The pyramidal system provides
A) voluntary control over skeletal muscles.
B) voluntary control over smooth muscles.
C) involuntary control over skeletal muscles.
D) involuntary control over smooth muscles.
E) involuntary control over cardiac muscle.
A
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Answer the following statements true (T) or false (F)
1. Systemic circulation begins in the left ventricle or aorta and ends in the vena cava or right atrium. 2. Pulmonary circulation begins in the pulmonary artery or right ventricle and ends in the pulmonary vein or right atrium. 3. The hepatic portal vein connects the blood leaving the liver to the inferior vena cava. 4. The hepatic portal system sends blood through two sets of capillary beds rather than the usual one set of capillaries. 5. One function of the hepatic portal system is to help maintain glucose homeostasis in the blood.
Thyroid hormone interacts with its target tissue by
A. increasing I- uptake in the target cells. B. binding to a membrane bound receptor. C. binding to receptor molecules in the nucleus. D. releasing thyroglobulin. E. using the intracellular mediator system.
In the human body, the male sperm cell is propelled by a single beating ____________________
Fill in the blank(s) with correct word
Normal RBC count per cubic millimeter (mm3) of blood is:
A) 4.8 million for males, 3.5 million for females B) 4.8 million for males, 5.4 million for females C) 5.4 million for males, 4.8 million for females D) 5.4 million for males, 2.0 million for females