T,U,V-words Flashcards Preview

Anatomy definitions > T,U,V-words > Flashcards

Flashcards in T,U,V-words Deck (22):
1

tercier structure of proteins

3D, spatial structure of the protein chain stabilized by weak interactions

2

tetanic contraction

uninterrupted muscular contraction caused by high frequency motor impulses

3

thrombosis

blockage of a vessel due to a blood clot formed in the vessel

4

tidal volume

amount of air that is inhaled and exhaled during a breathing cycle at rest

5

tight junction

area of membrane fusion between adjoining cells that prevent the passage of extracellular material between the cells

6

time constant

time required for an externally induced potential change in the membrane to decrease to 37% of the original potential

7

trace elements

elements needed in a very low concentration for the normal functioning of an organism, their total amount is about 0,01% (Fe, I, Zn, Co, etc.)

8

trachea

large airway containing cartilage, connects the larynx and pharynx to the lungs, goes down to the bronchi

9

tricuspid valve

valve between the right atrium and ventricle

10

triglycerides

an ester derived from glycerol and three fatty acids

11

T-tubules

invagination of the sarcolemma, carrying excitation to the sarcoplasmic reticulum

12

turbulent flow

a flow pattern in which particles of the fluid move irregularly in all directions of the space

13

unipolar neuron

neuron with only one process

14

unsaturated fatty acid

fatty acid with one or more double bonds

15

Valsalva's maneuver

when you close your mouth and pinch your nose and try to exhale (e.g. to release pressure while in an airplane)

16

van der Waals forces

relatively weak attraction between atoms and molecules with hydrophobic properties
due to the random fluctuation of the electron clouds

17

vena cava

meaning "empty vein", large veins returning from the body to the right atrium

18

ventilation

air exchange between the lungs and the ambient air

19

venule

small vessel connecting veins and capillaries

20

vesicle

small, spherical compartment in the cell surrounded by the membrane

21

viscosity

physical property of fluids that determines the ease with which the layers of a fluid move past
each other

22

vital capacity

the maximum amount of air that can be inhaled and exhaled by the lungs