Levels of organisation
What is the definition of an organ system
A system that comprises of many organs working together to do a job
How many chambers does the heart have?
4 chambers; ventricles and atria
What are the atria of the heart responsible for?
Receiving blood
What are the purposes of the skeleton in the human body?
Movement, protection, support
What's the name of the knife we use in dissection?
Scapel
What is the smallest level of organisation?
Cell
Why is blood in arteries shown as red and in veins blue?
Red= more oxygen
blue= less oxygen
Explain the role of ventricles in the heart.
The muscles in the ventricles pump blood up and into the blood vessels
What connects muscle to bone?
Tendons
What doe we do to prepare our space for a dissection?
Line the bench with newspaper, set up equipment, put on protective gear
What are tissues made from?
Lots of cells
What part of the heart sends blood Away to the rest of the body?
Arteries, specifically the Aorta
What type of blood does the vena cava bring into the right side of the heart?
De-oxygenated blood
What connects bone to bone?
Ligaments
What is the name of the equipment we use to pick up parts of our dissection?
Tweezers
Give an example of an organism.
Any type of animal
Why is it called the circulatory system?
It circulates blood around the body
What are the things that stop blood from moving the wrong way?
Valves
What is a joint and provide one example?
Joints allow the body to move and example could be the elbow, shoulder, knee, hips.
How do we pack up the equipment after a dissection?
Throw things into bin bag, wipe down table and return equipment cleaned.
Which level of organisation is made from tissues?
Organ
Where does blood go to get oxygen?
The lungs
How does the pulmonary vein differ from the pulmonary artery?
Veins bring blood to the heart, arteries take them away
What are the three types of muscle?
Cardiac, smooth and skeletal
Name the two dissections we performed and the system they are relevant to
Heart; circulatory system
Chicken wing; muscuoskeletal (muscles and bones)