Which of the following is false concerning the allantois?
A) It derives partly from endoderm.
B) It projects into the umbilical cord.
C) It stores nitrogenous wastes.
D) Part will develop as the urinary bladder.
E) It acts as the fetal bone marrow.
E
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The elimination of fecal material from the body is called ________.
What will be an ideal response?
The inferior vena cava:
A) begins anterior to the L5 vertebrae. B) receives the right testicular vein. C) is shorter than the abdominal aorta. D) passes into the thorax at the T10 level. E) is the only route by which blood from the inferior part of the body can return to the heart.
Which statement best describes the goal of medications used to treat myasthenia gravis?
A. To increase the number of acetylcholine receptors B. To inhibit the function of cholinesterase C. To decrease the number of synaptic vesicles D. To promote multiple motor unit summation E. To inhibit Ca2+ release from the sarcoplasmic reticulum
The endocrine functions of the kidney and the heart include the production and secretion of which of the following hormones?
a. erythropoietin and atrial natriuretic peptide b. insulin and glucagon c. renin and angiotensinogen d. epinephrine and norepinephrine