covered in a membrane that feels like clingfilm with water over it the lungs by also absorbed the water.

Parts of the lungs are the lyrics, the right superior lobe, the right middle lobe, the right inferior lobe, the trachea, the left superior lobe, the bronchial tree, the cardiac notch, the diaphragm, the left inferior lobe.

The bronchial tree is a system of airways within the lungs, which bring air from the trachea to the lungs, tiny air sacs, which are called alveoli.

Cardiac is an indentation in the left lung that provides room for the heart.

The diaphragm is a muscular membrane under the lungs.

The larynx is a muscular structure at the top of the containing the vocal cords.

The left inferior is the bottom lobe of the lung on the left side of the body.

The left superior lobe is the top lobe of the lung on the left side of the body.

The lab is the bottom lab of the lung on the right side of the body.

The middle is the middle lobe of the lung on the right side of the body.

The right superior lobe is the top lobe of the lung on the right side of the body.

The trachea (windpipe) is the tube which air travels from the larynx to the lungs.

The full functions of the skeletal system is support/protection, allows movement, makes red, blood cells, shape.

The tendons transfer muscle generated force to the skeletal system, facilitating movement around a joint.

The gas which is produced when a metal carbonate reacts with an acid is carbon dioxide.

As our inhaled the rib cage, expand and rip muscle contract. The diagram also contract moving down as there is exhaled. The rib cage gets smaller and rib muscles. Relax, the diaphragm also relaxes and moves up.. This is called ventilation.

Respiration is how we get energy. It takes base in mitochondria they taking glucose and oxygen and creates CO2 and water creating energy.

The superior vena cava carries blood to the heart.

The aorta carries blood to the body

The pulmonary artery carries blood to the lungs.

The pulmonary veins carry blood from the lungs.

The substance is found in extra cellular matrix of bones are hydroxyapatite and collagen.

The circulatory system includes the heart and blood vessels. Its function is to get blood around the body and give oxygen to muscles and organs.

The three types of blood vessels in the circulatory system are veins, arteries and capillaries.

Injuries arteries, more dangerous injuries, which cut veins because they have the higher pressure because they are in close proximity to the heart and you may therefore bleed up and die.

The capillary have the thinnest wall and the artery have the thickest.

Arteries move away from the heart.

Veins move back towards the heart.

Capillaries move towards tissue or organs.

The arteries oxygen levels are high.

Veins oxygen levels are low.

Capillaries, oxygen levels are high to low.

Arteries have a small lumen.

Veins have large lumen.

Capillaries have narrow lumen.

Artery pressure is high.

Vein pressure is low.

Capillary pressure is low.

Arteries have a pulse, no valves.

Veins have valves, no pulse.

Capillaries don't have a pulse or valves.

The lumen are the inside space of a tubular structure, such as an artery or intestine.

Hydroxide is a hot mineral that decompose with acid.

Collagen is a soft stretchy, fibre, burn in fire.

A chicken bone is very hard, strong difficult to break.

When soaked in acid, a chicken bone is very Bendy and weak, it will not provide the body structure or protection.

When it was soaked and acid, the hydroxide has been destroyed, so no longer any hard mineral.

Sharks have a skeleton those only composed of more flexible cartilage because they're more flexible. Lots of muscle supports them and water supports them too.

The bone has been burned. Collagen was burned away, it became more brittle.

When you bend bone that was burned it snaps because no more flexible fibre collagen is there.

Bones become weak and brittle because of osteoporosis.

If someone has osteoporosis, they will have a lot of height due to a broken bone in the spinal column (bad posture).

Three calcium rich foods that can prevent the development of osteoporosis are milk, cheese and kale. They need to be part of a good balanced diet.

The organ systems are the skeletal system, the respiratory system, the muscular system, the circulatory system, the digestive system and the nervous system.

The skeletal system gives your body its shape allows movement makes blood cells provides protection for your organs and stores minerals.

The respiratory system moves fresh air into your body, while removing waste gases. It also allows you to talk and smell as well as balancing levels of acidity in your body.

The muscular system helps with mobility, stability, posture, circulation. It also allows you to move and chew. It controls the heartbeat, breathing digestion, temperature regulation and vision..

The circulatory system moves oxygen, nutrients and hormones to your body cells to use for energy growth and repair. It also removes carbon dioxide and other waist products that cells don't need.

The digestive system breaks down food into simple nutrients, such as carbohydrates, fats and proteins. These can then be absorbed into your blood, so your body can use them for energy, growth and repair.

The nervous system helps all parts of the body to communicate with each other. It also reacts to changes both inside and outside the body. It uses both electrical and chemical means to send and receive messages.

Tissue is a collection of the same type of cell.