Anatomy and Physiology of the Endocrine System

Place the labels for the endocrine glands at their correct locations.

Adrenal Pancreas Ovaries Testes

Which statement is correct regarding the effects of calcitonin and parathyroid hormones?

Calcitonin prevents bone demineralization while parathyroid hormone increases calcium absorption. Parathyroid hormone increases blood calcium levels due to bone demineralization and calcitonin prevents bone demineralization.

Which body functions are controlled by thyroxine and triiodothyronine that are secreted by the thyroid gland?

Controls the heart rate Regulates the metabolic rate Provides control over muscles The thyroid gland secretes thyroxine and triiodothyronine. These help to control the heart rate. Thyroxine and triiodothyronine are produced by the thyroid gland and are responsible for regulating the metabolic rate. Thyroxine and triiodothyronine provide muscle control. These are secreted by the thyroid gland.

Which hormones released by the adrenal glands are responsible for the fight-or-flight response?

Epinephrine Norepinephrine Epinephrine is released in response to sympathetic nervous system stimulation and is responsible for the fight-or-flight response. Norepinephrine is responsible for the fight-or-flight response. It is released in response to stimulation of the sympathetic nervous system.

Which hormone is released in response to decreased blood glucose levels?

Glucagon Glucagon is released by the pancreas in response to low blood glucose levels. It stimulates the liver to convert stored glycogen into glucose for release into the blood.

Which hormones are produced by the marked portion of the adrenal gland?

Glucocorticoids Mineralocorticoids Gonadocorticoids The marked portion of the adrenal gland is the adrenal cortex. Gonadocorticoids, Minderalocorticoids, and glucocorticoids are produced by the adrenal cortex.

Which mechanism occurs when insulin binds with its insulin receptor sites on the cell membrane?

Glucose channels open to allow glucose to enter the cells When insulin binds with its receptor sites on the cell membrane, it opens the glucose channels to facilitate the entry of glucose into the cell.

Place the labels for the endocrine glands at their correct locations.

Hypothalamus Pituitary Thyroid Thymus

Which gland controls a person's sleep/wake cycle?

Pineal gland The pineal gland which secretes melatonin controls the sleep/wake cycle.

Which effects are a result of calcitonin release?

Reduction of blood calcium levels Decreases calcium release from bones