___________ is mainly responsible for secondary sex characteristics and egg maturation.
A) Estrogen
B) Progesterone
C) Testosterone
D) Prolactin
E) Oxytocin
Answer: A) Estrogen
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One of the characteristics of muscle tissue is that is has extensibility. Which of the following best describes this characteristic?
A) Muscles contract when stimulated. B) Muscles have local electrical charges that move along the muscle fiber. C) Muscles only pull; they cannot push. D) Muscles can stretch when needed.
The trochlear notch of the ulna articulates with the ________ of the humerus.
A. trochlea B. olecranon fossa C. capitulum D. intertubercular sulcus E. head
Ossification that involves replacing cartilage with bone is ________.
A. intramembranous B. interstitial C. osteomalacia D. appositional E. endochondral
Blood pressure in arteries is higher than the blood pressure in capillaries. Blood flows from arteries to capillaries due to the presence of a:
A) homeostatic imbalance. B) positive feedback loop. C) negative feedback loop. D) pressure gradient.