b2- the heart and blood vessels

whats the strucutre of the heart to provide a strong heartbeat?

the heart has muscular walls to provide a strong heartbeat

what type of blood flows into the right atrium then ventricle to the lungs for gas exchange?

deoxygenated blood flows into the right atrium then into the right ventricle which pumps it to the lungs for gas exchange

what type of blood flows into the left atrium,ventricle and pumped around the body

oxygenated blood flows into the left atrium then into left ventricle which pumps oxygenated blood around the body

where does the heart pump blood around?

the heart pumps blood around the body

how many chambers does the heart have?

the heart has 4 chambers

name all atrium and ventricles

right atrium,right ventricle,left atrium,left ventricle

what type of blood does the vena cava bring in from the body?

the vena cava brings in deoxygenated blood from the body

where does blood pass from …. to the …..in the pulmonary artery?

the blood passes from the heart to the lungs in the pulmonary artery

what type of blood passes from the …. to the heart in pulomnary vein

oxygenated blood passes from the lungs to the heart in the pulmonary vein

what type of blood is pumped from the heart to …. in the aorta?

oxygenated blood is pumped from the heart to the body in the aorta

1st part of the process of the pattern of blood flow in the heart - what enters the left and right …..

first blood enters the left atrium and right atrium

2nd part of the process of the pattern of blood flow in the heart - what contracts and whats forced into the ventricles?

the atria contracts and blood is forced into the ventricles

3rd part of the process of the pattern of blood flow in the heart - what contracts,whats forced out of the heart?

the ventircles contracts and force blood out of the heart

4th part of the process of the pattern of blood flow in the heart - what stop blood flowing backward into the … when ventricles contract?

the vavles stop blood flowing backwards into the atria when the ventricles contract

in the heart what side has a thicker muscular wall than the …. side?

the left side of the heart has a thicker muscular wall than the right side

what do the coronary arties cover to provide?

coronary arteries cover the heart to provide its own oxygenated blood supply

why does coronary arties need oxygen?

coronary arties need oxygen as oxygen is used in respiration to provide energy for contraction

what is the naturual resting heart rate controlled by?

the natural resting heart rate is controlled by the pacemaker

what does the pacemaker provide?

pacemaker provides stimulation through small electrical impulses

whats the artificial pacemaker use

artificial pacemaker is used if someone has an irregular heartbeat

where is blood pumped from and to,what does it collect?

blood is pumped from th heart tothe lungs where it collects oxygen