Physiology Flashcards
1
Q
which of the following has the fastest traveling impulse? SA node AV node purkinje fibers bundle of His
A
purkinje fibers
pacemaker = SA delay = AV
2
Q
which of the following is responsible for forced inspiration? inspiration reserve volume tidal volume expiratory reserve volume vital capacity
A
inspiratory reserve volume
3
Q
which of the following is the thickest area in a blood vessel? tunica intima tunica adventitia vaso vasorum tunica media
A
tunica media (muscularis)
4
Q
which of the following is most responsible for edema formation? globulin triglycerides low density lipoprotein albumin
A
albumin
5
Q
which of the following can lead to metabolic alkalosis? hyperventilation excessive diarrhea vomiting hypoventilation
A
vomiting
6
Q
the major portion of absorption in the nephron occurs in the \_\_\_. proximal convoluted tubule collecting duct distal convoluted tubule loop of henle
A
proximal convoluted tubule
7
Q
where does glucose reabsorption take place? proximal convoluted tubule convoluted tubule distal convoluted tubule loop of henle
A
proximal convoluted tubule (absorption)
8
Q
where is the pituitary gland located? hypoglossal canal Christa galli sella turcica perpendicular plate
A
sella turcica of sphenoid bone
9
Q
which of the following hormones produces testosterone? luteinizing hormone follicle stimulating hormone somatotropic hormone melanocyte stimulating hormone
A
luteinizing hormone
10
Q
which of the following conditions has the highest levels of prolactin? fertilization menstruation parturition third trimester
A
parturition
11
Q
which of the following structures surrounds the urethra? prostate bladder scrotum testis
A
prostate
12
Q
where is norepinephrine released from? post ganglionic cells pre ganglionic cells adrenal cortex alpha receptors
A
post ganglionic cells of sympathetic nervous system
13
Q
which of the following is most likely to cause left ventricular hypertrophy? mitral stenosis pulmonic regurgitation systemic hypertension pulmonary hypertension
A
systemic hypertension
14
Q
the coronary sinus glows into which of the following? right ventricle left ventricle right atrium left atrium
A
right atrium
15
Q
what is the point of the AV node?
slows the conduction going into the ventricles
slows the conduction going into the atrium
speeds up the conduction going into the ventricles
speeds up the conduction going into the atrium
A
slows the conduction going into the ventricles to allow the atria to contract
