32 Questions
Which of the following is NOT a characteristic of the endocrine system?
Glands with ducts
What type of hormone is testosterone?
Steroid
What organ is nicknamed the 'master gland'?
Brain
What cell type secretes ACTH?
Corticotropic cells
Where is corpora arenacea found?
Pineal gland
Which gland secretes melatonin?
Pineal gland
What type of hormone is insulin?
Peptide
What connects the pituitary to the hypothalamus?
Infundibulum
Which of the following is not part of the adenohypophysis?
Pars nervosa
What cell type secretes prolactin?
Lactotropic cells
Which of the following cells can be classified as an acidophil?
Lactotropic cells
Which gland secretes calcitonin?
Thyroid
Where is glucagon secreted from?
Alpha cells
Which of the following is a component of the adrenal medulla?
Chromaffin cells
What are the cells of the pineal gland called?
Pinealocytes
What type of hormone is prolactin?
Peptide
Which of the following hormones is NOT a steroid?
Insulin
Which gland is responsible for secreting glucocorticoids?
Zona reticularis
Where are the chromaffin cells located?
Adrenal medulla
What type of hormone is calcitonin?
Protein
Which cell type secretes thyroglobulin?
Follicular cell
What is the main function of the adrenal cortex?
Maintenance of glucose levels
Which type of hormone is insulin?
Peptide
What cell type secretes MSH (melanocyte-stimulating hormone)?
Gonadotropic cells
Where is glucagon secreted from?
Alpha cells
Which gland secretes calcitonin?
Thyroid
Where are tropic hormones secreted from?
Adenohypophysis
Which of the following is a component of the adrenal medulla?
Chromaffin cells
Which gland secretes cortisol?
Adrenal gland (cortex)
What cell type is found in the adrenal medulla?
Principal cell
Which of the following cells can be classified as an acidophil?
None of the above
What type of hormone is prolactin?
Peptide
Study Notes
Characteristics of the Endocrine System
- The endocrine system does not have a characteristic of voluntary muscle involvement.
Hormones
- Testosterone is a steroid hormone.
- Insulin is a peptide hormone.
- Prolactin is a protein hormone.
- Calcitonin is a peptide hormone.
- Melatonin is a hormone secreted by the pineal gland.
- Glucagon is a peptide hormone secreted by the pancreas.
- ACTH (adrenocorticotropic hormone) is a hormone secreted by the corticotrophs.
Glands and Organs
- The pituitary gland is nicknamed the 'master gland'.
- The pineal gland secretes melatonin.
- The thyroid gland secretes calcitonin.
- The adrenal gland secretes cortisol and has an outer cortex and inner medulla.
- The pancreas secretes glucagon.
Cells and Tissues
- Corticotrophs are the cell type that secretes ACTH.
- Lactotrophs are the cell type that secretes prolactin.
- Acidophils are the cell type that can be classified as an acidophil.
- Chromaffin cells are located in the adrenal medulla.
- Pinealocytes are the cells of the pineal gland.
- Thyrotrophs are the cell type that secretes thyroglobulin.
- Melanotrophs are the cell type that secretes MSH (melanocyte-stimulating hormone).
Connections and Functions
- The infundibulum connects the pituitary to the hypothalamus.
- The main function of the adrenal cortex is to secrete glucocorticoids.
- Tropic hormones are secreted from the anterior pituitary gland.
- The adrenal medulla is a component of the adrenal gland and secretes catecholamines.
Test your knowledge of the characteristics of the endocrine system with this multiple-choice quiz. Identify the features and types of hormones associated with the endocrine system, and assess your understanding of its key components like the 'master gland'.
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