Which of the following is derived from endoderm?
A. Epidermis of the skin
B. Brain
C. Muscle
D. Cardiovascular system
E. Mucosa of the digestive tract
Answer: E
You might also like to view...
A variety of lymphatic cells are involved in the immune response. Which is not part of the process?
A. Production of antibodies B. Direct attack and destruction of foreign or abnormal agents C. Replication of antigens D. Formation of memory cells
The only sympathetic preganglionic neuron to go directly to an organ is one branch of the ________ splanchnic nerve.
Fill in the blank(s) with the appropriate word(s).
What is the special role of the thymus gland?
What will be an ideal response?
An eccentric contraction is described as
A. action potential frequency is high enough that no relaxation of muscle fibers occurs. B. a muscle produces constant tension during contraction. C. a muscle produces an increasing tension during contraction. D. a muscle produces increasing tension as it shortens. E. a muscle produces tension, but the length of the muscle is increasing.