Aphy 102

Trace the pathway of urine from the nephron to the body's exterior. - ANSWERSNephron, glomerulus, bowman's capsule, proximal convoluted tubule, loop of Henle, distal convoluted tubule, collecting duct, minor calyx, major calyx, renal pelvis, ureter, bladder, urethra, urethral orifice What parts make up the nephron? - ANSWERSRenal corpuscle Renal tubule Glomerulus Bowman's capsule Efferent arteriole loop of henle What are aquaporins? - ANSWERSChannel proteins which facilitate ...

Endocrine glands differ from exocrine glands in that endocrine glands - ANSWERSSecrete hormones directly into a body fluid What is a hormone - ANSWERSA chemical messenger, that affects the functioning of certain cells in the body Which of the following endocrine glands is also a major exocrine gland of the digestive system - ANSWERSPancreas Find the false statement below, if any, about steroid hormones - ANSWERSTheir receptors are located on the cell membrane of their target cells.

Normal heart sounds are caused by which of the following events? - ANSWERSClosure of the heart valves The left ventricular wall of the heart is thicker than the right wall in order to - ANSWERSPump blood with greater pressure What happens when the tricuspid valve is closed - ANSWERSPrevents blood from backing into the right atrium If cardiac muscle is deprived of its normal blood supply, damage would primarily result from? - ANSWERSDecreased delivery of oxygen If the vagal nerves to ...

What regulates pituitary gland secretion? - ANSWERSanterior and posterior lobe regulation: - anterior: hypothalamic releasing hormones are transported through the hypophyseal portal system and stimulate cells of anterior lobe to release hormones - posterior: nerve impulses from the hypothalamus travel through the infundibulum, and stimulate nerve endings in posterior lobe to release hormones What is a hormone and how does it act? - ANSWERS- hormones are chemical messengers that are resp...

The structure of a lymphatic vessel is most similar to that of a(n) - ANSWERSvein In order to be fully activated, most __________ cells require interaction with __________ cells. - ANSWERSB;T What is the first component(s) of the immune system to decline with age? - ANSWERSThymus What is not true of the spleen? - ANSWERSThe spaces in the lobes of the spleen are filled with lymph What term refers to any molecule that elicits an immune response? - ANSWERSAntigen The thymus enlarges ...