Quiz #3 (A&P 2)

Question 1

plasma

Answer 1

the matrix of nonliving fluid

Question 2

functions of blood

Answer 2

transport
regulation
protection

Question 3

transport functions

Answer 3

– Delivering O2 and nutrients to body cells
– Transporting metabolic wastes to lungs and kidneys
for elimination
– Transporting hormones from endocrine organs to
target organs

Question 4

regulation functions

Answer 4

– Maintaining body temperature by absorbing and
distributing heat
– Maintaining normal pH using buffers; alkaline reserve
of bicarbonate ions
– Maintaining adequate fluid volume in the circulatory
system

Question 5

protection functions

Answer 5

– Preventing blood loss
▪ Plasma proteins and platelets in the blood initiate clot
formation
– Preventing infection
▪ Agents of immunity are carried in blood
– Antibodies
– Complement proteins
– White blood cells

Question 6

formed elements

Answer 6

living blood cells
– Erythrocytes (red blood cells, or RBCs)
– Leukocytes (white blood cells, or WBCs)
– Platelets

Question 7

Spun tube of blood yields three layers:

Answer 7

– Erythrocytes on bottom (~45% of whole blood)
– Normal values:
* Males: 47% ± 5%
* Females: 42% ± 5%
– WBCs and platelets in Buffy coat (< 1%)
▪ Thin, whitish layer between RBCs and plasma
layers
– Plasma on top (~55%)