Which disease is caused by the absence of enteric neurons in the distal large intestine?
A. Multiple endocrine neoplasia type 2
B. Hirschsprung disease
C. Gastroenteritis
D. Spastic colon
Answer: B
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The parasympathetic innervation from the pelvic splanchnic nerves is responsible for erection of the female clitoris and the male penis.
Answer the following statement true (T) or false (F)
What does the "true/false" classification refer to?
A. result of taking the selection test B. your status on the criterion C. the quality of the selection decision D. the appropriateness of the selection ratio
The vertical osmotic gradient in the kidney
a. is established and maintained by the countercurrent system. b. makes it possible to put out urine of variable concentration depending on the needs of the body by varying the degree of water permeability of the distal portions of the nephron. c. is found in the renal cortex. d. both (a) and (b) above. e. all of these answers.
The major histocompatibility complex
a. was first observed in virally infected fish. b. is a group of cells responsible for presenting antigens to B-cells to stimulate antibody production. c. is a cluster of genes which encode self-antigens. d. is the membrane glycoprotein and associated antigen presented to B-cells. e. none of these.