The closed foramen ovale becomes the ________ after birth.
A. fossa ovalis
B. ligamentum arteriosum
C. ligamentum venosum
D. ligamentum ovale
E. valves
Answer: A
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This figure shows an example of regulation of hormone secretion by a negative feedback loop. The large box labeled 1 represents the initial stimulus. What endocrine glands are indicated by the letters d and e?
A. d = thalamus, e = anterior pituitary B. d = hypothalamus, e = thyroid gland C. d = hypothalamus, e = posterior pituitary D. d = hypothalamus, e = anterior pituitary E. d = thalamus, e = posterior pituitary
A primary target of insulin in skeletal muscle is:
A. glucokinase B. acetyl CoA carboxylase C. uncoupling proteins D. fatty acid synthase E. GLUT4
A coroner determines the cause of death to be strangulation because this delicate bone is fractured. Which bone is this?
A. C2 B. vomer C. clavicle D. sphenoid E. hyoid
Cells contain pairs of chromosomes. since they are the same size and shape and also code for the same information, each pair of chromosomes is called which of the following?
a) diploid chromosomes b) sex chromosomes c) autosomes d) homologous chromosomes