Maximum amount of glucose absorption occurs at_______________?
(A) PCT
(B) DCT
(C) Loop of henle
(D) None
The renal threshold for glucose is_______________?
(A) 180 mg / dl
(B) 100 mg/dl
(C) 120 mg/dl
(D) 80 mg/dl
To measure renal plasma clearance compound should be_________________?
(A) <70,000 Mol.wt
(B) Bound to plasma protein
(C) Secreted by the tubules
(D) Completely filtered by glomerulus
What is the glomerular filtration rate ?
(A) 100 ml/min
(B) 125 ml/min
(C) 150 ml/min
(D) 175 ml/min
Which is caused by acetylcholine through nicotinic receptors_____________?
(A) Contraction of skeletal muscle
(B) Decrease of heart rate
(C) Secretion of saliva
(D) Contraction of pupils
The contractile element in a skeletal muscle is present in______________?
(A) Sarcolemma
(B) Sarcoplasm
(C) Myofibril
(D) Endomysium
Skeletal muscles______________?
(A) Contracts when calcium is taken up by sarcoplasmic reticulum
(B) Contracts when actin and myosin filaments shorten
(C) Contraction is initiated by calcium binding to troponin
(D) Contraction is initiated by calcium binding to tropomyosin
Electromyography is used for________________?
(A) To study muscle activity
(B) Determine class II malocclusion
(C) Determine the centric relation
(D) Determine the centric occlusion
The skeletal muscle action potential______________?
(A) Is not essential for contraction to occur
(B) Has a prolonged plateau phase?
(C) Spreads in ward to all parts of the muscle via the t- tubule system
(D) Begins with an, in ward movement of K+ ins
Rigor mortis results after death is due to________________?
(A) Failure of acetylcholine to diffuse
(B) Failure of ATP supply
(C) Failure of break down of calcium bridges
(D) None of the above