Hepatocytes receive blood from both the hepatic artery and the ________.
A. aorta
B. hepatic portal vein
C. superior vena cava
D. hepatic capillaries
Answer: B
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The great cardiac vein runs alongside the
A. posterior interventricular artery. B. coronary sinus. C. right marginal artery. D. circumflex artery. E. anterior interventricular artery.
The only direct connection between the pectoral girdle and the axial skeleton is where the ________ articulates with the ________.
A. scapula; thoracic cage B. clavicle; sternum C. scapula; clavicle D. humerus; scapula E. clavicle; humerus
A young couple has had regular, unprotected sexual intercourse for 4 years, without a pregnancy. They are seeking help at an assisted reproduction/in vitro fertilization clinic for infertility
The husband is very serious about weight training and physical fitness. Semen analysis reveals a sperm count of 10 million/ml (i.e., very low). His blood analysis reveals an elevated testosterone level. The psychiatrist at the clinic suspects that the husband injects (i.e., abuses) testosterone (T), which turns out to be true. Further blood work will reveal which of the following: A. increased estrogen, decreased LH, decreased FSH B. increased DHT, increased estrogen, increased FSH C. increased DHT, increased LH, increased FSH D. increased estrogen, decreased LH, decreased DHT E. decreased DHT, decreased FSH, decreased LH
Which mature cells do not have a nucleus?
A. columnar cells of small intestines B. columnar cells of upper respiratory tract C. spermatozoa D. macrophage (large, mobile white blood cell) E. red blood cells