Which of the following does NOT occur during the embryonic period?
A) organogenesis B) formation of the placenta
C) implantation D) gastrulation
Answer: C
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The stomach is different from other digestive organs in that it
A) has folds in the mucosa. B) has three layers of muscle in the muscularis externa. C) secretes digestive juice. D) moves by peristalsis. E) secretes digestive hormones.
During telophase of mitosis, chromosomes elongate and form chromatin threads
Indicate whether the statement is true or false
Which of the following statements is true?
A. Normal filtrate contains a large amount of protein. B. Most filtrate (99%) is eliminated as urine. C. Hormones play a minor role in fluid homeostasis. D. Sodium ions are secreted into the filtrate of the proximal convoluted tubule. E. Reabsorption of water in the filtrate may be hormonally controlled.
The neuromuscular junction is found between which two structures?
A) Axon terminal of motor axon and T-tubule B) Dendrite of motor neuron and sarcoplasm C) Axon terminal of motor neuron and motor end plate D) Cell body of motor neuron and myofibril