These muscles increase thoracic cavity dimensions by elevating the first and second ribs during forced inhalation
A. External intercostals
B. Scalenes
C. Transversus thoracis
D. Internal intercostals
E. Serratus posterior inferior
B
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Cerebrospinal fluid
A) is secreted by ependymal cells. B) is formed by a passive process. C) is normally produced twice as fast as it is removed. D) has almost the same composition as blood plasma. E) contains blood cells and blood plasma.
Cortical regions that interpret sensory information or coordinate motor responses are called
A) lobes. B) cortices. C) hemispheres. D) association areas. E) primary motor areas.
Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called ________ and a vasodilator called ________.
A. heparin; histamine B. bradykinin; histamine C. selectin; prostaglandin D. prostaglandins; selectin E. histamine; heparin
Once a follicle has lost its egg, it develops into a corpus luteum, which _________.
A) develops into the endometrium B) triggers menstruation C) develops more eggs D) secretes the hormone progesterone, which maintains the uterine lining E) triggers ovulation