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Flashcards in M-words Deck (15):
1

maximal ejection

the part of the heart cycle following the opening of the semilunar valves durig systole

2

mean electrical axis

direction of the electrical vector of the heart at the peak of the R-wave

3

memory cell

lymphocyte specialized for the long-term storage of the code to synthesize an antibody

4

metarteriole

vessel connecting arterioles and venules from which true capillaries originate

5

microvilli

microscopic cellular membrane protrusions that increase the surface area of some epithelial cells

6

miniature end-plate potential

are the small depolarizations of the postsynaptic terminal caused by the release of a single vesicle into the synaptic cleft

7

mitral valve

bicuspid valve between the left atrium and ventricle

8

monocyte

large WBC with phagocyte function

9

monosaccharide

simple sugar (ribose, glucose, fructose)

10

multipolar neuron

nerve cell with many processes, most neurons are like this

11

muscarinic acetylcholine receptor

ACh receptor at which muscarine mimics the effect of acetylcholine

12

muscle twitch

contraction and relaxation of a muscle caused by a single action potential

13

myelin sheet

layer of Schwann cells or obligodendrocytes wrapped around the axon in 50-100 layers of membrane

14

myofibril

a longitudinal unit of a muscle fiber, made up of sarcomeres and surrounded by sarcoplasmic reticulum

15

myoglobin

iron-containing oxygen-binding protein molecule in the muscles resembling hemoglobin