An infant is born with a large defect in the central tendon of the diaphragm. This condition is most likely the result of malformation of which of the following structures?
(A) Dorsal mesentery of the esophagus
(B) Ventral mesentery of the gut tube
(C) Pleuroperitoneal folds
(D) Septum transversum
(E) Cervical somites
Ans: (D) Septum transversum
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Define and explain the difference between isotonic, isometric and eccentric contractions and give an example of a specific movement for each. What is the role of series elastic elements in muscle contraction?
What will be an ideal response?
A neuron might be temporarily unable to transmit an impulse to another if
A) its supply of neurotransmitters is exhausted. B) the neurons are of different types. C) you are asleep. D) there are too many astrocytes present. E) the levels of microglia are too low.
The final preparation of food so that it can be absorbed by the body occurs in the _________________________.?
Fill in the blank(s) with correct word
If gametes were diploid like somatic cells, how many chromosomes would the zygote contain?
A) Twice the diploid number, and with every succeeding generation, the chromosome number would continue to double and normal development could not occur. B) Half the diploid number with no change in development. C) Triple the diploid number, and with every succeeding generation, the chromosome number would continue to triple and normal development would not occur. D) There is no relationship between gametes and somatic cells.