Which of the following muscles serves as a common intramuscular injection site, particularly in infants as the buttocks and arm muscles are poorly developed?
A) the vastus lateralis
B) the vastus medialis
C) rectus femoris
D) the vastus intermedius
A
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Without a proprioceptive sense, you would NOT be able to
A) Clap your hands behind your back. B) Feel grains of sand on your fingertips. C) Autonomically control blood pressure. D) Sense changes in temperature.
Answer the following statements true (T) or false (F)
1. A transfusion reaction is a subacute hypersensitivity to foreign red blood cells. 2. Somatic recombination by B cells allows each B cell to form its own unique antibody genes. 3. Antigens can be complete or incomplete. 4. It is our genes, not antigens, that determine what specific foreign substances our immune system will be able to recognize and resist. 5. If even a small part of the spleen is left in a ten-year-old child, it will most likely regenerate itself.
The most likely outcome of nondisjunction is the production of a gamete receiving ________.
A. 46 chromosomes B. 22 chromosomes C. 44 chromosomes D. no chromosomes E. 23 chromosomes
Prostatic enlargement in older men is often due to the activity of what enzyme that acts on testosterone?
A. Epididymal sulfhydryl oxidase B. Tyrosine hydroxylase C. Aromatase D. 5-alpha reductase