The umbilical cord contains ________ umbilical vein(s) and ________ umbilical artery(ies).
A. two; three
B. one; one
C. two; two
D. one; two
E. two; one
Answer: D
Anatomy & Physiology
You might also like to view...
Undescended testes cause infertility because
A) they undergo apoptosis, and can no longer produce sperm. B) there is too little testosterone. C) they become entangled in the seminiferous tubules, which then degenerate. D) sperm development is impeded by the higher internal body temperature.
Anatomy & Physiology
Calcium plays an important role in __________.
A) neural conduction B) muscle contraction C) blood clotting D) all of the above
Anatomy & Physiology
Genetics play a role in hip dysplasia
Indicate whether the statement is true or false
Anatomy & Physiology
Polydactyly is an example of a trait that is both ___________ and variably expressive
A) completely penetrant B) incompletely penetrant C) pleiotropic D) multifactorial
Anatomy & Physiology