Which of the following is paired correctly?
A. Mesoderm: lens and cornea
B. Endoderm: digestive mucosa
C. Mesoderm: thymus
D. Ectoderm: bone marrow
Answer: B
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Which of these vessels receives blood during ventricular systole?
A) aorta only B) pulmonary arteries only C) pulmonary veins only D) both the aorta and pulmonary trunk
All muscle types will respond to an electrical stimulus because all muscle cells are ________.
A. striated B. isometric C. involuntary D. contractile E. excitable
What might you expect to name a muscle that lies alongside the medial bone of the forearm, crosses the wrist, and acts to open a fist?
A. Flexor digitorum brevis B. Extensor carpi radialis C. Flexor carpi ulnaris D. Extensor carpi ulnaris E. Flexor digitorum profundus
An inflammation of the meninges called meningitis usually affects the
A) dura mater and arachnoid mater. B) arachnoid mater and pia mater. C) dura mater only. D) pia mater only.