Answers
How many protein chains, heme group, and iron does a hemoglobin contain? 4 protein
chains, 4 heme groups, and 4 irons
The most abundant type of leukocyte in a normal blood sample is the Neutrophils
A blood clot attached to a blood vessel wall is called a(an) Thrombus
The formed elements of the blood includes red blood cells, white blood cells, platelets
A person with type A blood has ____ antigens on the surface of their red blood cells A
Why is the blood red in color? Due to the presence of hemoglobin. Hemoglobin contains
iron, which binds to oxygen, giving blood its red color
,Why would there be cause for concern if a young pregnant mother is Rh-, her husband is Rh+,
and this is their second child? When an Rh-negative mother carries an Rh-positive baby,
especially if it's not her first, there's a risk of Rh incompatibility. Her immune system may treat
the baby's Rh-positive blood as foreign, leading to serious complications for the baby. This can
be prevented with Rh immunoglobulin (RhIg) injections during pregnancy and after childbirth.
How can liver dysfunction cause bleeding disorders? because of the relative deficiency of
both procoagulant( PROMOTE BLOOD CLOTTING) and anticoagulant(PREVENT BLOOD
CLOTS) factors in chronic liver disease, the balance is more fragile and more easily tipped
toward bleeding or thrombosis.
The innermost layer of the heart wall is the
a. mediastinum
b. myocardium
c. epicardium
d. endocardium endocardium
Malfunctioning chordae tendineae would
a. allow blood to flow back into the aorta
b. prevent closure of the semilunar valves
,c. allow blood to flow back into the vena cava
d. cause blood to flow back into the atria Cause blood to flow back into atria
Which of the following indicates the start of the systemic circuit
a. pulmonary trunk
b. vena cavae
c. aorta
d. pulmonary arteries aorta
The tricuspid valve is located
a. in the opening of the aorta
b. in the opening of the pulmonary trunk
c. between the right atrium and right ventricle
d. between the left atrium and the left ventricle between the right atrium and right
ventricle
Contraction of the heart chamber is called
1. diastole
, b. depolarization
c. systole
d. hyperpolarization systole
a disorder involving the buildup of fatty deposits and partially or completely blood coronary
arteries is
a. valvular heart disease
b. coronary thrombosis
c. rheumatic heart disease
d. coronary artery disease coronary artery disease
What is the condition in which heart rate is slower than normal? Bradycardia
The heart is surrounded by what cavity? pericardial cavity
Each cardiac muscle cell is bound to its neighboring cells at sites called intercalated disc
The amount of blood ejected by a ventricle during a single beat is called Stroke volume