Unit 4 Transport A&P

Which of the following statements about blood cells is not true?

• Life span of around 120 days

• No Nuclei

• Contain Hemoglobin

• Divide to make new cells when the old ones need to be replaced.

If your blood is o- that means

• you have no agglutinogens on your red blood cells

• You have the rhesus antigens

• you only have anti-A antibodies in your blood plasma.

• all of the above.

Which ion allows hemoglobin to readily bind with O2.

• Fe

• Na

• K

• Ca

The ___ side of the heart is the ___ circuit and pumps oxygen poor blood to the ____.

• Right, pulmonary, lungs

• right, systemic, lungs

• left, systemic, body

• left, pulmonary, body

The purpose of the serous fluid on the pericardial cavity is

• to carry critical nutrients like oxygen to the heart

• to provide Ca ions needed for muscle contraction

• to decrease friction between the layers of the heart as it contract

• to lubricate the walls of the blood vessels to decrease resistance to blood flow.

Which of the following is true for both cardiac and skeletal muscle tissue?

• Striated

• Contract as a unit

• Branched

• Can spontaneously depolarize without input from the nervous system.

Which of the following statements about the AEDs is false?

• They are tools used for someone experiencing sudden cardiac arrest

• An AED can be used to restart a heart with no electrical activity

• They get the cardiac cells contracting in sync again

• They work by stopping the heart for a second in order to reset it.

Which correctly matched the structure with its function?

• Veins carry blood away from the heart

• The atria are the high pressure receiving chambers of the heart

• The sinoatrial node initiates the action potential that causes the heart to beat.

• Contractile cardiac muscle cells can trigger their own action potentials without neural input.

The amount of strain or force placed on the blood vessels as the blood moves through them is known as

• Pulse

• diastole

• tidal colume

• blood pressure

Which of the following statements about the valves of the heart is not true?

• The tricuspid valve is the semilunar valve on the right side of the heart.

• The aortic valve prevents backflow into the left ventricle

• the mitral valve had two cusps between the left atrium and left ventricle.

• The pulmonary valve guards the base of the pulmonary trunk.