Muscles involved in inhalation and do they expand or contract? - (answers)Intercostals and
diaphragm contract
Part of brain that monitors CO2 to regulate breathing - (answers)Medulla oblongata
Two main functions of nucleolus - (answers)Protein synthesis, synthesis and storage of RNA
Function of ribosomes - (answers)Synthesize proteins from RNA
Golgi complex function - (answers)Synthesizes materials such as proteins that are
transported out of the cell
Endoplasmic reticulum - (answers)transport system of cell
Mitochondria functions - (answers)Production of cell energy; cell signaling; cellular
differentiation; cell cycle and growth regulation
Events of prophase - (answers)chromatin thickens into chromosomes; nuclear membrane
begins to disintegrate; pairs of centrioles move to opp sides of cell and spindle fibers form;
mitotic spindle starts to move chromosomes around
Connective tissue - (answers)bone, cartilage, tendons, ligaments, fat, blood, lymph
Hyperventilation does what to pH? - (answers)Increases blood pH during acidosis; slowing
breathing during alkalosis will decrease pH
How much blood in adult human? - (answers)5 L/quarts
Composition of blood - (answers)...
,Cardiac cycle - (answers)First diastole: blood flows from sup and inf vena cavae to right
atrium through open AV/tricuspid valve. SA node of right atrium contracts to fill R ventricle
w blood. Impulse transmitted through AV node, R ventricle contracts and initiates first
systole. Tricuspid valve closes, pulmonary semilunar opens. Blood pumped from pulmonary
arteries to lungs. Blood from lungs fills L atrium during second diastole. SA node triggers
mitral valve to open, blood fills left ventricle. During second systole, mitral valve closes and L
ventricle contracts, blood pumped from aorta to rest of body.
Lymph vascular system functions - (answers)Return of excess fluid to blood; return of
proteins from capillaries; transport of fats from digestive tract; disposal of debris and cellular
waste
Thymus functions - (answers)Thymosin promotes Tcell formation, T cells mature here
Lymphoid organs include - (answers)adenoids, tonsils, spleen, thymus, appendix, lymph
nodes, patches in small intestine
Spleen functions - (answers)filter unwanted materials from blood, including old RBCs; help
fight infection by filtering pathogens.
Liver functions - (answers)IGF-1, bile, angiotensinogen, thrombopoietin, hepciden,
betatrophon, cytochrome p450. Production of cholesterol; storage of excess glucose in form
of glycogen; regulation of amino acids; processing of hemoglobin; conversion of ammonia to
urea; purification of blood; regulation of blood clotting; controlling infection via boosting
immune factors and removing bacteria. Bill's putt putt golf closed
Bile - (answers)Increases the absorption of fats, aids abs of vitamins A, D, E, and K. Route of
excretion for bilirubin, a byproduct of red blood cells recycled by the liver
Blood for liver to metabolize - (answers)Portal vein
O2 for liver - (answers)Hepatic artery
, Bile released from - (answers)Common hepatic duct
Lipase - (answers)Breaks down fats; secreted by mouth and pancreas
Cells of stomach - (answers)Pareietal cells: HCl; Chief cells: pepsinogen; Mucus cells
Pepsin - (answers)Protein; chief cells of stomach secrete as pepsinogen, activated by HCl
Gastrin - (answers)Steroid endocrine hormone that stimulates secretion of gastric acid (HCl)
by the parietal cells of the stomach and aids in gastric motility. It is released by G cells in the
stomach, duodenum, and the pancreas. Decrease in pH causes negative feedback on gastrin
production
Ghrelin - (answers)Hunger hormone secreted by empty stomach
Secretin - (answers)Released from duodenum, digestive hormone that stimulates the
pancreas to release bicarbonate to neutralize acid in duodenum.
Somatostatin - (answers)Secreted by S cells of pancreas. Inhibits glucagon release and
pancreatic exocrine secretions
Cholecystokinin - (answers)CCK. Following the ingestion of a fatty meal, secreted by the
duodenal mucosa to stimulate contraction of the gallbladder to increase release of bile
Motilin - (answers)Secreted by small intenstine. Stimulates gastric motility, stimulates pepsin
production, improves peristalsis.
Brush border enzymes - (answers)Assist in digestion of carbohydrates and proteins in the
small intestine; activate enzymes; break down small peptides into a.a.s in the small intestine.
Includes proteases, lactase, disaccharidases, nucleosidases