Types of transport systems
- Created by: Aimee Gernon
- Created on: 14-11-13 09:44
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- Transport in Animals (Part one )
- The structure of the heart
- The muscle that your heart is made of is called cardiac muscle
- This cardiac muscle is myogenic so it contracts itself
- The largest artery is the aorta
- Pulmonary artery and veins
- The pulmonary artery takes blood to the lungs
- The pulmonary vein takes blood back to the heart from the lungs
- There are two large veins called the venae cava
- The coronary arteries branch from the aorta
- They deliver oxygenated blood to the muscles of the walls of the heart
- The heart has 4 chambers
- The upper chambers on both sides of the heart are called the atrium
- They receive blood from the veins and pump into the ventricles
- The lower chambers are called the venticles
- Blood flows into ventricles from atria
- Blood flows left from aorta and flows right fro pulmonary arteries
- Blood flows into ventricles from atria
- The atria and ventricles have valves between them called the atrio-ventricular vavlves
- The left valve is bicuspid and right is tricuspid
- The upper chambers on both sides of the heart are called the atrium
- The muscle that your heart is made of is called cardiac muscle
- Single and double circulatory systems
- Humans have a double circulatory system
- One part of the serves blood to the lungs (pulmonary circulation)
- The other part serves blood to the rest of the body (systematic circulation)
- One part of the serves blood to the lungs (pulmonary circulation)
- Fish have a single circulatory system
- The blood is pumped out of heart and to the gills
- But instead of going back to the heart the blood continues around the rest of the body
- The blood is pumped out of heart and to the gills
- Humans have a double circulatory system
- Open and closed circulatory systems
- Humans have a closed circulatory system meaning the blood is enclosed within the vessels
- Insects have an open circulatory system meaning the blood is not contained within the vessels but within the cavity
- Types of transport systems
- Humans have a transport system to transport nutrients and oxygen
- Small organisms do not need a transport system
- They get their nutrients and oxygen by diffusion because of their large surface area to volume ratio
- Larger active organisms need a transport system
- They cannot rely on diffusion because there surface are to volume ratio is not a big
- The structure of the heart
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