CHAPTER 17 — BLOOD
This liquid portion makes up about 55% of blood volume.
Plasma
This line of defense includes skin and mucous membranes.
First line of defense
These microscopic air sacs are the primary site of gas exchange.
Alveoli
This digestive process mechanically moves food through the GI tract.
Peristalsis
This female hormone promotes endometrial maintenance after ovulation.
Progesterone
This process produces red blood cells in red bone marrow.
Erythropoiesis
This immune response develops memory after exposure.
Adaptive immunity
This law explains why increasing thoracic volume decreases pressure.
Boyle’s law
This stomach secretion is necessary for vitamin B₁₂ absorption.
Intrinsic factor
This hormone increases water reabsorption in collecting ducts.
ADH
This structure allows RBCs to squeeze through narrow capillaries.
Spectrin
This cell type matures in the thymus.
T lymphocyte
These cells produce surfactant and antimicrobial proteins.
Type II alveolar cells
This GI hormone is released in response to acidic chyme.
Secretin
This hormone system increases blood pressure and sodium retention.
RAAS
This hormone released by the kidneys increases RBC production during hypoxia.
Erythropoietin (EPO)
This immune cell releases perforins to induce apoptosis.
Cytotoxic T cell
This type of respiration describes gas exchange between blood and tissues.
Internal respiration
This process mixes chyme in the small intestine without strong forward propulsion.
Segmentation
This male erectile tissue surrounds the urethra.
Corpus spongiosum
This blood disorder results from red bone marrow failure affecting all formed elements.
Aplastic anemia
This type of immunity results from transfer of maternal antibodies through breast milk.
Naturally acquired passive immunity
This airway branch is wider, shorter, and more vertical on the right side.
Right main bronchus
This circulation pathway carries absorbed nutrients from GI tract to liver.
Hepatic portal circulation
This pressure opposes glomerular filtration due to plasma proteins.
Blood colloid osmotic pressure