Which of the following anchors the conceptus to the uterine wall?
A. Yolk sac
B. Syncytiotrophoblast
C. Cytotrophoblast
D. Blastomere
E. Embryoblast
Answer: B
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You are a new pediatrician at an office where you've inherited cases from a previous doctor and are sitting down to go through case files. Today you'll be seeing Trevor, a toddler who has been diagnosed with a disease called megacolon. Back in medical school you learned that megacolon can be characterized by partial paralysis of the the nerves found within the wall of the GI system. Which of the following is likely to be among Trevor's symptoms?
A. Diarrhea B. Constipation and a swollen-looking belly C. Discolored feces due to lack of Bile D. Abnormal blood glucose regulation E. Incomplete denaturation of ingested proteins
Cerebrospinal fluid is produced by ________ and it ________.
A. dura mater; maintains a stable ionic concentration in the CNS B. capillaries in the dura mater of the ventricles; moistens the surface of the brain C. arachnoid villi in the dura sinus; provides a pathway to the blood for waste D. choroid plexuses in the ventricles; protects the brain from blows to the skull
Why does the administration of epinephrine ease the respiratory difficulties of a person with bronchitis?
What will be an ideal response?
The action of the vastus lateralis is to
a. abduct the knee b. extend the knee c. flex the knee