What is the girdle of glycoproteins just below the tight junction between epithelial cells?
A. gap junction
B. hemidesmosomes
C. adhesion belt
D. desmosomes
E. intercalated disks
C
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What stage happens 3—4 days after fertilization?
a) A b) B c) C d) D e) E
Shock may develop from
a. loss of blood b. low cardiac output c. decreased venous return d. excessive vasodilation e. all of the above
Which of the following is not a method of gradation of skeletal muscle contraction?
a. twitch summation b. motor unit recruitment c. stimulating variable portions of each motor unit d. varying the number of motor units stimulated e. varying the frequency at which a motor unit is stimulated
The filtration membrane consists of the
A. capillary epithelium, podocytes, and macula densa. B. podocytes, basement membrane, and macula densa. C. basement membrane, capillary epithelium, and macula densa. D. parietal layer and visceral layer. E. podocytes, capillary endothelium, and basement membrane.