The intestinal hormone secretin is released by endocrine cells in the duodenal mucosa in response to
a. distention of the stomach.
b. carbohydrate in the duodenum.
c. acid in the duodenum.
d. gastrin secreted by the pyloric gland area of the stomach.
e. none of these answers.
C
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Lymphatic organs differ from lymphatic tissues in what way?
A) They contain T lymphocytes and lymphatic tissues do not. B) They are found in the digestive tract and lymphatic tissues are found in the thorax. C) They are surrounded by a fibrous capsule and lymphatic tissues are not. D) They cannot produce antibodies, whereas lymphatic tissues can. E) They occur throughout the body except in the head.
The connective tissue wrapping that surrounds bundles (fascicles) of axons is the
A. epineurium. B. endoneurium. C. perineurium. D. endosteum. E. periosteum.
A high level of progesterone stimulates myometrial contraction
Indicate whether the statement is true or false
After birth, bones growth in length at the
A. periosteum. B. epiphyseal plates. C. primary ossification center. D. None apply.